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

Published online by Cambridge University Press:  09 December 2015

Reza Bayderkhani ,
Keyvan Forooraghi ,
Emilio Arnieri ,
Bijan Abbasi-Arand  and
Bal S. Virdee
Reza Bayderkhani
Affiliation:
Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Jalale-Ale-Ahmad Highway, Tehran, Iran. Phone: +98 21 8288 3365
Keyvan Forooraghi*
Affiliation:
Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Jalale-Ale-Ahmad Highway, Tehran, Iran. Phone: +98 21 8288 3365
Emilio Arnieri
Affiliation:
Department of Informatics, Modeling, Electronic and System Engineering (DIMES), University of Calabria-Rende (CS), Cosenza, Calabria 87036, Italy
Bijan Abbasi-Arand
Affiliation:
Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Jalale-Ale-Ahmad Highway, Tehran, Iran. Phone: +98 21 8288 3365
Bal S. Virdee
Affiliation:
B. Virdee is Director of Center for Communications Technology, London Metropolitan University, London, UK
*
Corresponding author: K. Forooraghi Email: keyvan_f@modares.ac.ir
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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.

Keywords

Antenna designModeling and measurementsAntennas and propagation for wireless systems
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 2 , March 2017 , pp. 463 - 468
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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