Title :
A compact reconfigurable antenna with pattern diversity
Author :
Li, Hui ; He, Sailing
Author_Institution :
Dept. of Electromagn. Eng., R. Inst. of Technol. (KTH), Stockholm, Sweden
Abstract :
A compact pattern reconfigurable antenna is proposed, in which the beam pattern can be switched between a monopole like radiation and a broadside radiation. Two layers and three PIN diodes are employed in the antenna. A single coaxial feed is utilized to excite both monopole mode and PIFA mode at a center frequency of 2.62 GHz. The total efficiencies of the antenna are 72% and 95% for monopole and PIFA modes, respectively. The envelope correlation coefficient calculated from the two patterns is 0.28, indicating good diversity performance of the antenna in wireless communications.
Keywords :
antenna arrays; antenna radiation patterns; monopole antennas; p-i-n diodes; PIN diodes; beam pattern; broadside radiation; coaxial feed; compact pattern reconfigurable antenna; efficiency 72 percent; efficiency 95 percent; frequency 2.62 GHz; monopole like radiation; wireless communications; Antenna feeds; Antenna radiation patterns; PIN photodiodes; Patch antennas; Resonant frequency; Switches;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348776
