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Discretely tuned RF-MEMS bandstop filter with wide tuning range and uniform high rejection

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5 Author(s)
Llamas-Garro, I. ; Centre Tecnol. de Telecomun. de Catalunya (CTTC), Barcelona, Spain ; Brito-Brito, Z. ; Pradell, L. ; Giacomozzi, F.
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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.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 17 )