Title :
Discretely tuned RF-MEMS bandstop filter with wide tuning range and uniform high rejection
Author :
Llamas-Garro, I. ; Brito-Brito, Z. ; Pradell, Lluis ; Giacomozzi, Flavio ; Colpo, Sabrina
Author_Institution :
Centre Tecnol. de Telecomun. de Catalunya (CTTC), Barcelona, Spain
Abstract :
A new bandstop filter is presented providing a two-state discrete wide tuning range from 20 to 30 GHz with the same high rejection level of 36 dB. In the design, metal-insulator-metal capacitors are placed on one end of the resonators and on the other end capacitive micro-electromechanical systems (MEMS) switches are used to discretely tune the centre reject band of the filter.
Keywords :
MIM devices; band-stop filters; capacitors; micromechanical resonators; microswitches; microwave filters; microwave resonators; capacitive MEMS switches; capacitive microelectromechanical systems switches; discretely tuned RF-MEMS bandstop filter; filter centre reject band; frequency 20 GHz to 30 GHz; metal-insulator-metal capacitors; resonators; uniform high rejection level;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.2270
