New Surface-Wave-Like Mode on CPWs of Infinite Width and Its Role in Explaining the Leakage Cancellation Effect

Mikio TSUJI  Hiroshi SHIGESAWA  Arthur A. OLINER  

IEICE TRANSACTIONS on Electronics   Vol.E82-C    No.1    pp.133-140
Publication Date: 1999/01/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Microwave and Millimeter Wave Technology
coplanar waveguide,  leakage effect,  spectral gap,  surface-wave-like mode,  cancellation effect,  

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The presence of a new surface-wave-like mode on CPWs of infinite width produces a complex transition region at the onset of leakage, involving the unusual simultaneous combination of a coupling region and a spectral gap. An examination of this region leads to a clear physical explanation of why sharp minima occur in the leakage behavior.