CN1318880A - Microstrip aerial - Google Patents
Microstrip aerial Download PDFInfo
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- CN1318880A CN1318880A CN00109180A CN00109180A CN1318880A CN 1318880 A CN1318880 A CN 1318880A CN 00109180 A CN00109180 A CN 00109180A CN 00109180 A CN00109180 A CN 00109180A CN 1318880 A CN1318880 A CN 1318880A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
Abstract
A microstrip antenna(100) comprises a ground patch(40) where a feeder line(30) is located; a dielectric member(50) deposited onto the ground patch(40); a left radiation patch(61) shorted to an end of the ground patch(40), and deposited onto the left upper surface of the dielectric member(50); and a right radiation patch(62) shorted to the other end of the ground patch(40), and deposited onto the right upper surface of the dielectric member(50) with a radiation slot(70) interposed between the left and right radiation patches(61) (62) so as to obtain an electrostatic capacity. The invention improves gain by reducing current leakage.
Description
The present invention relates to microstrip antenna.Specifically, the present invention relates to a kind of like this microstrip antenna, by left radiation sticking patch and right radiation sticking patch are arranged in dielectric upper surface, can make the leakage current minimum of microstrip antenna, thereby make them that the electric field of same phase be arranged, and can dwindle its size, in addition, by standing-wave ratio and the gain that improves it, can make such as various Wireless Telecom Equipments such as portable mobile termianls, make these equipment that very wide bandwidth be arranged.
In general, the frequency mainly used of mobile radio telecommunications is in the 150-900MHz scope.In recent years, according to the requirement of quick increase, also use the frequency of the counterfeit microwave band in the 1-3GHz scope.
When counterfeit microwave band is applied to mobile radio telecommunications, personal communication service (PSC) has been used the frequency range of 1.7-1.8GHz, mobile radio communications system of future generation such as GMPCS (1,6GHz), IMT2000 (2GHz) etc. will also use counterfeit microwave band, make communication spread all over all places, the world.
Along with because of its fast development, the size that makes pocket telephone becomes very little but is of high quality, and the importance of their antenna just shows naturally, and for example, microstrip antenna has shown as the theme of special research in this field.
Usually because dielectric constant is lower, and substrate is thicker, microstrip antenna has higher efficient.Equally,, and descend efficient higher in a moment at high frequency because microstrip antenna descends efficient lower in a moment at low frequency, so, can think that microstrip antenna can satisfy the restrictive condition of the miniaturization of pocket telephone pursuit.
Simultaneously, the structure of common microstrip antenna is that according to this configuration, the radiation patch with λ/2 resonance lengths is attached on the wide floor, and is array format.Between the paster of distributing point left and right sides and floor, form power line.If the floor is shorter at the left and right sides of distributing point, will limit the formation of power line, therefore, the gain of antenna is lower, and makes antenna miniaturization very difficult.
Microstrip antenna has a kind of simple structure, and according to this configuration, electrolyte is formed on the floor, and rectangle or circular radiation patch are attached to electrolytical upper surface, and thus, this structure has certain shortcoming, and promptly narrow bandwidth and efficient are low.But, its advantage is can low-cost production's small size and the antenna of light weight, therefore, is suitable for large-scale production.
Have, because the free band characteristic of microstrip antenna, it can be wrapped on various devices and the parts by predetermined form again, and can easily be attached on the swiftly passing object, so its quilt is extensively with being flyer, as the transmit/receive antenna of rocket, guided missile, aircraft.
In addition, microstrip antenna can be designed on circuit board with solid modules, described solid modules is such as being oscillator, amplifying circuit, various attenuator, switching circuit, modulator, frequency mixer, phase shifter etc.
Above-mentioned microstrip antenna can be designed to have one or two distributing point and circle or rectangular radiation patch in requiring the satellite communication system of circularly polarised wave.In addition, it also can be used for transmitter unit, remote-control receiver, biomedical radiator of Doppler radar, wireless altimeter, guided missile telemetering equipment, weapon, environment machine and its remote sensor, combined antenna etc.
Original, along with mobile communication terminal, as popularizing fast of car phone, portable phone, cordless telephone etc., because the fast development of information processing, the used equipment of this mobile communication becomes small-sized, and this just requires the size of antenna also little.
