An electronically tunable microstrip bandpass filter using thin-film Barium-Strontium-Titanate (BST) varactors

Jayesh Nath; Dipankar Ghosh; Jon Paul Maria; Angus I. Kingon; Wael Fathelbab; Paul D. Franzon; Michael B. Steer

doi:10.1109/TMTT.2005.854196

An electronically tunable microstrip bandpass filter using thin-film Barium-Strontium-Titanate (BST) varactors

Jayesh Nath, Dipankar Ghosh, Jon Paul Maria, Angus I. Kingon, Wael Fathelbab, Paul D. Franzon, Michael B. Steer

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

244 Scopus citations

Abstract

A tunable third-order combline bandpass filter using thin-film barium-strontium-titanate varactors and fabricated on a sapphire substrate is reported. Application of 0-200-V bias varied the center frequency of the filter from 2.44 to 2.88 GHz (16% tuning) while achieving a 1-dB bandwidth of 400 MHz. The insertion loss varied from 5.1 dB at zero bias to 3.3 dB at full bias, while the return loss exceeded 13 dB over the range. The third-order intercept of the filter was found to be 41 dBm.

Original language	English (US)
Pages (from-to)	2707-2712
Number of pages	6
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	53
Issue number	9
DOIs	https://doi.org/10.1109/TMTT.2005.854196
State	Published - Sep 2005

All Science Journal Classification (ASJC) codes

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TMTT.2005.854196

Cite this

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title = "An electronically tunable microstrip bandpass filter using thin-film Barium-Strontium-Titanate (BST) varactors",

abstract = "A tunable third-order combline bandpass filter using thin-film barium-strontium-titanate varactors and fabricated on a sapphire substrate is reported. Application of 0-200-V bias varied the center frequency of the filter from 2.44 to 2.88 GHz (16% tuning) while achieving a 1-dB bandwidth of 400 MHz. The insertion loss varied from 5.1 dB at zero bias to 3.3 dB at full bias, while the return loss exceeded 13 dB over the range. The third-order intercept of the filter was found to be 41 dBm.",

author = "Jayesh Nath and Dipankar Ghosh and Maria, {Jon Paul} and Kingon, {Angus I.} and Wael Fathelbab and Franzon, {Paul D.} and Steer, {Michael B.}",

note = "Funding Information: Manuscript received January 20, 2005; revised May 22, 2005. This work was supported by the U.S. Army Research Office as a Multi-Disciplinary University Research Initiative on Multifunctional Adaptive Radio Radar and Sensors under Grant DAAD19-01-1-0496.",

year = "2005",

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doi = "10.1109/TMTT.2005.854196",

language = "English (US)",

volume = "53",

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journal = "IEEE Transactions on Microwave Theory and Techniques",

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AU - Nath, Jayesh

AU - Ghosh, Dipankar

AU - Maria, Jon Paul

AU - Kingon, Angus I.

AU - Fathelbab, Wael

AU - Franzon, Paul D.

AU - Steer, Michael B.

N1 - Funding Information: Manuscript received January 20, 2005; revised May 22, 2005. This work was supported by the U.S. Army Research Office as a Multi-Disciplinary University Research Initiative on Multifunctional Adaptive Radio Radar and Sensors under Grant DAAD19-01-1-0496.

PY - 2005/9

Y1 - 2005/9

N2 - A tunable third-order combline bandpass filter using thin-film barium-strontium-titanate varactors and fabricated on a sapphire substrate is reported. Application of 0-200-V bias varied the center frequency of the filter from 2.44 to 2.88 GHz (16% tuning) while achieving a 1-dB bandwidth of 400 MHz. The insertion loss varied from 5.1 dB at zero bias to 3.3 dB at full bias, while the return loss exceeded 13 dB over the range. The third-order intercept of the filter was found to be 41 dBm.

AB - A tunable third-order combline bandpass filter using thin-film barium-strontium-titanate varactors and fabricated on a sapphire substrate is reported. Application of 0-200-V bias varied the center frequency of the filter from 2.44 to 2.88 GHz (16% tuning) while achieving a 1-dB bandwidth of 400 MHz. The insertion loss varied from 5.1 dB at zero bias to 3.3 dB at full bias, while the return loss exceeded 13 dB over the range. The third-order intercept of the filter was found to be 41 dBm.

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An electronically tunable microstrip bandpass filter using thin-film Barium-Strontium-Titanate (BST) varactors

Abstract

All Science Journal Classification (ASJC) codes

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