Modeling of radiated emission caused by coaxial-to-microstrip transition

Po Jui Li, Chiu Chih Chou, Tzong Lin Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The transition of coaxial line to microstrip line will generate unexpected radiated emissions, which degrades the electromagnetic compatibility of the system. Existing circuit models in the literature for this radiation phenomenon are either inaccurate or incomplete. In this work, we proposed a physically-meaningful three-element circuit model for the coaxial-to-microstrip transition, as well as formula to estimate the circuit parameters when the whole structure is electrically short (in this paper, under 1 GHz). Using this model and its analytic equations, the level of total radiated power of the transition can be estimated. To verify the accuracy of the model's prediction, full-wave simulations are performed using a commercial solver. The results calculated by the proposed model follows the same trend as the simulated results, especially at high frequency bands. Besides, it is found that the radiated power resulting from the transition is roughly proportional to omega to the power of six at low frequencies.

Original languageEnglish
Title of host publicationProceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages245-249
Number of pages5
ISBN (Electronic)9781728105635
DOIs
StatePublished - Sep 2019
Event21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 - Granada, Spain
Duration: 9 Sep 201913 Sep 2019

Publication series

NameProceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019

Conference

Conference21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Country/TerritorySpain
CityGranada
Period9/09/1913/09/19

Keywords

  • Cable radiation
  • Coaxial-to-microstrip
  • Total radiated power

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