V-band bandpass filter with continuously variable centre frequency

Author

• Dimitra Psychogiou, Swiss Federal Institute of Technology Zurich
• Dimitrios Peroulis, Birck Nanotechnology Center, Purdue UniversityFollow
• Yunjia Li, Swiss Federal Institute of Technology Zurich
• Christian Hafner, Swiss Federal Institute of Technology Zurich

Abstract

A second-order bandpass filter (BPF) with continuously variable centre frequency tuning is presented in this article. Evanescent-mode cavity resonators with variable capacitive loadings are used as tuning elements. Tuning is achieved by means of micro-electromechanical-systems (MEMS)-actuated highly conductive rigid fingers that feature an out-of-plane deflection. For an applied DC bias voltage between 0 and 27.3 V the centre frequency of the BPF is tuned from 67.4 to 63.2 GHz (4.2 GHz). For this frequency band, the fractional bandwidth (FBW) varies between 8.3 and 3.4% and the in-band insertion loss between 1.45 and 5 dB.

Keywords

MILLIMETER-WAVE FILTERS; CMOS TECHNOLOGY; MEMS; SWITCHES; DESIGN

DOI

10.1049/iet-map.2012.0722

Date of this Version

6-5-2013

Recommended Citation

Psychogiou, Dimitra; Peroulis, Dimitrios; Li, Yunjia; and Hafner, Christian, "V-band bandpass filter with continuously variable centre frequency" (2013). Birck and NCN Publications. Paper 1414.
http://dx.doi.org/10.1049/iet-map.2012.0722