Title :
Switchable wide tuning range bandstop filters for frequency-agile radios
Author :
Wu, Zhengzheng ; Shim, Yonghyun ; Rais-Zadeh, Mina
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
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.
Keywords :
band-stop filters; capacitors; elemental semiconductors; frequency agility; micromachining; silicon; switches; Si; frequency-agile radio; fully reconfigurable filter; integrated passive device technology; low out-of-band loss; micromachined tunable bandstop filter; octave frequency tuning range; ohmic switch; stopband rejection; stopband switch on-off capability; switchable wide tuning range bandstop filter; tunable capacitor; Band pass filters; Insertion loss; Micromechanical devices; Radio frequency; Resonator filters; Switches; Tuning;
Conference_Titel :
Electron Devices Meeting (IEDM), 2011 IEEE International
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4577-0506-9
Electronic_ISBN :
0163-1918
DOI :
10.1109/IEDM.2011.6131592