Fig. 1 is the end view of general microstrip antenna.Referring to Fig. 1, general microstrip antenna has the radiation patch 1 of two ends open circuit, and therefore, the CURRENT DISTRIBUTION of paster 1 is 0, and the voltage distribution is a maximum.The position of distributing point is determined by the ratio of CURRENT DISTRIBUTION value and voltage distribution value according to the resistance value of feeder line 2.
In addition, can think that power line 3 and 5 is divided into vertical component and horizontal component respectively.Vertical component is cancelled out each other, and this is because phase place is opposite each other; And horizontal component exists with the form of array, and this is because phase place is identical.
If determine that the length on floor 6 of microstrip antenna is shorter, power line 3 that applies and 5 scope are limited, and this causes the decay that gains.Original, shorten the miniaturization that antenna can not be realized in floor 6.
In general, microstrip antenna is the parts of VHF/UHF wave band, and requires that compact and light structure are arranged.There are several microstrip antennas in microstrip antenna as having developed at present, for example, and quarter-wave microstrip antenna (QMSA), post loaded microstrip antenna (PMSA), the microstrip antenna of windowing (WMSA), frequency change microstrip antenna (FVMSA) etc.PMSA, WMSA and FVMSA are the QMSA of part remodeling, and therefore, they all have similar radiation diagram basically.
Fig. 2 is the perspective view of the conventional QMSA structure of expression.Referring to Fig. 2, according to the QMSA of routine, made up radiation patch 23 and floor 21, they have identical width W, and floor 21 is along extending with the radiation 22 opposite directions of opening a way, so that the small size that can be installed in small-sized radio antenna to be provided.
Especially, according to the QMSA of Fig. 2, electrolyte 22 and radiation patch 23 are attached on the floor 21 of λ g (guide wavelength)/2 successively, an end on floor 21 is shorted to radiation patch 23, and the length of radiation patch 23 is defined as λ g/4, and fixing frequency range is arranged.
Equally, to floor 21, the inner conductor of feeder line 24 (core conductor) is connected to radiation patch 23 by floor 21 and electrolyte 22, and (meeting of NEC informatics is rolled up .J71-B, 1988.11.) to the external conductor of feeder line 24 by ground.Usually can use polyethylene (ε r=2.4), polytetrafluoroethylene (ε r=2.5) or epoxy resin fiberglass (ε r=3.7) as electrolyte 22.
Fig. 3 represents that the ratio of gains changes with the variation of Gz among Fig. 2.Among Fig. 30 (decibel) represents the gain of half wavelength dipoles sub antenna.For the increment rate of determining radiation, Gz is playing the part of very important role.Fig. 4 shows the rate of change according to the gain of the long L of antenna all-wave of Fig. 2, and, the ratio of gains of the width of Fig. 5 displayed map 2 radiation patch 23.
The measuring radiation characteristic of Fig. 6 displayed map 2 QMSA.In Fig. 6, (A), (B), (C) represent XY plane, YZ plane and XZ plane respectively.As shown in Figure 6, can see that the QMSA of Fig. 2 is the electric field antenna with omnidirectional radiation pattern.Be defined as by the parameter with antenna: width=0.12cm, the DIELECTRIC CONSTANT r=2.5 (polytetrafluoroethylene) of the width=3cm of antenna total length L=7.67cm, Gz=2.79cm, radiation patch 23, electrolyte 22 obtain the radiation characteristic of QMSA.
Simultaneously, in urban environment in complexity, when standing wave distributes and to be positioned at its smallest point, since the diffraction of signal, reflection etc., the emission of electric field antenna/receiving sensitivity variation, and this causes communication to be interfered.
Therefore, current ratio equipment or system's usage space diversity, direction diversity, polarization diversity etc.At this moment, two or more antennas can be installed, to solve the low receiving sensitivity that causes by multichannel.
Simultaneously, according to a kind of microstrip antenna PMSA (not shown) of modification, form two radiation open circuit surface in the both sides of radiation patch, a short circuit post is connected to the floor, radiation patch is passed the dielectric of QMSA, and does not pass short-circuit end, and feeder line is placed on the pre-position apart from the short circuit post.Although this PMSA has two open circuit surface, radiation diagram is similar to the radiation diagram of QMSA basically.
