Analysis of an integrated lens antenna fed by SIW slot array using a hybrid MoM–PO method

Bayderkhani, Reza and Forooraghi, Keyvan and Arnieri, Emilio and Abbasi-Arand, Bijan and Virdee, Bal Singh (2015) Analysis of an integrated lens antenna fed by SIW slot array using a hybrid MoM–PO method. International Journal of Microwave and Wireless Technologies. pp. 1-6. ISSN 1759-0787

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Abstract

This paper presents a very fast and highly efficient full-wave hybrid method for analyzing an integrated dielectric lens antenna (ILA) fed by multilayered substrate-integrated waveguide (SIW) slot antenna/array. The feeding antenna structure is modeled as a stacked parallel-plate waveguide with metallic posts, coupling, and radiating slots. Physical optics method in conjunction with three-dimensional ray tracing technique is employed to analyze the effect of the dielectric lens on the SIW feeding slots. Fields in the SIW structure are computed by considering the Dyadic Green's function expressed as an expansion of vectorial cylindrical eigenfunctions and taking into account scattering at the conducting posts. Slots are modeled with equivalent magnetic currents expressed as a sum of domain basis functions. By imposing continuity of the tangential components of the fields an integral equation is obtained that is solved with the application of method-of-moments. In order to validate the proposed technique, a hemispherical ILA fed by a double-layered SIW cavity which is backed with slot antenna is analyzed. Excellent agreement is obtained with HFSS software together with significant improvement in computational time and memory requirements.

Item Type: Article
Uncontrolled Keywords: Antenna design; Modeling and measurements; Antennas and propagation for wireless systems
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Related URLs:
Depositing User: Bal Virdee
Date Deposited: 08 Mar 2016 13:27
Last Modified: 10 Oct 2016 15:20
URI: http://repository.londonmet.ac.uk/id/eprint/930

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