Title :
A wideband pattern reconfigurable antenna with compact switchable feed structure
Author :
Li, Yue ; Zhang, Zhijun ; Feng, Zhenghe ; Iskander, Magdy F. ; Li, Ruihong
Author_Institution :
Tsinghua Nat. Lab. for Inf. Sci. & Technol., Beijing, China
Abstract :
In order to design wideband pattern reconfigurable antenna, a compact switchable CPW-to-slotline transition feed structure is proposed in this paper. In the slotline feed, one slot of CPW is used as feed line, and the other slot serves as open stub for matching. No other structure is involved for the transition from CPW to slotline. Base on the switchable feed structure, one CPW mode and two slot modes are switched by two PIN diodes for reconfigurable pattern. The proposed antenna is simulated and the critical parameter is studied. The -10 dB bandwidth of all the modes can cover 2.5 GHz (2.9 GHz-5.4 GHz), with the gain better than 2.8 dBi.
Keywords :
UHF antennas; antenna feeds; broadband antennas; coplanar waveguides; p-i-n diodes; slot antennas; slot lines; PIN diodes; bandwidth 2.5 GHz; compact switchable CPW-to-slotline transition feed structure; open stub; slot modes; wideband pattern reconfigurable antenna; Antenna feeds; Antenna radiation patterns; Bandwidth; Broadband antennas; Communication switching; Coplanar waveguides; Mobile antennas; Slot antennas; Slotline; Switches;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5525116