Equally,, form a slot,, therefore, shortened the length of radiation patch so that an impedance component is arranged in the pre-position of the radiation patch of distance QMSA according to a kind of microstrip antenna WMSA (not shown) of remodeling.According to the FVMSA (not shown), the resonance frequency of QMSA can change in the electronics mode according to the variation of impedance load value.
Yet, conventional remodeling microstrip antenna, promptly QMSA, PMSA, WMSA and FVMSA have some shortcomings, determine that the floor is smaller if Here it is, and it is narrow that the radiation open circuit surface just becomes, and its gain reduction is bigger, so that their size can not be very little.Equally, if in portable radio communication device, use them,, make their field intensity variation, and because multipath disturbs, receiving sensitivity will be also with variation owing to the body of wall of building and the various metals in the building.
The objective of the invention is to solve the problem that prior art exists, and provide a kind of and can reduce its size greatly and microstrip antenna that its gain can not decay, and do not limit the scope of the power line between floor and the radiation patch, and by at the capacitive load face rather than obtain high-gain on the floor, this microstrip antenna has very wide bandwidth.
For achieving the above object, a kind of microstrip antenna that comprises the floor is provided, on the floor, places a feeder line at least, and have dielectric layer to be pressed on the floor, described microstrip antenna comprises: left radiation patch, and it is shorted to an end on floor and is laminated on dielectric upper left surface; Also comprise right radiation patch, it is shorted to the other end on floor and is laminated on dielectric upper right surface with the form of array, at dielectric upper right, be arranged with radiating slot between the radiation patch of the left and right sides, make between the radiation patch of the left and right sides and form electric capacity, wherein, described floor comprises: right floor, it has two trigonums that dihedral becomes by distributing point with the dielectric bottom right face of feeder line, and right radiation patch is shorted to right floor; Connecting plate with narrow width, this connecting plate extends from the height of distributing point to left radiation patch along right floor, forms inductance; And left floor, it is connected to described connecting plate and covers described dielectric lower-left face.
Microstrip antenna of the present invention preferably also comprises: have the installed part of curved shape, this installed part is attached to the middle part of left radiation patch left end, a dielectric side and left floor, with the height that provides the floor to install respectively.
By its preferred embodiment is described with reference to the drawings, will make above-mentioned purpose of the present invention, other characteristics and advantage become obvious further, wherein:
Fig. 1 is the end view of the general microstrip antenna of expression;
Fig. 2 is the perspective view of the conventional QMSA antenna structure of expression;
Fig. 3 is the relation curve of expression gain about Gz among Fig. 2;
Fig. 4 is the relation curve of expression gain about Fig. 2 antenna total length L;
Fig. 5 is the relation curve of expression gain about the width W of the radiation patch 23 of Fig. 2;
Fig. 6 is the radiation characteristic view of expression along XY, YZ and ZX direction;
Fig. 7 is the perspective view of expression microstrip antenna structure of the present invention;
Fig. 8 is the plane graph of expression microstrip antenna structure of the present invention;
Fig. 9 is the bottom view of expression microstrip antenna structure of the present invention;
Figure 10 is the end view of expression microstrip antenna structure of the present invention;
Figure 11 is the perspective view of seeing from microstrip antenna of the present invention bottom;
Figure 12 is the curve of the return loss of expression microstrip antenna of the present invention about frequency;
Figure 13 is the curve of the standing-wave ratio of expression microstrip antenna of the present invention about frequency;
Figure 14 is the Smith chart of explanation microstrip antenna of the present invention;
Figure 15 is the schematic diagram of the radiation pattern of explanation microstrip antenna of the present invention.
Describe structure of the present invention in detail and work in a moment hereinafter with reference to accompanying drawing.
Fig. 7 is the perspective view of expression microstrip antenna structure of the present invention.
As shown in Figure 7, microstrip antenna of the present invention comprises the dielectric 50 that is laminated on the floor 40.At the upper surface of dielectric 50, left radiation patch 60 is positioned by the mode with floor 40 1 terminal shortcircuits, and right radiation patch 62 is positioned by the mode with floor 40 other end short circuits.A slot (each interval 0.5mm between the paster of the left and right sides, slot is called as radiating slot 70) is being arranged between the paster of the left and right sides.
