Title :
RF MEMS millimeter-wave switchable bandpass filter
Author :
Chan, King Yuk Eric ; Ramer, Rodica ; Guo, Y. Jay
Author_Institution :
ICT Centre, CSIRO, Marsfield, NSW, Australia
Abstract :
A switchable bandpass filter that can operate between 60 GHz and E-band spectrum, capable of providing good channel isolation is presented. A RF MEMS SPDT is designed for the switching element between the two bands. Back-to-back cantilever switches are used for maximum isolation. New circuit models for the inductively coupled inverters and short circuit stubs are proposed. Measurement results show good correlation to our simulations. Better than 15 dB return loss and 5 dB insertion loss in both 60 GHz and Eband are measured. With the introduction of transmission zero, rejection between the two operational bands is better than 20 dB.
Keywords :
band-pass filters; cantilevers; invertors; microswitches; millimetre wave filters; E-band spectrum; RF MEMS SPDT; RF MEMS millimeter-wave switchable bandpass filter; back-to-back cantilever switches; channel isolation; circuit models; frequency 60 GHz; inductively coupled inverters; insertion loss; loss 15 dB; loss 5 dB; return loss; short circuit stubs; switching element; transmission zero; Band-pass filters; Filtering theory; Integrated circuit modeling; Micromechanical devices; Microwave filters; Radio frequency; Switches; RF MEMS; bandpass filters; millimeter-wave;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616711
