Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers

Gabriel Goncalves Machado; Robert Cahill; Vincent Fusco; Gareth Conway

Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers

Gabriel Goncalves Machado, Robert Cahill, Vincent Fusco, Gareth Conway

Research output: Contribution to conference › Paper › peer-review

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Abstract

This work reports the design and fabrication process used to create a new class of ultrathin inkjet printed microwave absorbers. The arrangement is composed of a lossy Frequency Selective Surface (FSS) placed above a ground plane to form a resistive High Impedance Surface (HIS). The thickness of the three absorbers investigated range from λ/58 to λ/223. These extremely thin structures present design and manufacturing challenges to achieve the desired energy absorption (> 90%) over a useable (−10 dB) bandwidth. Numerical optimisation of the surface resistance and topology of the FSS pattern gives values of 7% (λ/58) and 1.5% (λ/223) for absorbers working at normal incidence. The digital settings used in a desktop inkjet printer to obtain the required surface resistance value of the metallised FSS patterns are obtained by curve fitting numerical simulations to experimentally obtained transmission coefficients.

Original language	English
Number of pages	6
Publication status	Accepted - 14 Aug 2018
Event	The Loughborough Antennas & Propagation Conference 2018 - Burleigh Court Hotel, Loughborough, United Kingdom Duration: 12 Nov 2018 → 13 Nov 2018 Conference number: 2018 https://events.theiet.org/lapc/index.cfm

Conference

Conference	The Loughborough Antennas & Propagation Conference 2018
Abbreviated title	LAPC
Country/Territory	United Kingdom
City	Loughborough
Period	12/11/2018 → 13/11/2018
Internet address	https://events.theiet.org/lapc/index.cfm

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Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers
Copyright 2018 IEEE. This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 819 KBLicence: Unspecified

Stealth technologies based on thin microwave FSS absorbers
Author: Gonçalves Machado, G., Jul 2021
Supervisor: Cahill, R. (Supervisor), Fusco, V. (Supervisor) & Conway, G. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy

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abstract = "This work reports the design and fabrication process used to create a new class of ultrathin inkjet printed microwave absorbers. The arrangement is composed of a lossy Frequency Selective Surface (FSS) placed above a ground plane to form a resistive High Impedance Surface (HIS). The thickness of the three absorbers investigated range from λ/58 to λ/223. These extremely thin structures present design and manufacturing challenges to achieve the desired energy absorption (> 90%) over a useable (−10 dB) bandwidth. Numerical optimisation of the surface resistance and topology of the FSS pattern gives values of 7% (λ/58) and 1.5% (λ/223) for absorbers working at normal incidence. The digital settings used in a desktop inkjet printer to obtain the required surface resistance value of the metallised FSS patterns are obtained by curve fitting numerical simulations to experimentally obtained transmission coefficients.",

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year = "2018",

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day = "14",

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T1 - Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers

AU - Goncalves Machado, Gabriel

AU - Cahill, Robert

AU - Fusco, Vincent

AU - Conway, Gareth

N1 - Conference code: 2018

PY - 2018/8/14

Y1 - 2018/8/14

N2 - This work reports the design and fabrication process used to create a new class of ultrathin inkjet printed microwave absorbers. The arrangement is composed of a lossy Frequency Selective Surface (FSS) placed above a ground plane to form a resistive High Impedance Surface (HIS). The thickness of the three absorbers investigated range from λ/58 to λ/223. These extremely thin structures present design and manufacturing challenges to achieve the desired energy absorption (> 90%) over a useable (−10 dB) bandwidth. Numerical optimisation of the surface resistance and topology of the FSS pattern gives values of 7% (λ/58) and 1.5% (λ/223) for absorbers working at normal incidence. The digital settings used in a desktop inkjet printer to obtain the required surface resistance value of the metallised FSS patterns are obtained by curve fitting numerical simulations to experimentally obtained transmission coefficients.

AB - This work reports the design and fabrication process used to create a new class of ultrathin inkjet printed microwave absorbers. The arrangement is composed of a lossy Frequency Selective Surface (FSS) placed above a ground plane to form a resistive High Impedance Surface (HIS). The thickness of the three absorbers investigated range from λ/58 to λ/223. These extremely thin structures present design and manufacturing challenges to achieve the desired energy absorption (> 90%) over a useable (−10 dB) bandwidth. Numerical optimisation of the surface resistance and topology of the FSS pattern gives values of 7% (λ/58) and 1.5% (λ/223) for absorbers working at normal incidence. The digital settings used in a desktop inkjet printer to obtain the required surface resistance value of the metallised FSS patterns are obtained by curve fitting numerical simulations to experimentally obtained transmission coefficients.

M3 - Paper

T2 - The Loughborough Antennas & Propagation Conference 2018

Y2 - 12 November 2018 through 13 November 2018

ER -

Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers

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Student Theses

Stealth technologies based on thin microwave FSS absorbers

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