Title :
A 25 watt RF MEM-tuned VHF bandpass filter
Author :
Hall, C.A. ; Luetzelschwab, R.C. ; Streeter, R.D. ; Vanpatten, J.H.
Author_Institution :
Raytheon, Fort Wayne, IN, USA
Abstract :
A VHF RF bandpass filter capable of a 25 watt input power, tuned through the use of Microelectromechanical (MEM) microrelays, is presented. The calculated filter through-put loss is less than 1 dB at any frequency of operation. The filter tunes a 3:1 frequency range using 14 frequency steps. The performance of a newly developed MEM microrelay for high power RF use is discussed. The development of the microrelay model and the use of a CAE tool in the filter development are presented.
Keywords :
VHF filters; band-pass filters; circuit tuning; microrelays; power filters; 25 W; CAE model; RF MEM-tuned VHF bandpass filter; high power microrelay; Band pass filters; Circuit optimization; Diodes; Micromechanical devices; Microrelays; Power filters; RF signals; Radio frequency; Radio transmitters; Tuning;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210986
