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A compact tunable bandpass filter with high selectivity and low insertion loss using novel CRLH cell
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
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2013 (English)In: Journal Electromagnetic Waves and Applications, ISSN 0920-5071, E-ISSN 1569-3937, Vol. 27, no 12, 1466-1472 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents the realization of a tunable bandpass filter with high selectivity and low insertion loss using one tunable composite right/left-handed (CRLH) cell. The tunable CRLH cell is proposed with varactor diodes loaded both on series and shut circuits. Two shut circuits are designed to form the needed paralleled C-R and L-L, by which two transmission zeros beside the passband are obtained at the same time. Each varactor diode is shunted by a lumped capacitor for lower insertion loss. The filter is tuned by only one DC bias, which results in easily control and compact size. The measured results agree well with the simulated results, and a tunable range of the center frequency from 1.75 to 2.25GHz is achieved in measurement with the insertion loss less than 2.5dB.

Place, publisher, year, edition, pages
2013. Vol. 27, no 12, 1466-1472 p.
Keyword [en]
Handed Transmission-Line, Phase-Shifter, Resonators, Microstrip, Bandwidth, Design
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-126876DOI: 10.1080/09205071.2013.812941ISI: 000322213700003Scopus ID: 2-s2.0-84881270743OAI: oai:DiVA.org:kth-126876DiVA: diva2:642797
Note

QC 20140617

Available from: 2013-08-23 Created: 2013-08-22 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf