A novel dual-frequency RF MEMS phase shifter

Author

Tang, Kai ; Wu, Yu-ming ; Wu, Qun ; Wang, Hai-Long ; Zhu, Huai-cheng ; Li, Le-Wei

Author_Institution

Dept. of Electron.&Commun. Eng., Harbin Inst. of Technol., Harbin

fYear

2008

fDate

19-23 May 2008

Firstpage

750

Lastpage

753

Abstract

The operating principle of the RF MEMS phase shifter is described. A novel design concept for dual-frequency RF MEMS phase shifter is proposed. By using network theory and CST microwave studio simulation tool, the proposed RF MEMS phase shifter is modelled. Simulation results show that the proposed model has the return loss less than -10dB and the insertion loss more than -2dB in two operating frequencies, both of which are more than 1 GHz bandwidth. For one RF MEMS phase shifter, both 180-degree and 90-degree phase shift are realized.

Keywords

UHF phase shifters; circuit theory; micromechanical devices; CST microwave studio simulation tool; RF MEMS phase shifter; dual frequency phase shifter; network theory; Bridge circuits; Capacitance; Coplanar waveguides; Frequency; Insertion loss; Micromechanical devices; Phase shifters; Radiofrequency microelectromechanical systems; Transmission line matrix methods; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008. Asia-Pacific Symposium on

Conference_Location

Singapore

Print_ISBN

978-981-08-0629-3

Electronic_ISBN

978-981-08-0629-3

Type

conf

DOI

10.1109/APEMC.2008.4559984

Filename

4559984