Absorptive bandpass filter with a pair of transmission zeros

Seong Wook Jeong, Juseop Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the design approach for an absorptive bandpass filter with a pair of transmission zeros is introduced. The design is based on using dangling resonators coupled to the output port. One of the unique features of the proposed design approach is that the resonant frequencies of the dangling resonators determine the locations of the transmission zeros. In addition, the design method allows us to relocate the transmission zeros without degrading a reflectionless response at the input port. For verification, we have designed three third-order microstrip line filters centered at 3 GHz having 10 % bandwidth. The filters have been designed to have one transmission zero in the lower stopband and one in the upper stopband. For demonstrating the relocation facility, the filters have been designed to have different sets of transmission zeros. The filters have been fabricated and measured for verifying the presented design method.

Original languageEnglish
Title of host publicationNEWCAS 2020 - 18th IEEE International New Circuits and Systems Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages102-105
Number of pages4
ISBN (Electronic)9781728170442
DOIs
Publication statusPublished - 2020 Jun
Event18th IEEE International New Circuits and Systems Conference, NEWCAS 2020 - Montreal, Canada
Duration: 2020 Jun 162020 Jun 19

Publication series

NameNEWCAS 2020 - 18th IEEE International New Circuits and Systems Conference, Proceedings

Conference

Conference18th IEEE International New Circuits and Systems Conference, NEWCAS 2020
CountryCanada
CityMontreal
Period20/6/1620/6/19

Keywords

  • Absorptive filter
  • Dangling resonator
  • Microstrip line filter
  • Transmission zero

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Instrumentation

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