A high performance C-band FBAR filter

Zhixin Zhang, Yao Lu, Wei Pang, Daihua Zhang, Hao Zhang

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Abstract

In this paper a RF band pass filter in C-band based on film bulk acoustic resonator (FBAR) technology is developed. The measured insertion loss is less than 2.0 dB at the center frequency (5.2GHz) of the filter, and the signal attenuation near the pass band of the filter is greater than 50 dB. The measurement data are in good agreement with the design employing three dimensional electromagnetic simulation techniques. A method to move the transmission zeros of the FBAR filter is proposed by adding a capacitor element between the two shunt branches of the filter. Using the technique, an FBAR filter chip can be configured to meet different rejection specifications potentially.

Original languageEnglish
Title of host publication2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
Pages923-926
Number of pages4
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: 5 Nov 20138 Nov 2013

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Conference

Conference2013 3rd Asia-Pacific Microwave Conference, APMC 2013
Country/TerritoryKorea, Republic of
CitySeoul
Period5/11/138/11/13

Keywords

  • C-band
  • FBAR
  • RF band pass filter

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Zhang, Z., Lu, Y., Pang, W., Zhang, D., & Zhang, H. (2013). A high performance C-band FBAR filter. In 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013 (pp. 923-926). Article 6694976 (Asia-Pacific Microwave Conference Proceedings, APMC). https://doi.org/10.1109/APMC.2013.6694976