A 0.9-1.5 GHz Microstrip Antenna With Full Polarization Diversity and Frequency Agility

作者：Ho Kevin Ming Jiang^*; Rebeiz Gabriel M

来源：IEEE Transactions on Antennas and Propagation, 2014, 62(5): 2398-2406.

DOI：10.1109/TAP.2014.2307295

• Microstrip antennas
• patch antennas
• reconfigurable antennas
• radio frequency microelectrical-mechanical (MEMS) switches
• tunable circuits and devices

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.

• 出版日期2014-5