Terahertz Input-Reflectionless Waveguide Filter

Juseop Lee, Han Yu Tao, Sanggu Lee, N. Scott Barker

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

2 Citations (Scopus)


This paper presents, for the first time, the design of a terahertz waveguide input-reflectionless filter operating at WR3.4 band. The filter has filtering and matching sections, and they are combined at the input port. The filter has been designed to have three resonators in the filtering section and one resonator in the matching section. The normalized coupling values producing the return loss larger than 13 dB in both the passband and the stopband have been derived for designing the filter. For demonstration, the filter was designed based on the target center frequency and fractional bandwidth set to 275 GHz and 3 %, respectively. The measured return loss is larger than 10 dB over the entire WR3.4 band from 220 GHz to 330 GHz.

Original languageEnglish
Title of host publication2021 IEEE MTT-S International Microwave Symposium, IMS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781665403078
Publication statusPublished - 2021 Jun 7
Event2021 IEEE MTT-S International Microwave Symposium, IMS 2021 - Virtual, Atlanta, United States
Duration: 2021 Jun 72021 Jun 25

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X


Conference2021 IEEE MTT-S International Microwave Symposium, IMS 2021
Country/TerritoryUnited States
CityVirtual, Atlanta

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported in part by the National Research Foundation of Korea (NRF) under Grant NRF-2018R1A2B6006095.

Publisher Copyright:
© 2021 IEEE.


  • filter
  • reflectionless
  • resonator
  • terahertz
  • topology
  • waveguide

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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