Title :
Design and testing of a lightweight, planar microwave lens
Author :
Proudfoot, P. ; Mehalic, M. ; Terzouli, A.
Author_Institution :
Air Force Inst. of Technol., Dayton, OH, USA
Abstract :
The authors outline the design, fabrication, and testing of a planar microwave lens. The lens consists of two planar arrays of lightweight printed circuit antennas interconnected by microstrip lines whose length varies as a function of position on the lens. Microwave energy is coupled from one face of the lens to the other by means of a slot etched in the ground plane. At 8.0 GHz the lens is ten wavelengths across, is less than 1/8 in thick, and weighs less than 4 lbs. The lens can scan a beam over a +or-30 degrees region in both the azimuth and elevation planes. The overall lens efficiency is 50%, a 25% increase over previous lens designs.<>
Keywords :
antenna testing; lens antennas; microstrip antennas; microwave antenna arrays; 50 percent; 8 GHz; SHF; design; elevation planes; fabrication; ground plane; lens efficiency; lightweight printed circuit antennas; microstrip lines; microwave energy; planar arrays; planar microwave lens; slot; testing; Circuit testing; Coupling circuits; Fabrication; Integrated circuit interconnections; Lenses; Microstrip antenna arrays; Microstrip antennas; Optical design; Planar arrays; Printed circuits;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221893
