Dielectric powder loaded coaxial-cavity filters

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

In this paper we demonstrate the use of low-loss dielectric powders in the design and fabrication of RF filters. Initially, several different powders are tested for their RF performance - in particular their relative dielectric permittivity and loss tangent. Then, based on the information obtained in this way, the best performance powder is used to design a 5-pole Chebyshev filter operating at a centre frequency of 779 MHz, with a bandwidth of 17 MHz. Upon fabrication of the filter housing, the filter cavities are filled with the powder. Compaction of the powders is achieved in a systematic way and has resulted in stable performance.

Original languageEnglish
Title of host publication2017 IEEE Radio and Wireless Symposium, RWS 2017
PublisherIEEE Computer Society
Pages117-120
Number of pages4
ISBN (Electronic)9781509034451
DOIs
Publication statusPublished - 23 Mar 2017
Externally publishedYes
Event2017 IEEE Radio and Wireless Symposium, RWS 2017 - Phoenix, United States
Duration: 15 Jan 201718 Jan 2017

Publication series

NameIEEE Radio and Wireless Symposium, RWS
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2017 IEEE Radio and Wireless Symposium, RWS 2017
Country/TerritoryUnited States
CityPhoenix
Period15/01/1718/01/17

Keywords

  • ceramic powders
  • Coaxial resonators
  • filters

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