Title :
A 0.9–1.5 GHz Microstrip Antenna With Full Polarization Diversity and Frequency Agility
Author :
Ho, Kevin Ming-Jiang ; Rebeiz, Gabriel M.
Author_Institution :
Electr. & Comput. Dept., Univ. of California, San Diego, La Jolla, CA, USA
Abstract :
A microstrip antenna with frequency agility and polarization diversity is presented. Commercially available packaged RF microelectrical-mechanical (MEMS) single-pole double-throw (SPDT) devices are used with a novel feed network to provide four states of polarization control; linear-vertical, linear-horizontal, left-hand circular and right-handed circular. Also, hyper-abrupt silicon junction tuning diodes are used to tune the antenna center frequency from 0.9-1.5 GHz. The microstrip antenna is 1 in x 1 in, and is fabricated on a 4 in x 4 in commercial-grade dielectric laminate. To the authors´ knowledge, this is the first demonstration of an antenna element with four polarization states across a tunable bandwidth of 1.4:1.
Keywords :
circuit tuning; electromagnetic wave polarisation; elemental semiconductors; frequency agility; laminations; microstrip antennas; semiconductor diodes; silicon; commercial grade dielectric lamination; frequency 0.9 GHz to 1.5 GHz; frequency agility; hyper abrupt silicon junction tuning diode; left-hand circular polarization control; linear-horizontal polarization control; linear-vertical polarization control state; microelectricalmechanical device; microstrip antenna; packaged RF MEMS SPDT device; polarization diversity; right-handed circular polarization control; single pole double-throw; tunable bandwidth; Antenna feeds; Micromechanical devices; Microstrip; Microstrip antennas; Polarization; Radio frequency; Microstrip antennas; patch antennas; radio frequency microelectrical-mechanical (MEMS) switches; reconfigurable antennas; tunable circuits and devices;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2307295
