Title :
A comparison of microstrip patch ESPAR array and uniformly-illuminated array performance
Author :
Luther, Justin J. ; Ebadi, Siamak ; Gong, Xun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
A thorough comparison of a 3-element microstrip patch ESPAR and traditionally-fed, uniform illumination phased array antennas operating at 1 GHz is presented. The ESPAR is compared to two arrays employing phase shifters, exhibiting both the close-proximity ESPAR spacing, and a third array with half-wavelength spacing. Performance characteristics including radiation pattern trends, directivity, and efficiency are discussed.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; microstrip antenna arrays; antenna radiation pattern; close-proximity ESPAR spacing; electronically steerable parasitic array radiator antennas; frequency 1 GHz; half-wavelength spacing; microstrip patch ESPAR array; phase shifters; three-element microstrip patch ESPAR; uniform illumination phased array antennas; uniformly-illuminated array performance; Antenna radiation patterns; Arrays; Couplings; Microstrip; Microstrip antenna arrays; Microstrip antennas; Phase shifters; Beam steering; microstrip antennas; phased arrays;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348575
