CAD models of losses for semi-ellipsoidal and semi-circular cylindrical CPW

Payal Majumdar*, A. K. Verma

*Corresponding author for this work

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


The paper addresses a CAD oriented closed-form expressions for the losses based on stopping distance for semi-ellipsoidal coplanar waveguide (SECPW) and semi-circular cylindrical coplanar waveguide (SCCPW) on a finite-thickness dielectric substrate. The analysis of the structures has been done using conformal mapping technique. The expressions are simple and accurate for microwave circuit designs and are applicable to both thin and thick conductors. Comparisons with 3D- EM simulators like HFSS and CST are presented to validate the expressions between 1 GHz - 60 GHz. The average deviation of the model against the comparison is 2.48 %.

Original languageEnglish
Title of host publicationProceedings of the Asia-Pacific Microwave Conference 2011 (APMC)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)9780858259744
Publication statusPublished - 2011
Externally publishedYes
EventAsia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia
Duration: 5 Dec 20118 Dec 2011


OtherAsia-Pacific Microwave Conference, APMC 2011
CityMelbourne, VIC


  • CAD models
  • Loss
  • Semi - Circular Cylindrical CPW
  • Semi - Ellipsoidal CPW
  • Stopping distance


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