A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material Constant

Youji KOTSUKA; Kazuo SHIMODAIRA

doi:10.1093/ietele/e89-c.1.2

A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material Constant

Youji KOTSUKA, Kazuo SHIMODAIRA

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Based on the concept of Equivalent Transformation Method of Material Constant (ETMMC), a thin and light weight EM-wave absorber is newly proposed. It becomes possible to merge both the competing characteristics of changing the matching frequency toward a higher frequency region by means of punching out small holes in the magnetic absorber and of changing the matching frequency toward a lower frequency region by attaching periodical conductive patterns to the surface of it. First, the ETMMC idea is introduced in this paper. The detailed matching characteristics of the present absorber are investigated based on FDTD analysis. The matching mechanism is clarified from input admittance chart viewpoints. The matching characteristics can be changed from 2.4 GHz to above 6.0 GHz using carbonyl iron with the thickness of 2 mm and improved below -20 dB.

Publication: IEICE TRANSACTIONS on Electronics Vol.E89-C No.1 pp.2-8

Publication Date: 2006/01/01

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Online ISSN: 1745-1353

DOI: 10.1093/ietele/e89-c.1.2

Type of Manuscript: Special Section INVITED PAPER (Special Section on Near-Field and Far-Field Electromagnetic Absorption and Shielding and Related Technologies)

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Youji KOTSUKA, Kazuo SHIMODAIRA, "A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material Constant" in IEICE TRANSACTIONS on Electronics, vol. E89-C, no. 1, pp. 2-8, January 2006, doi: 10.1093/ietele/e89-c.1.2.
Abstract: Based on the concept of Equivalent Transformation Method of Material Constant (ETMMC), a thin and light weight EM-wave absorber is newly proposed. It becomes possible to merge both the competing characteristics of changing the matching frequency toward a higher frequency region by means of punching out small holes in the magnetic absorber and of changing the matching frequency toward a lower frequency region by attaching periodical conductive patterns to the surface of it. First, the ETMMC idea is introduced in this paper. The detailed matching characteristics of the present absorber are investigated based on FDTD analysis. The matching mechanism is clarified from input admittance chart viewpoints. The matching characteristics can be changed from 2.4 GHz to above 6.0 GHz using carbonyl iron with the thickness of 2 mm and improved below -20 dB.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e89-c.1.2/_p

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@ARTICLE{e89-c_1_2,
author={Youji KOTSUKA, Kazuo SHIMODAIRA, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material Constant},
year={2006},
volume={E89-C},
number={1},
pages={2-8},
abstract={Based on the concept of Equivalent Transformation Method of Material Constant (ETMMC), a thin and light weight EM-wave absorber is newly proposed. It becomes possible to merge both the competing characteristics of changing the matching frequency toward a higher frequency region by means of punching out small holes in the magnetic absorber and of changing the matching frequency toward a lower frequency region by attaching periodical conductive patterns to the surface of it. First, the ETMMC idea is introduced in this paper. The detailed matching characteristics of the present absorber are investigated based on FDTD analysis. The matching mechanism is clarified from input admittance chart viewpoints. The matching characteristics can be changed from 2.4 GHz to above 6.0 GHz using carbonyl iron with the thickness of 2 mm and improved below -20 dB.},
keywords={},
doi={10.1093/ietele/e89-c.1.2},
ISSN={1745-1353},
month={January},}

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TY - JOUR
TI - A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material Constant
T2 - IEICE TRANSACTIONS on Electronics
SP - 2
EP - 8
AU - Youji KOTSUKA
AU - Kazuo SHIMODAIRA
PY - 2006
DO - 10.1093/ietele/e89-c.1.2
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E89-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2006
AB - Based on the concept of Equivalent Transformation Method of Material Constant (ETMMC), a thin and light weight EM-wave absorber is newly proposed. It becomes possible to merge both the competing characteristics of changing the matching frequency toward a higher frequency region by means of punching out small holes in the magnetic absorber and of changing the matching frequency toward a lower frequency region by attaching periodical conductive patterns to the surface of it. First, the ETMMC idea is introduced in this paper. The detailed matching characteristics of the present absorber are investigated based on FDTD analysis. The matching mechanism is clarified from input admittance chart viewpoints. The matching characteristics can be changed from 2.4 GHz to above 6.0 GHz using carbonyl iron with the thickness of 2 mm and improved below -20 dB.
ER -