The microstrip antenna that forms by slot 70 can be between left radiation patch 61 and right radiation patch 62 the loading capacitance amount, make the formation that can not limit power line, so that antenna is easier is miniaturized.The gain of capacitive load one side increases, and surpasses the gain on the floor 40, makes it have the radiation diagram of big gain, and therefore, this antenna preferably is used as the antenna of PCS service wave band.
Particularly the gain of microstrip antenna 100 is increasing by 1 to 1.76 decibel with respect to the capacitive load face on floor 40, and maximum field is arranged is 2 decibels radiation diagram, and therefore this gain, preferably is used in the various wireless devices greater than the gain of former dipole antenna.
In addition, adopt microstrip antenna 100 of the present invention, can adjust the thickness of dielectric 50 and the width of capacitive load side, to increase or to reduce described bandwidth and described gain, can adjust the feed position of feeder line 30 by 1 variable mode, to eliminate the edge effect of feeder line distributing point, therefore, overcome the uncertain distribution of feeder line effectively.
Fig. 8 is the plane graph of expression microstrip antenna structure of the present invention.
The microstrip antenna 100 of Fig. 8 of the present invention is examples, wherein, and as total length l
1It is the length l of 25mm, left paster 61
2It is the length l of 14.5mm, right paster 62
4When being 10mm, consider the width of radiating slot 70, i.e. length l
3Be 0.5mm, width W 1 is 15mm.
Fig. 9 is the bottom view of expression microstrip antenna structure of the present invention.
As shown in Figure 9, make the feeder line point of feeder line 30 location as one earthy of floor 40 process of described microstrip antenna.The core conductor of feeder line 30 through the floor 40 and dielectric 50 extend towards width center near the right radiation patch of radiating slot 70.The external conductor of feeder line 30 is connected to floor 40.Feeder line 30 at interval separately, and with left and right sides radiation patch 61 and 62 in each separate, under this state, make between described two pasters of dielectric 50 insertions.Because dielectric 50 makes each electric coupling in feeder line 30 and the left and right sides radiation patch 61 and 62.
As shown in Figure 9, owing to open a way in the both sides on the connection floor 42 on the floor 40 that is connected with feeder line 30, so the CURRENT DISTRIBUTION of these both sides is 0, and the voltage distribution becomes maximum.If the total length of microstrip antenna 100 is 25mm, the height l on then best right floor 41
5Be 5mm, the length l that connects floor 42
6It is the length l on 6mm, left floor 43
7Be 14mm.In addition, if the total length l of microstrip antenna 100
1Be 15mm, then preferably microstrip antenna 100 be designed to that it is the some place of 7.5mm that the core conductor of feeder line 30 is connected apart from dielectric 50 1 ends, promptly dielectric width center, the width W 2 that connects floor 42 is 2mm.In addition, as shown in figure 10, the gross thickness H1 of microstrip antenna 100 is 3.2mm.
The above embodiment of the present invention microstrip antenna 100 comprises having the floor 40 of both sides for open circuit, as normal line, therefore, provides the inherent feature that will explain below with described connecting plate.In order to keep these inherent features, must be installed to floor 40 such as on the printed circuit board (PCB) away from portable mobile terminal (radio telephone), microstrip antenna 100 will be installed on this portable terminal.
Figure 10 is the end view of expression microstrip antenna structure of the present invention.
In this example, floor 40 is directly installed on the printed circuit board (PCB) of portable mobile terminal, this is nonsensical as the baseline both sides by open circuit owing to getting connecting plate, the edgewise bend of dielectric 50 is passed through to left floor 43 from the center of left radiation patch 61 in floor 40, and a crooked installed part 80 is arranged, to provide the height H 2 that departs from printed circuit board (PCB).For example, the height that installed part 80 keeps microstrip antenna 100 to depart from the printed circuit board (PCB) of portable terminal is 3mm, makes the function on floor 40 can reach maximum.
Best, the length T 1 that is installed in the installed part 80 on left radiation patch 61 upper surfaces and left floor 43 lower surfaces is respectively 3mm, and width S 1 is 8mm, and crooked width S 2 is 2mm, and length T 2 is 2.7mm.
Adopt said structure, microstrip antenna 100 of the present invention is used as flyer, transmit/receive antenna as rocket, guided missile, aircraft etc., and this microstrip antenna can be designed on circuit board with solid modules, described solid modules is for example oscillator, amplifying circuit, various attenuator, switching circuit, modulator, frequency mixer, phase shifter etc.
