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

fYear

2005

fDate

25-28 July 2005

Firstpage

654

Lastpage

656

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on

Print_ISBN

0-7803-9341-4

Type

conf

DOI

10.1109/IMOC.2005.1580082

Filename

1580082