Low-frequency broadband multilayer microwave metamaterial absorber based on resistive frequency selective surfaces

Hao Wen Lan; Zhi Ming Li; Xiao Long Weng; Lun Qi; Kai Li; Zhang Rong Zhou; Xue Yu Wu; Mei Bi; Mei Bi

doi:10.1364/AO.474350

Applied Optics
Vol. 62,
Issue 4,
pp. 1096-1102
(2023)
•https://doi.org/10.1364/AO.474350

Low-frequency broadband multilayer microwave metamaterial absorber based on resistive frequency selective surfaces

Hao Wen Lan, Zhi Ming Li, Xiao Long Weng, Lun Qi, Kai Li, Zhang Rong Zhou, Xue Yu Wu, and Mei Bi

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Hao Wen Lan, Zhi Ming Li, Xiao Long Weng, Lun Qi, Kai Li, Zhang Rong Zhou, Xue Yu Wu, and Mei Bi, "Low-frequency broadband multilayer microwave metamaterial absorber based on resistive frequency selective surfaces," Appl. Opt. 62, 1096-1102 (2023)

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Abstract

Herein, a low-frequency broadband multilayer metamaterial absorber (MMA) based on resistive frequency selective surfaces (RFSSs) is proposed, which consists of a three-layer RFSS, three-layer polymethacrylimide (PMI) foam substrates, and a copper film. The proposed absorber has the advantages of ultra-broadband absorption with absorptivity more than 90% ranging from 1.91 to 20.78 GHz, which covers the entire S, C, X, and Ku bands with the thickness of ${0.102}\;\lambda {\rm L}$ (where $\lambda {\rm L}$ corresponds to the wavelength of the lowest operating frequency). The absorption performance can keep good stability in a wide angular range for both TE and TM modes. Moreover, a prototype of the proposed MMA is fabricated and experimentally measured to demonstrate its excellent performance. The experimental results show excellent consistency with numerical simulations.

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No data were generated or analyzed in the presented research.

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Parameter	Value	Parameter	Value
$h_{1}$	4.0 mm	$b_{2}$	2.5 mm
$h_{2}$	6.0 mm	$g_{1}$	0.5 mm
$h_{3}$	5.0 mm	$g_{2}$	0.5 mm
$t_{d}$	0.175 mm	$g_{3}$	0.4 mm
p	20.0 mm	$g_{4}$	1.5 mm
w	4.0 mm	$d_{1}$	19.0 mm
s	4.7 mm	$d_{2}$	13.2 mm
l	15.6 mm	$R_{s 1}$	34 Ω/sq
a	19.2 mm	$R_{s 2}$	47 Ω/sq
$b_{1}$	10.4 mm	$R_{s 3}$	185 Ω/sq

Absorber	Employed Method	Frequency Range (GHz)	Fractional Bandwidth (%)
Ref. [35]	Resistive sheet	2.68–15.9	142
Ref. [50]	Resistive sheet	2–17	157
Ref. [27]	Lumped resistor	1.0–12.9	171.2
Ref. [30]	Lumped resistor	2.55–10.07	119
Ref. [31]	Resistive sheet	7–37.4	137
Ref. [29]	Resistive film	2.4–17.63	152.1
Ref. [37]	Resistive sheet	3.3–16	132
Ref. [36]	Lumped resistor	6.7–20.58	101.7
Ref. [28]	Resistive sheet	4.20–40.87	162.7
This work	Resistive sheet	1.98–19.56	163.2

Parameter	Value	Parameter	Value
$h_{1}$	4.0 mm	$b_{2}$	2.5 mm
$h_{2}$	6.0 mm	$g_{1}$	0.5 mm
$h_{3}$	5.0 mm	$g_{2}$	0.5 mm
$t_{d}$	0.175 mm	$g_{3}$	0.4 mm
p	20.0 mm	$g_{4}$	1.5 mm
w	4.0 mm	$d_{1}$	19.0 mm
s	4.7 mm	$d_{2}$	13.2 mm
l	15.6 mm	$R_{s 1}$	34 Ω/sq
a	19.2 mm	$R_{s 2}$	47 Ω/sq
$b_{1}$	10.4 mm	$R_{s 3}$	185 Ω/sq

Absorber	Employed Method	Frequency Range (GHz)	Fractional Bandwidth (%)
Ref. [35]	Resistive sheet	2.68–15.9	142
Ref. [50]	Resistive sheet	2–17	157
Ref. [27]	Lumped resistor	1.0–12.9	171.2
Ref. [30]	Lumped resistor	2.55–10.07	119
Ref. [31]	Resistive sheet	7–37.4	137
Ref. [29]	Resistive film	2.4–17.63	152.1
Ref. [37]	Resistive sheet	3.3–16	132
Ref. [36]	Lumped resistor	6.7–20.58	101.7
Ref. [28]	Resistive sheet	4.20–40.87	162.7
This work	Resistive sheet	1.98–19.56	163.2

Abstract

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Tables (2)

Equations (2)

Applied Optics