Below explanation is applied to microstrip antenna of the present invention the embodiment of portable mobile termianl.
Use dipole antenna, Yagi antenna etc. in the portable mobile termianl.Dipole antenna is the half-wavelength resonant antenna, has the characteristic of omnidirectional radiation, makes it be used as the antenna and the little relay services antenna of portable terminal in the cellular communication.Yagi antenna is made of stacked even loom antenna, and in order to improve directive gain, it is used as little relaying antenna.
In addition, microstrip antenna 100 is used for the personal mobile communication service, as using cell phone and personal communication service, wireless local loop service, following public land mobile communication system, being included in the various radio communications of the satellite communication that transmits and receives signal between base station and the portable terminal.
Simultaneously, because the folded antenna of existing little belt is a resonant antenna, its shortcoming is that the smaller bandwidth and the gain of frequency is lower.Therefore, must be stacked or arrange a large amount of pasters.This causes increasing the size and the thickness of antenna.For this reason, the antenna of prior art is installed in individual mobile terminal, mobile communication repeater, Wireless Telecom Equipment is first-class all is very difficult.
Microstrip antenna of the present invention by left radiation sticking patch and right radiation sticking patch spaced apart at dielectric upper surface, make the leakage current minimum, to cause them that the electric field of same phase is arranged, and can make its size minimum, so, by standing-wave ratio and the gain that improves it, can make various Wireless Telecom Equipments as portable mobile termianl, these equipment have very wide bandwidth.
Figure 12 is the curve of the return loss of expression microstrip antenna of the present invention about frequency.
To illustrate that from Figure 12 in microstrip antenna of the present invention, its service wave band is in 1,750 to 1,870 scope, bandwidth is at (greatly more than 160MHz) more than the 120MHz, so it can more easily adapt to personal communication service.
Microstrip antenna particularly of the present invention shows, because 1,750 to 1, the return loss in the 870MHz scope is-10 decibels, so the loss value of reflected current is very little.In addition, its bandwidth is remained on the 120MHz magnitude very widely.
Figure 13 be the standing-wave ratio of expression microstrip antenna of the present invention about the curve of frequency, wherein in the frequency band of personal communication service, for the maximum standing-wave ratio of 50 Ω resonance impedances be 1: 1.06 to 1.76.
Suppose that desirable standing-wave ratio is 1 in microstrip antenna, then at mark 1 place, standing-wave ratio is 1.768, and frequency is 1.75000GHz, at mark 2 places, standing-wave ratio is 1.1613, frequency is 1.78000GHz, and at mark 3 places, standing-wave ratio is 1.4269, frequency is 1.84000GHz, at mark 4 places, standing-wave ratio is 1.80664, and frequency is 1.87000GHz.Therefore, the standing-wave ratio for 50 Ω resonance impedances in the 0.12GHz bandwidth is an optimum reality.
In addition, for for the emission/reception of base station or relay station, the radiation gain of microstrip antenna 100 of the present invention should be realized effectively.The measurement result of the radiation gain of the indoor conduction of not reflected therein as electromagnetic wave can be found, obtains 0.5 to 1.3 decibel radiation gain along all directions.
Figure 14 is the Smith chart of explanation microstrip antenna of the present invention.
Suppose that the resonance impedance in the frequency band of personal communication service is 50 Ω, at mark 1 place, impedance is 33.660 Ω, and frequency is 1.75000GHz, at mark 2 places, impedance is 44.160 Ω, frequency is 1.78000GHz, and at mark 3 places, impedance is 59.616 Ω, frequency is 1.84000GHz, at mark 4 places, impedance is 47.864 Ω, and frequency is 1.87000GHz.Therefore, the resonance impedance in the 0.12GHz bandwidth is to be implemented in the scope of 34 to 60 Ω, and especially, the resonance impedance of mark 1 and 2 o'clock is near 50 Ω.
Figure 15 is the schematic diagram of the radiation pattern of explanation microstrip antenna of the present invention.
Microstrip antenna of the present invention has been realized omni-directional pattern as shown in figure 15, therefore, has solved directional problems.
What should illustrate is, Y-axis is represented the amplitude of decibel, and line A represents 1.74GHz, and line B represents 1.78GHz, and line C represents 1.8GHz, and line D represents 1.84GHz, and line E represents 1.87GHz, therefore, realizes the omni-directional pattern sample.
