Title :
Wideband Circularly Polarized Stacked Microstrip Antennas
Author :
Nasimuddin ; Esselle, Karu P. ; Verma, A.K.
fDate :
6/29/1905 12:00:00 AM
Abstract :
A simple technique is developed to improve the axial ratio (AR)-bandwidth and quality of circularly polarized stacked microstrip antennas (CPSMAs) using a new C-type single feed. The proposed antenna has been optimized and fabricated, and the computed results agree very well with measurements. The antenna has a 3 dB AR bandwidth of 13.5%, gain is more than 7.5 dBi over the 3 dB AR bandwidth and the 10 dB return-loss bandwidth is 21%. The proposed feed optimization technique is useful for rapid design of circular polarized stacked microstrip antennas.
Keywords :
Antenna feeds; Antennas and propagation; Bandwidth; Broadband antennas; Design optimization; Frequency; Impedance; Microstrip antennas; Patch antennas; Polarization; Axial ratio (AR); circular polarization (CP); coaxial feed; microstrip antenna; optimization; patch antenna; stacked;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.890749
