Title :
An X-band reconfigurable planar dipole antenna
Author :
Anagnostou, Dimitrios E. ; Zheng, Guizhen ; Barbin, Silvio E. ; Chryssomallis, Michael T. ; Papapolymerou, John ; Christodoulou, Christos G.
Author_Institution :
New Mexico Univ., Albuquerque, NM, USA
Abstract :
In this work, ohmic contact series cantilever RF MEMS switches are used to reconfigure a planar dipole antenna in order to exhibit the same radiation pattern and good impedance matching at any frequency in the X-band range. The antenna is fabricated on a silicon substrate and the desired reconfigurability is achieved with four switches, each one shifting the resonant frequency by 900 MHz approximately. For the successful integration of the system, the antenna and the switches are fabricated from the same materials. Issues regarding the biasing of the switches and the antenna feed are resolved herein.
Keywords :
antenna accessories; antenna radiation patterns; dipole antennas; microswitches; microwave antennas; microwave switches; RF MEMS switches; X-band reconfigurable planar dipole antenna; impedance matching; ohmic contact series cantilever switches; radiation pattern; silicon substrate; Antenna feeds; Antenna radiation patterns; Broadband antennas; Dielectric substrates; Dipole antennas; Ohmic contacts; Probes; Radiofrequency microelectromechanical systems; Resonant frequency; Switches;
Conference_Titel :
Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on
Print_ISBN :
0-7803-9341-4
DOI :
10.1109/IMOC.2005.1580082
