Title :
Multi-mode microstrip antennas for reconfigurable aperture
Author :
Sor, J. ; Qian, Y. ; Chang, M.F. ; Itoh, T.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A multi-mode reconfigurable antenna structure is explored. The unique phased array system utilizes three different microstrip antennas: the quasi-Yagi endfire antenna for wideband endfire coverage, patch antennas for moderate gain at broadside, and high gain frequency scanned leaky-wave antennas. The aperture configuration can be controlled through a combination of DSP and MEMS switches. The proposed structure exhibits good isolation between the different aperture ports. The radiation patterns in each reconfigured mode of operation do not show any noticeable degradation.
Keywords :
Yagi antenna arrays; antenna radiation patterns; leaky wave antennas; micromechanical devices; microstrip antenna arrays; radar antennas; switches; DSP; MEMS switches; aperture ports isolation; broadside gain; communications systems; frequency scanned leaky-wave antennas; high gain; multi-mode microstrip antennas; patch antennas; phased array system; quasi-Yagi endfire antenna; radar systems; radiation patterns; reconfigurable aperture; wideband endfire coverage; Aperture antennas; Broadband antennas; Digital signal processing; Frequency; Leaky wave antennas; Microstrip antenna arrays; Microstrip antennas; Microswitches; Patch antennas; Phased arrays;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873825
