Surface-wave leakage properties of coplanar strips

Yu De Lin*, Jyh Wen Sheen, Chi-Yang Chang

*Corresponding author for this work

Research output: Contribution to journalConference article

6 Scopus citations


Propagation characteristics of coplanar strips (CPS), balanced transmission line widely used in uniplanar circuits, is investigated with the spectral domain analysis. Besides the conventional coplanar strips mode, an extra surface-wave-like dominant mode can be supported by coplanar strips in lower frequency region. The bound modes evolve into a complex leaky mode in higher frequency region in a similar way to those of coplanar waveguide (CPW). No sharp and deep minima in leakage constants are found after the onset of the leakage, as in the coplanar waveguide case. Furthermore, the physical complex mode disappears in wider strip cases.

Original languageEnglish
Pages (from-to)229-232
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
StatePublished - 1 Jan 1995
EventProceedings of the 1995 IEEE MTT-S International Microwave Symposium. Part 1 (of 3) - Orlando, FL, USA
Duration: 16 May 199520 May 1995

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