Title :
A Broadband Patch Antenna With Tripolarization Using Quasi-Cross-Slot and Capacitive Coupling Feed
Author :
Yi Zhang ; Kunpeng Wei ; Zhijun Zhang ; Zhenghe Feng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
This letter presents a novel design of patch antenna with quasi-cross-slot and capacitive coupling feeding to achieve tripolarization with high isolation over a wide bandwidth. Two degenerate TM11 modes and one TM01 mode of the circular patch antenna are generated to realize three orthogonal polarizations. By using the proposed quasi-cross-slots, good measured isolations (better than 20 dB) were obtained. The measured impedance bandwidths of the proposed antenna ports are 2.13-2.58, 2.13-2.43, and 2.13-2.58 GHz, respectively. Details of the proposed design and measured results are presented and discussed.
Keywords :
antenna feeds; broadband antennas; microstrip antennas; antenna ports; broadband patch antenna; capacitive coupling feed; circular patch antenna; frequency 2.13 GHz to 2.43 GHz; frequency 2.13 GHz to 2.58 GHz; gain 20 dB; orthogonal polarizations; quasi cross slot; tripolarization; Cross slot; patch antenna; polarization diversity; tripolarization;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2271782
