Title :
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
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;
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
DOI :
10.1109/APEMC.2008.4559984
