CN102593580B - Ultra-wideband omnidirectional radiation bipolar wire antenna - Google Patents
Ultra-wideband omnidirectional radiation bipolar wire antenna Download PDFInfo
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- CN102593580B CN102593580B CN201210087389.9A CN201210087389A CN102593580B CN 102593580 B CN102593580 B CN 102593580B CN 201210087389 A CN201210087389 A CN 201210087389A CN 102593580 B CN102593580 B CN 102593580B
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Abstract
The invention relates to an ultra-wideband omnidirectional radiation bipolar wire antenna, which relates to an ultra-wideband bipolar wire antenna, and aims at solving the problems of the present wire antenna that wideband indexes are low and the omni-directivity of a directional diagram is unstable. Four first wire antenna units are intersected and uniformly distributed, symmetric lines of the four first wire antenna units are overlapped, an intersected point of four first metal rods which are bent into a semicircular shape is arranged on the lowermost end of a first-grade wire antennas, and a loading metal body wraps the intersected point of the four metal rods which are bent into the semicircular shape; four second wire antenna units are intersected and are uniformly distributed, symmetric lines of the four second wire antenna units are overlapped, an intersected point of four second metal rods which are bent into a semicircular shape is arranged on the uppermost end of a second-grade wire antenna, a shielding layer is coated onto a core wire, a feeding coaxial wire is vertically arranged on the center of the second wire antenna units, and the upper end of a core wire of the feeding coaxial wire is connected with the loading metal body. The ultra-wideband omnidirectional radiation bipolar wire antenna is used as an element to transmit or receive electromagnetic waves in an ultra-wideband wireless communication system.
Description
Technical field
The present invention relates to a kind of ultra broadband twin-stage wire antenna.
Background technology
Existing wire antenna comprises Sinuous Antenna, line cone antenna and butterfly wire antenna, and above-mentioned wire antenna all has broadband character, but existing wire antenna broadband index is low, directional diagram omni-directional is unstable, can not be applicable to the fields such as electromagnetic environment monitor, spectrum measurement.
Summary of the invention
In order to solve, existing wire antenna broadband index is low, the unsettled problem of directional diagram omni-directional in the present invention, and then a kind of ultra-wideband omnidirectional radiation bipolar wire antenna is provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention consists of first order wire antenna and second level wire antenna, described first order wire antenna be positioned at second level wire antenna directly over, first order wire antenna consists of metal-loaded body and four First Line antenna elements, each First Line antenna element bends to semicircular Metallic rod by first, the first cross bar and two the first montants form, each first two ends that bend to semicircular Metallic rod forms the first enclosed construction with the two ends of corresponding first cross bar, in each first enclosed construction, be provided with two the first montants, the upper end of every the first montant connects with the first corresponding cross bar, the lower end of every the first montant and corresponding first bends to semicircular Metallic rod and connects, four First Line antenna elements intersect the line of symmetry of uniform setting and four First Line antenna elements and overlap, four the first intersection points that bend to semicircular Metallic rod are positioned at first order wire antenna bottom, described metal-loaded body is coated on four the first intersection point places that bend to semicircular Metallic rod,
Second level wire antenna consists of feed coaxial line and four the second wire antenna element, each second wire antenna element bends to semicircular Metallic rod by second, the second cross bar and two the second montants form, each second two ends that bend to semicircular Metallic rod forms the second enclosed construction with the two ends of corresponding second cross bar, in each second enclosed construction, be provided with two the second montants, the upper end of every the second montant and corresponding second bends to semicircular Metallic rod and connects, the lower end of every the second montant connects with the second corresponding cross bar, four the second wire antenna element are intersected the line of symmetry of uniform setting and four the second wire antenna element and are overlapped, four the second intersection points that bend to semicircular Metallic rod are positioned at the top of second level wire antenna, described feed coaxial line consists of screen and heart yearn, screen is coated on heart yearn, described feed coaxial line is vertically arranged on the center of the second wire antenna element, the upper end of the heart yearn of feed coaxial line is connected with metal-loaded body, the height of described twin-stage wire antenna is 163 ㎜, the profile of described metal-loaded body is little semi-spherical shape.
The present invention has following beneficial effect: first order wire antenna and second level wire antenna that ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention adopts have retained circular contour, and on first order wire antenna, be provided with metal-loaded body, compare with butterfly wire antenna with existing Sinuous Antenna, line cone antenna, by the Broadband Matching of metal-loaded body, realized super wide impedance broadband; The present invention adopts the chi structure that bends to semicircular Metallic rod, has improved greatly omnidirectional's characteristic of antenna pattern, and isochrone structural antenna has alleviated the weight of antenna, thereby has improved the wind resistance of antenna;
Ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention can evenly receive the signal of all directions, and applied range is applicable to electromagnetic environment monitor, spectrum measurement, signal and disturbs the field that antenna omnidirectional is had relatively high expectations.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention, Fig. 2 is the vertical view of Fig. 1, Fig. 3 be in embodiment one First Line antenna element about the symmetrical schematic diagram of NN, Fig. 4 be in embodiment one the second wire antenna element about the symmetrical schematic diagram of MM.
