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Three-Dimensional Electromagnetic Field Calculation for Microwave Holography

Mayuko KOGA, Ryota TAKENAKA, Hayato TSUCHIYA¹⁾, Ryo MANABE, Naofumi IWAMA¹⁾, Shuji YAMAMOTO²⁾ and Soichiro YAMAGUCHI²⁾

University of Hyogo, Himeji 671-2280, Japan

1)

National Institute for Fusion Science, Toki 509-5292, Japan

2)

Kansai University, Suita 564-8680, Japan

(Received 21 August 2020 / Accepted 4 March 2021 / Published 7 May 2021)

Abstract

The lens-less technique of microwave holography is expected to provide information of three-dimensional structures of plasma with a wide field of view. From the complex amplitudes of waves, which are observed on a single planar array of antennas, we will be able to obtain an imaging of the three-dimensional object. With a geometry of back-scattering observation, the feasibility is examined with a numerical tool of electromagnetic analysis on dielectric objects. With respect to the variety of the dielectric constant and shape of object, it is shown that useful information can be acquired in regarding the complex amplitude distribution at planar detector.

Copyright (c) 2021 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

microwave holography, lens-less imaging, reflectometer, electromagnetic field calculation

DOI: 10.1585/pfr.16.1402063

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