An ultra-wideband microstrip-to-CPW transition

Young Gon Kim, Kang Wook Kim, Young Ki Cho

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

23 Scopus citations

Abstract

A new design for an ultra-wideband microstrip-to-CPW (coplanar waveguide) transition is presented. The proposed transition provides the field and impedance matching between adjacent transmission lines by ground shaping. Clear design guidelines are provided to determine the ground shape and the transition length. As design examples, two transition designs for substrates with low (2.2) and high (10.2) dielectric constants are presented. The fabricated transitions in back-to-back configuration provide insertion loss less than 0.7 dB per transition and return loss better than 10 dB for frequencies from 7 GHz to over 40 GHz and from DC to over 20 GHz, respectively.

Original languageEnglish
Title of host publication2008 IEEE MTT-S International Microwave Symposium Digest, MTT
Pages1079-1082
Number of pages4
DOIs
StatePublished - 2008
Event2008 IEEE MTT-S International Microwave Symposium Digest, MTT - Atlanta, GA, United States
Duration: 15 Jun 200820 Jun 2008

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2008 IEEE MTT-S International Microwave Symposium Digest, MTT
Country/TerritoryUnited States
CityAtlanta, GA
Period15/06/0820/06/08

Keywords

  • Conductor backed coplanar waveguide
  • Coplanar waveguide
  • Transition
  • Ultra-wideband

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