Title :
A broadband circular polarization patch antenna with differential-feeding
Author :
Zhang, Xiaobing ; Xia, M.Y.
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China
Abstract :
A broadband circular polarization patch antenna, differential-fed by a pair of folded plate, is proposed. The use of the two patches can broaden the bandwidth and the differential-feeding can provide a good symmetrical pattern. The impedance bandwidth (VSWR<;2) of the proposed antenna is 38.5%. The axis ratio (AR) at the centre frequency of 2 GHz is 2.3 dB in measurement. Besides, the radiation pattern, both E-plane and H-plane, are symmetrical respectively.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; microstrip antennas; broadband circular polarization patch antenna; centre frequency axis ratio; differential feeding; frequency 2 GHz; impedance bandwidth; radiation pattern;
Conference_Titel :
Microwave Technology and Computational Electromagnetics, 2009. ICMTCE. International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-84919-140-1
DOI :
10.1049/cp.2009.1268
