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Ultra Compact Inline E-Plane Waveguide Bandpass Filters Using Cross Coupling
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.
2016 (English)In: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 64, no 8, 2561-2571 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents novel ultracompact waveguide bandpass filters that exhibit pseudoelliptic responses with the ability to place transmission zeros on both sides of the passband to form sharp rolloffs. The filters contain E-plane extracted pole sections (EPSs) cascaded with cross-coupled filtering blocks. Compactness is achieved by the use of evanescent mode sections and closer arranged resonators modified to shrink in size. The filters containing nonresonating nodes are designed by means of the generalized coupling coefficients' extraction procedure for the cross-coupled filtering blocks and EPSs. We illustrate the performance of the proposed structures through the design examples of third-and fourth-order filters with center frequencies of 9.2 and 10 GHz, respectively. The sizes of the proposed structures suitable for fabricating using the low-cost E-plane waveguide technology are 38% smaller than ones of the E-plane extracted pole filter of the same order.

Place, publisher, year, edition, pages
IEEE, 2016. Vol. 64, no 8, 2561-2571 p.
Keyword [en]
E-plane filters, extracted pole filters, generalized coupling coefficients (GCCs), inline filters, waveguide filters
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194291DOI: 10.1109/TMTT.2016.2578329ISI: 000384142200021Scopus ID: 2-s2.0-84976314175OAI: oai:DiVA.org:kth-194291DiVA: diva2:1039920
Note

QC 20161025

Available from: 2016-10-25 Created: 2016-10-21 Last updated: 2016-10-25Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
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  • 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
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  • text
  • asciidoc
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