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Switchable wide tuning range bandstop filters for frequency-agile radios

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3 Author(s)
Zhengzheng Wu ; Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA ; Yonghyun Shim ; Rais-Zadeh, M.

This paper reports on micromachined tunable bandstop filters that exhibit an octave frequency tuning range with high stopband rejection and low out-of-band loss. In addition to continuous frequency tuning, stopband switch on-off capability is realized by employing ohmic switches along with tunable capacitors. The fully re-configurable filters in this work are fabricated using a silicon-based integrated passive device technology and are the smallest-size bandstop filters reported in the low SHF range.

Published in:

Electron Devices Meeting (IEDM), 2011 IEEE International

Date of Conference:

5-7 Dec. 2011