IDEAS home Printed from https://ideas.repec.org/a/taf/tewaxx/v32y2018i9p1069-1078.html
   My bibliography  Save this article

High isolation and miniaturized quad-channel diplexer using short stub-loaded resonators and distributed coupling feeding line

Author

Listed:
  • Qun Li
  • Yonghong Zhang
  • Lili Qu
  • Yong Fan

Abstract

This paper presents a high isolation and miniaturized microstrip quad-channel diplexer. The quad-channel diplexer consists of a distributed coupling feeding line, two coupling feeding lines, and two pairs of short stub-loaded resonators combined by the pseudo-interdigital structure. Based on the even–odd mode method, the resonant modes of the short stub-loaded resonator are investigated. The mode splitting is created when a pair of short stub-loaded resonators are combined by a pseudo-interdigital structure. Each mode of the short stub-loaded resonator is split into two modes to form a two-order channel filter. The center frequencies of the quad-channel diplexer can be adjusted independently, while the bandwidths of channel filters can be tuned by the external quality factor and the coupling coefficient. Taking advantage of the distributed coupling feeding line, no extra matching network is needed and the loading effect is very small. For demonstration, a quad-channel diplexer working at 2.4, 3.15, 4.4, 5.8 GHz with better than 40 dB isolation is presented. The measured results agree well with the full-wave simulated results.

Suggested Citation

  • Qun Li & Yonghong Zhang & Lili Qu & Yong Fan, 2018. "High isolation and miniaturized quad-channel diplexer using short stub-loaded resonators and distributed coupling feeding line," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 32(9), pages 1069-1078, June.
    • Handle: RePEc:taf:tewaxx:v:32:y:2018:i:9:p:1069-1078
    DOI: 10.1080/09205071.2017.1415824
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/09205071.2017.1415824
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/09205071.2017.1415824?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:tewaxx:v:32:y:2018:i:9:p:1069-1078. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/tewa .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.