Embodiment
Embodiment one: in conjunction with Fig. 1～4 explanation, the ultra-wideband omnidirectional radiation bipolar wire antenna of present embodiment consists of first order wire antenna 1 and second level wire antenna 2, described first order wire antenna 1 be positioned at second level wire antenna 2 directly over, first order wire antenna 1 consists of metal-loaded body 1-1 and four First Line antenna element 1-2, each First Line antenna element 1-2 bends to semicircular Metallic rod 1-2-1 by first, the first cross bar 1-2-2 and two the first montant 1-2-3 form, each first two ends that bend to semicircular Metallic rod 1-2-1 forms the first enclosed construction with the two ends of a corresponding first cross bar 1-2-2, in each first enclosed construction, be provided with two the first montant 1-2-3, the upper end of every the first montant 1-2-3 connects with the first corresponding cross bar 1-2-2, the lower end of every the first montant 1-2-3 and corresponding first bends to semicircular Metallic rod 1-2-1 and connects, four First Line antenna element 1-2 intersect the line of symmetry N of uniform setting and four First Line antenna element 1-2 and overlap, four the first intersection points that bend to semicircular Metallic rod 1-2-1 are positioned at first order wire antenna 1 bottom, described metal-loaded body 1-1 is coated on four the first intersection point places that bend to semicircular Metallic rod 1-2-1,
Second level wire antenna 2 consists of feed coaxial line 2-1 and four the second wire antenna element 2-2, each second wire antenna element 2-2 bends to semicircular Metallic rod 2-2-1 by second, the second cross bar 2-2-2 and two the second montant 2-2-3 form, each second two ends that bend to semicircular Metallic rod 2-2-1 forms the second enclosed construction with the two ends of a corresponding second cross bar 2-2-2, in each second enclosed construction, be provided with two the second montant 2-2-3, the upper end of every the second montant 2-2-3 and corresponding second bends to semicircular Metallic rod 2-2-1 and connects, the lower end of every the second montant 2-2-3 connects with the second corresponding cross bar 2-2-2, four the second wire antenna element 2-2 intersect the line of symmetry M of uniform setting and four the second wire antenna element 2-2 and overlap, four the second intersection points that bend to semicircular Metallic rod 2-2-1 are positioned at the top of second level wire antenna 2, described feed coaxial line 2-1 consists of screen 2-1-1 and heart yearn 2-1-2, screen 2-1-1 is coated on heart yearn 2-1-2, described feed coaxial line 2-1 is vertically arranged on the center of the second wire antenna element 2-2, the upper end of the heart yearn 2-1-2 of feed coaxial line 2-1 is connected with metal-loaded body 1-1.
The operating frequency of ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention is 0.45GHz～28.4GHz, standing-wave ratio VSWR<2, and antenna gain >0dB, input impedance is 50Ohm, directivity is 360 ° of omnidirectional radiations.
Embodiment two: in conjunction with Fig. 1 explanation, the length L of the first cross bar 1-2-2 and the second cross bar 2-2-2 is 160 ㎜ described in present embodiment.So design, increased effective low frequency radiation electrical length of antenna, expanded the lower limit of the lowest operating frequency of antenna.Other composition is identical with execution mode one with annexation.
Embodiment three: in conjunction with Fig. 1 explanation, the height H of twin-stage wire antenna is 163 ㎜ described in present embodiment.So design, the height of first order wire antenna 1 is 80mm, approximates 1/8th of maximum functional wavelength, has good antenna miniaturization effect.Other composition is identical with execution mode one or two with annexation.
Embodiment four: described in present embodiment, the profile of metal-loaded body 1-1 is little semi-spherical shape.So design, can improve antenna especially impedance matching of high band in utmost point broadband, realizes the ultra broadband characteristic of antenna.Other composition is identical with execution mode three with annexation.
Embodiment five: the cylindrical shape of profile of metal-loaded body 1-1 described in present embodiment.So design, can improve antenna especially impedance matching of high band in utmost point broadband, realizes the ultra broadband characteristic of antenna.Other composition is identical with execution mode three with annexation.
Embodiment six: described in present embodiment, the profile of metal-loaded body 1-1 is truncated conical shape.So design, can improve antenna especially impedance matching of high band in utmost point broadband, realizes the ultra broadband characteristic of antenna.Other composition is identical with execution mode three with annexation.
Operation principle:
Ultra-wideband omnidirectional radiation bipolar wire antenna of the present invention can be used in super broad band radio communication system as transmitting or receives electromagnetic element.When as transmitting antenna, signal generator is connected by feed coaxial line 2-1 with antenna, outwards omnidirectional electromagnetic wave; When as reception antenna, the instruments such as vector network analyzer are connected by feed coaxial line 2-1 with antenna, receive the electromagnetic wave of extraneous radiation, obtain its time domain waveform or frequency spectrum, thereby radiation are analyzed to external world.
