Journal
IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION
Volume 152, Issue 1, Pages 35-42Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/ip-map:20040726
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A rigorous full-wave approach based on the method of lines (MoL) is presented to analyse the propagation characteristics of substrate integrated waveguides (SIWs), in which a generalised matrix eigenvalue equation is derived instead of the conventional transcend equation, greatly improving the computing efficiency. The use of an efficient Z-transform absorbing boundary condition (Z-ABC) further improved the accuracy of the calculated propagation constants. Finally, two empirical equations are proposed for the propagation constants of SIWs, which gives a simple but efficient tool in designing substrate integrated waveguide components.
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