An antenna having a "suspended stripline" structure with two metal plates encircling a dielectric film is disclosed. In this structure, a channel is made for a feeder of a slot with the end of a central conductor of the line penetrating a cavity whose thickness is approximately equal to that of the channel....http://www.google.es/patents/US5337065?utm_source=gb-gplus-sharePatente US5337065 - Slot hyperfrequency antenna with a structure of small thickness
Slot hyperfrequency antenna with a structure of small thickness