Claims (2)
1. a ultra-wideband omnidirectional radiation bipolar wire antenna, described twin-stage wire antenna consists of first order wire antenna (1) and second level wire antenna (2), described first order wire antenna (1) be positioned at second level wire antenna (2) directly over, it is characterized in that: first order wire antenna (1) consists of metal-loaded body (1-1) and four First Line antenna elements (1-2), each First Line antenna element (1-2) bends to semicircular Metallic rod (1-2-1) by first, the first cross bar (1-2-2) and two the first montants (1-2-3) form, each first two ends that bend to semicircular Metallic rod (1-2-1) forms the first enclosed construction with the two ends of corresponding first cross bar (1-2-2), in each first enclosed construction, be provided with two the first montants (1-2-3), the upper end of every the first montant (1-2-3) connects with corresponding the first cross bar (1-2-2), the lower end of every the first montant (1-2-3) and corresponding first bends to semicircular Metallic rod (1-2-1) and connects, four First Line antenna elements (1-2) intersect the line of symmetry (N) of uniform setting and four First Line antenna elements (1-2) and overlap, four first intersection points that bend to semicircular Metallic rod (1-2-1) are positioned at first order wire antenna (1) bottom, described metal-loaded body (1-1) is coated on four the first intersection point places that bend to semicircular Metallic rod (1-2-1),
Second level wire antenna (2) consists of feed coaxial line (2-1) and four the second wire antenna element (2-2), each second wire antenna element (2-2) bends to semicircular Metallic rod (2-2-1) by second, the second cross bar (2-2-2) and two the second montants (2-2-3) form, each second two ends that bend to semicircular Metallic rod (2-2-1) forms the second enclosed construction with the two ends of corresponding second cross bar (2-2-2), in each second enclosed construction, be provided with two the second montants (2-2-3), the upper end of every the second montant (2-2-3) and corresponding second bends to semicircular Metallic rod (2-2-1) and connects, the lower end of every the second montant (2-2-3) connects with corresponding the second cross bar (2-2-2), four the second wire antenna element (2-2) are intersected the line of symmetry (M) of uniform setting and four the second wire antenna element (2-2) and are overlapped, four second intersection points that bend to semicircular Metallic rod (2-2-1) are positioned at the top of second level wire antenna (2), described feed coaxial line (2-1) consists of screen (2-1-1) and heart yearn (2-1-2), screen (2-1-1) is coated on heart yearn (2-1-2), described feed coaxial line (2-1) is vertically arranged on the center of the second wire antenna element (2-2), the upper end of the heart yearn (2-1-2) of feed coaxial line (2-1) is connected with metal-loaded body (1-1), the height of described twin-stage wire antenna (H) is 163 ㎜, the profile of described metal-loaded body (1-1) is little semi-spherical shape.
2. ultra-wideband omnidirectional radiation bipolar wire antenna according to claim 1, is characterized in that: the length (L) of described the first cross bar (1-2-2) and the second cross bar (2-2-2) is 160 ㎜.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210087389.9A CN102593580B (en) | 2012-03-29 | 2012-03-29 | Ultra-wideband omnidirectional radiation bipolar wire antenna |
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| CN201210087389.9A CN102593580B (en) | 2012-03-29 | 2012-03-29 | Ultra-wideband omnidirectional radiation bipolar wire antenna |
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| CN102593580B true CN102593580B (en) | 2014-04-02 |
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| CN103825102B (en) * | 2014-03-19 | 2016-10-05 | 哈尔滨工业大学 | A kind of bus is the ultra broadband symmetry biconical antenna of composite curve |
| CN106961007A (en) * | 2017-04-06 | 2017-07-18 | 哈尔滨工业大学 | A kind of small-sized intersection bending omnidirectional ultra-wideband antenna |
| CN112751177B (en) * | 2021-02-02 | 2022-01-25 | 深圳市中天迅通信技术股份有限公司 | High-isolation co-polarized 5G full-band omnidirectional antenna |
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| CN201210513Y (en) * | 2008-03-12 | 2009-03-18 | 王威 | Micro medium wave emission antenna of double rotation surfaces |
| CN101682115A (en) * | 2007-06-12 | 2010-03-24 | 汤姆逊许可公司 | Omnidirectional volumetric antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102110885B (en) * | 2010-12-24 | 2013-08-07 | 哈尔滨工业大学 | Omnidirectionally radiated ultra wideband antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5872546A (en) * | 1995-09-27 | 1999-02-16 | Ntt Mobile Communications Network Inc. | Broadband antenna using a semicircular radiator |
| CN101682115A (en) * | 2007-06-12 | 2010-03-24 | 汤姆逊许可公司 | Omnidirectional volumetric antenna |
| CN201210513Y (en) * | 2008-03-12 | 2009-03-18 | 王威 | Micro medium wave emission antenna of double rotation surfaces |
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| 张鹏宇.超宽带半圆片全向天线的设计.《中国优秀硕士论文电子期刊网》.2012,第36-39页. |
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