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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2014-12-17
An Improved Predesign Procedure for Shaped-Beam Reflectarrays
By
Jian-Feng Yu,

    Dr. Jian-Feng Yu

    National Laboratory of Science and Technology on Antennas and Microwaves

    Xidian University

    China

    Homepage

Lei Chen,

    Dr. Lei Chen

    School of Electronic and Information Engineering

    Xi'an Technological University

    China

    Homepage

Jing Yang,

    Dr. Jing Yang

    Science and Technology on Antenna and Microwave Laboratory

    Xidian University

    China

    Homepage

Xiao-Wei Shi

    Professor Xiao-Wei Shi

    School of Electronics Engineering

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 40, 119-127, 2014
doi:10.2528/PIERM14090306 | Google Scholar

Abstract
This article describes an improved design procedure for shaped-beam reflectarrays, which is advanced mainly in accuracy and concision. Specifically, the excitation has been computed by a new approach named local simulation instead of mathematical modeling, which demonstrates more advantage in precision. The intersection approach has been applied to optimization, and it is improved by introducing a new multi-stage strategy into the synthesis process to avoid local minima. Moreover, the phase-only optimization, calculation of the reflection phase data table and the simulation verification processes are combined as a co-simulation procedure by VBScript (Visual Basic Script). This procedure is very beneficial to design reflectarrays with efficiency. As an example, a reflectarray consists of 621 dual-loop elements is optimized, and a good sectored-cosecant squared beam result is obtained.
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Citation
Jian-Feng Yu, Lei Chen, Jing Yang, and Xiao-Wei Shi, "An Improved Predesign Procedure for Shaped-Beam Reflectarrays," Progress In Electromagnetics Research M, Vol. 40, 119-127, 2014.
doi:10.2528/PIERM14090306
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