Constant-absolute-bandwidth frequency-tunable half-mode SIW filter containing no tunable coupling structures

Seunggoo Nam, Boyoung Lee, Ju Seop Lee

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

7 Citations (Scopus)

Abstract

A new half-mode frequency-tunable SIW (substrate-integrated waveguide) bandpass filter with a constant absolute bandwidth is presented in this paper. For achieving the constant bandwidth, we have developed new external and internal coupling structures capable of exhibiting specified coupling values over the frequency tuning range of the presented filter. Hence, the presented filter employs no tuning components in the coupling structures and this avoids the insertion loss increase due to tuning components. For verification, a second-order filter has been designed, fabricated, and measured. The filter has the insertion loss smaller than 2.0 dB over the frequency tuning range from 1.85 GHz to 2.3 GHz. The bandwidth slightly varies from 136 MHz to 142 MHz.

Original languageEnglish
Title of host publication2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages267-270
Number of pages4
ISBN (Electronic)9781509063604
DOIs
Publication statusPublished - 2017 Oct 4
Event2017 IEEE MTT-S International Microwave Symposium, IMS 2017 - Honololu, United States
Duration: 2017 Jun 42017 Jun 9

Other

Other2017 IEEE MTT-S International Microwave Symposium, IMS 2017
CountryUnited States
CityHonololu
Period17/6/417/6/9

Keywords

  • Absolute bandwidth
  • Bandpass filter
  • Half-mode
  • SIW
  • Tunable filter

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Constant-absolute-bandwidth frequency-tunable half-mode SIW filter containing no tunable coupling structures'. Together they form a unique fingerprint.

Cite this