A low-loss 2nd order chebychev microwave cavity band pass filter

M. Chose, J. M. Chuma, A. Yahya, O. B. Kobe, I. Ngebani, T. M. Pholele

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

1 Citation (Scopus)


In this paper, the low-loss coaxial probe fed microwave cavity filter is presented. The filter has recently shown great performance improvement in its selectivity and S-parameter response, but the rate of signal to noise ratio due to spurious modes in the pass band is significantly too high to ignore. A 2nd order band pass filter is investigated and its S-parameter response analysed by employing improved dielectric-loaded cavity resonators. The design is based on a low pass Chebyshev prototype at 1 dB insertion loss and 10 dB return loss. An efficient analytical method for reducing the spurious bandwidth of the filter is also devised to improve the filter response. The results shows that the filter, on its single mode operation state, provides increased selectivity and a significant amount of Q values are achieved to reduce the transmission losses.

Original languageEnglish
Title of host publication2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509025800
Publication statusPublished - Dec 5 2016
Event2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016 - Saint-Gilles Les Bains, Réunion
Duration: Oct 10 2016Oct 13 2016


Other2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016
CitySaint-Gilles Les Bains

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation


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