A new coupling effect due to the presence of an air gap between a microstrip leaky-wave antenna and a half space

A coupling phenomenon is presented for the situation of a microstrip leaky‐wave antenna (LWA) in the presence of a half space with an air gap situated in between the antenna and the half space. Theoretical analysis of the dispersion characteristic is performed using the spectral‐domain method. The r...

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Bibliographic Details
Published in:Microwave and optical technology letters 1998-10, Vol.19 (3), p.200-203
Main Authors: McMillan, Lee O., Shuley, Nicholas V.
Format: Article
Language:English
Subjects:
air gaps
coupling
leakage
leaky waves
microstrip
Online Access:Get full text
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Summary:A coupling phenomenon is presented for the situation of a microstrip leaky‐wave antenna (LWA) in the presence of a half space with an air gap situated in between the antenna and the half space. Theoretical analysis of the dispersion characteristic is performed using the spectral‐domain method. The results clearly show that two modes couple as the air gap thickness is changed. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 200–203, 1998.
ISSN:0895-2477
1098-2760
DOI:10.1002/(SICI)1098-2760(19981020)19:3<200::AID-MOP8>3.0.CO;2-P