Title :
Research on a novel millimeter-wave linear MEMS array antenna based on Hadamard matrix
Author :
Shu-yuan Shi ; Yong-sheng Dai
Author_Institution :
Nanjing Univ. of Sci. & Technol., Xiaolingwei, China
Abstract :
In this paper, a new angular super-resolution technique called Phase Weighting Super-resolution Method (PWSM) based on Hadamard matrix is proposed, which is used in conventional phased array radar for improving angle resolution. The phase shifting necessary to steer the main beam of the aperture coupled micro-strip antenna is achieved by 0-π MEMS phase shifters, which are integrated in a hybrid fashion between the antenna and feed network. The results of the measured pattern are consistent with the theoretical calculation results.
Keywords :
Hadamard matrices; antenna feeds; antenna radiation patterns; aperture antennas; linear antenna arrays; micromechanical devices; microstrip antenna arrays; millimetre wave antennas; phase shifters; Hadamard matrix; MEMS phase shifters; PWSM method; angular super-resolution technique; aperture coupled microstrip antenna; beam steering; conventional phased array radar; feed network; measured pattern; millimeter-wave linear MEMS array antenna; phase shifting; phase weighting super-resolution method; Antenna arrays; Antenna measurements; Arrays; Feeds; Micromechanical devices; Phase shifters; Switches;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