Adopt said structure, because in the external conductor of feeder line, do not have leakage current flow, so, need in the portable radiotelephone system, match circuit be set.In addition, owing to it is made of the loading capacitance amount, so the power line between floor 40, right radiation patch 62 and left radiation patch 61 is hard-core.Therefore, make its size little and can not reduce its gain.
Because left radiation patch 61 and right radiation patch 62 by radiating slot 70 separately make whole radiation patch have the electric field of same phase, can solve the problem of low receiving sensitivity.
Particularly microstrip antenna 100 has increased by 1 to 1.76 decibel about the gain with respect to capacitive load one side on floor 40, and have 2 decibel the maximum field radiation diagram bigger, make it can be used as the antenna of PCS service wave band effectively than existing dipole antenna.
In addition, adopt microstrip antenna 100 of the present invention, can adjust the thickness H1 of dielectric 50 and the width of capacitive load side, to increase or to reduce its bandwidth gain, can adjust the distributing point of feeder line 30 changeably, to eliminate the edge effect that the feeder line distributing point takes place, therefore, overcome the uncertain distribution of feeder line effectively.
Have, the increase of gain appears at partly and not 40 places on the floor of capacitive load again.So microstrip antenna 100 of the present invention can have the radiation pattern of high-gain.
Microstrip antenna of the present invention can be used as the transmit/receive antenna of flyer, for example, rocket, guided missile, aircraft etc., and substrate and solid modules can be designed together, described solid modules is oscillator, amplifying circuit, various attenuator, switching circuit, modulator, frequency mixer, phase shifter etc.In addition, microstrip antenna 100 is used for the personal mobile communication service, as using cell phone and personal communication service, wireless local loop service, following public land mobile communication system, being included in the various radio communications of the satellite communication that transmits and receives signal between base station and the portable terminal.
Although described the present invention with reference to the accompanying drawings, should be understood that this description is not defined in the present invention embodiment shown in the drawings, only just in order to explanation the present invention.Those skilled in the art can understand, and the embodiment that discloses from specification can make various shape and the modification of changing.Therefore, scope of the present invention should be determined by appended each claim.
Claims (2)
1. a microstrip antenna (100) comprising: floor (40), place a feeder line (30) on it at least; Dielectric (50) is laminated on the floor (40), also comprises:
Left side radiation patch (61), it is shorted to an end on floor (40), and by and be laminated to the upper left surface of dielectric (50); Right radiation patch (62), it is shorted to the other end of floor (40), and be laminated in the upper right surface of dielectric (50) with the radiating slot (70) that is arranged between left and right sides radiation patch (61) and (62) with the form of array, make between left and right sides radiation patch (61) and (62) and form electric capacity;
Wherein, described floor (40) comprising: right floor (41), it has two trigonums that dihedral becomes by distributing point with dielectric (50) the bottom right face of feeder line (30), and right radiation patch (62) is shorted to right floor; Connecting plate (42), it has narrow width (W2), and extends from the height (15) of distributing point to left radiation patch (61) along right floor (41), forms inductance; And left floor (43), it is connected the also surface, lower-left of covering dielectric (50) with connecting plate (42).
