Title :
Wideband circularly-polarized patch antenna
Author :
Bian, Lei ; Guo, Y.X. ; Ong, L.C. ; Shi, X.Q.
Author_Institution :
Nanjing Univ. of Sci. & Technol., Jiangsu, China
Abstract :
In this paper, a novel wideband circularly-polarized patch antenna is presented. The patch antenna is excited by a broadband feed network having a 10-dB return loss bandwidth of 86% and a consistent 90° (± 3°) phase difference between two output ports over a wideband of 76%. It is found that the antenna can deliver a measured impedance bandwidth of 79.4% for SWR < 2, 2-dB and 3-dB axial-ratio simulated bandwidths of 56% and 63.8%, respectively, and the simulated bandwidth of 59.3% for the gain > 3dBi.
Keywords :
broadband antennas; broadband networks; microstrip antennas; polarisation; 10 dB; 3 dB; 56 percent; 59.3 percent; 63.8 percent; 79.4 percent; 86 percent; axial-ratio simulated bandwidths; broadband feed network; impedance bandwidth; output ports; phase difference; wideband circularly-polarized patch antenna; Bandwidth; Broadband antennas; Feeds; Frequency; Impedance; Microstrip antennas; Patch antennas; Polarization; Radar antennas; Wideband;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606392
