Title :
A wideband L-probe fed patch antenna for pattern reconfiguration
Author :
Yang, Steven Shing-Lung ; Luk, Kwai-Man
Author_Institution :
Dept. of Electr. Eng., City Univ. of Hong Kong, China
Abstract :
An L-probe coupled circular patch antenna with four metallic shorting posts is demonstrated. The TM01 conical and the TM11 broadside modes could be excited separately by two sets of L-shaped probes at the same frequency range. For a tested antenna operated at 1.85GHz, the measured bandwidth (SWR<2) is 24%, and the isolation between the two input ports is 28dB. The simulated gains of the conical and broadside modes are 4dBi and 10dBi respectively. With suitable switching feed networks, the antenna can be reconfigurable in radiation pattern.
Keywords :
antenna feeds; antenna radiation patterns; antenna testing; broadband antennas; conical antennas; microstrip antenna arrays; 1.85 GHz; TM01 conical mode; TM11 broadside mode; coupled circular patch antenna; metallic shorting posts; reconfigurable radiation pattern; simulated gains; switching feed networks; tested antenna; wideband L-probe fed patch antenna; Antenna measurements; Antenna radiation patterns; Bandwidth; Broadband antennas; Frequency; Impedance; Patch antennas; Permittivity measurement; Probes; Resonance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552078