2. according to the described microstrip antenna of claim 1 (100), also comprise: installed part (80) with curved shape, this installed part is attached on the side and left floor (43) of middle part, dielectric (50) of left radiation patch (61) left end, so that can provide the height that is installed separately (H2) to floor (40).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000019972A KR100349422B1 (en) | 2000-04-17 | 2000-04-17 | A microstrip antenna |
| KR200019972 | 2000-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1318880A true CN1318880A (en) | 2001-10-24 |
| CN1134858C CN1134858C (en) | 2004-01-14 |
Family
ID=19664699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001091808A Expired - Fee Related CN1134858C (en) | 2000-04-17 | 2000-06-14 | Microstrip aerial |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1148581B1 (en) |
| JP (1) | JP2001313518A (en) |
| KR (1) | KR100349422B1 (en) |
| CN (1) | CN1134858C (en) |
| AT (1) | ATE284573T1 (en) |
| DE (1) | DE60016565D1 (en) |
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| EP1313166B1 (en) | 2000-04-19 | 2007-11-14 | Advanced Automotive Antennas, S.L. | Multilevel advanced antenna for motor vehicles |
| JP2002344231A (en) * | 2001-04-17 | 2002-11-29 | Samsung Electronics Co Ltd | Plate-like inverted f-shaped antenna |
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| KR100477278B1 (en) * | 2002-05-15 | 2005-03-22 | (주) 코산아이엔티 | Microstrip dual band antenna |
| FR2841046B1 (en) * | 2002-06-17 | 2006-06-16 | France Telecom | PASTILLE ANTENNA COMPACT WITH ADAPTATION MEANS |
| JP2005531177A (en) | 2002-06-25 | 2005-10-13 | フラクトゥス・ソシエダッド・アノニマ | Multiband antenna for handheld terminal equipment |
| EP1586134A1 (en) | 2003-01-24 | 2005-10-19 | Fractus, S.A. | Broadside high-directivity microstrip patch antennas |
| EP1792363A1 (en) | 2004-09-21 | 2007-06-06 | Fractus, S.A. | Multilevel ground-plane for a mobile device |
| US8378892B2 (en) | 2005-03-16 | 2013-02-19 | Pulse Finland Oy | Antenna component and methods |
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| CN101359775B (en) * | 2008-09-18 | 2012-08-08 | 中国科学院光电技术研究所 | Two-dimensional groove directed microstrip paster antenna |
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| GB2067842B (en) * | 1980-01-16 | 1983-08-24 | Secr Defence | Microstrip antenna |
| WO1996027219A1 (en) * | 1995-02-27 | 1996-09-06 | The Chinese University Of Hong Kong | Meandering inverted-f antenna |
| US5781158A (en) * | 1995-04-25 | 1998-07-14 | Young Hoek Ko | Electric/magnetic microstrip antenna |
| JP2000059132A (en) * | 1998-08-10 | 2000-02-25 | Sony Corp | Antenna system and portable radio device |
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- 2000-04-17 KR KR1020000019972A patent/KR100349422B1/en not_active IP Right Cessation
- 2000-06-01 DE DE60016565T patent/DE60016565D1/en not_active Expired - Lifetime
- 2000-06-01 EP EP00304669A patent/EP1148581B1/en not_active Expired - Lifetime
- 2000-06-01 AT AT00304669T patent/ATE284573T1/en not_active IP Right Cessation
- 2000-06-05 JP JP2000168200A patent/JP2001313518A/en active Pending
- 2000-06-14 CN CNB001091808A patent/CN1134858C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101536253B (en) * | 2006-11-06 | 2013-09-11 | 株式会社村田制作所 | Patch antenna unit and antenna unit |
| CN101212496B (en) * | 2006-12-29 | 2011-07-13 | 西北工业大学 | Metamaterial microstrip line based radiation-proof mobile phone enclosure |
| CN102150185A (en) * | 2008-09-12 | 2011-08-10 | 无穷动力解决方案股份有限公司 | Energy device with integral conductive surface for data communication via electromagnetic energy and method thereof |
| CN102150185B (en) * | 2008-09-12 | 2014-05-28 | 无穷动力解决方案股份有限公司 | Energy device with integral conductive surface for data communication via electromagnetic energy and method thereof |
| CN106356621A (en) * | 2016-10-26 | 2017-01-25 | 集美大学 | Microstrip antenna |
| CN111313151A (en) * | 2019-11-13 | 2020-06-19 | 湖北三江航天险峰电子信息有限公司 | Small ultra-wideband out-of-plane mirror image dipole array antenna |
| CN111273274A (en) * | 2020-03-12 | 2020-06-12 | 四川九洲电器集团有限责任公司 | Multi-base cooperative positioning method, storage medium, radar and radar positioning system |
| CN111273274B (en) * | 2020-03-12 | 2022-03-18 | 四川九洲电器集团有限责任公司 | Multi-base cooperative positioning method, storage medium, radar and radar positioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1134858C (en) | 2004-01-14 |
| DE60016565D1 (en) | 2005-01-13 |
| EP1148581B1 (en) | 2004-12-08 |
| JP2001313518A (en) | 2001-11-09 |
| KR100349422B1 (en) | 2002-08-22 |
| ATE284573T1 (en) | 2004-12-15 |
| EP1148581A1 (en) | 2001-10-24 |
| KR20010096062A (en) | 2001-11-07 |
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