New static external coupling structure for k-band frequency-tunable constant-bandwidth waveguide filter with wide tuning range

Boyoung Lee, Seunggoo Nam, Juseop Lee

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

    Abstract

    In this paper, we present a new K-band frequency tunable constant-bandwidth filter with no tunable coupling structures. For the purpose of designing such filter, we have developed novel static coupling structures for TM011 mode cylindrical cavity resonators that can result in a constant bandwidth. For verification, we have designed, fabricated and measured a 2nd-order cavity resonator filter utilizing TM011 mode. The measurement shows that the center frequency can be tuned from 21.5 GHz to 23.3 GHz having the constant bandwidth of 250 MHz.

    Original languageEnglish
    Title of host publication2021 International Conference on Electronics, Information, and Communication, ICEIC 2021
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728191614
    DOIs
    Publication statusPublished - 2021 Jan 31
    Event2021 International Conference on Electronics, Information, and Communication, ICEIC 2021 - Jeju, Korea, Republic of
    Duration: 2021 Jan 312021 Feb 3

    Publication series

    Name2021 International Conference on Electronics, Information, and Communication, ICEIC 2021

    Conference

    Conference2021 International Conference on Electronics, Information, and Communication, ICEIC 2021
    Country/TerritoryKorea, Republic of
    CityJeju
    Period21/1/3121/2/3

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIT) (No. NRF-2018R1A2B6006095. This work was also supported by the Korea Aerospace Research Institute (KARI) (No. FR21H00) Fig. 2. (a) Conventional external coupling structure, (b) External coupling structure which has trench at the center, (c) Proposed external coupling structure (a = 0.4, b = 1.31, c = 9, d = 14, e = 6, f = 1.5, g = 2, h = 7.78, i = 0.07, j = 5.36 (Unit : mm)).

    Publisher Copyright:
    © 2021 IEEE.

    Keywords

    • Cavity resonaot filter
    • Constant bandwidth
    • Coupling structure

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Networks and Communications
    • Information Systems
    • Information Systems and Management
    • Electrical and Electronic Engineering
    • Instrumentation

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