Title :
A 2-Bit Ka-Band RF MEMS Frequency Tunable Slot Antenna
Author :
Van Caekenberghe, Koen ; Sarabandi, Kamal
Author_Institution :
Thales Air Syst., Hengelo
fDate :
6/30/1905 12:00:00 AM
Abstract :
A 2-bit Ka-band RF MEMS frequency tunable slot antenna is disclosed. It is demonstrated on a fused silica wafer using a micro-fabrication process requiring six masks. The return loss and gain for each of the four states are measured using a probe station based setup for on-wafer antenna measurements. The antenna has a measured tunable bandwidth of 6.8 GHz. The average measured gain is 1.74 dBi, and the average measured cross-polarization is -9.22 dBi. The extracted switching time is 5.19 mus for a drive voltage of 45 V.
Keywords :
electromagnetic wave polarisation; micromechanical devices; microwave antennas; slot antennas; software radio; wafer level packaging; Ka-band RF MEMS; electromagnetic polarization; frequency 6.8 GHz; frequency tunable slot antenna; microfabrication process; on-wafer antenna measurement; probe station; silica wafer packaging; software-defined radio; time 5.19 mus; voltage 45 V; RF MEMS switches; slot antennas;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2008.921390
