Design of scale model of plate-shaped absorber in a wide frequency range

doi:10.1088/1674-1056/27/4/044101

Abstract In order to design the scale model in a wide frequency range, a method based on the reflective loss is proposed according to the high-frequency approximation algorithm, and an example of designing the scale model of a plate-shaped absorber is given in this paper. In the example, the frequency of the full-size measurement ranges from 2.0 GHz to 2.4 GHz, the thickness of the full-size absorber is 1 mm and the scale ratio is 1/5. A two-layer scale absorber is obtained by the proposed method. The thickness values of the bottom and top layer are 0.4 mm and 0.5 mm, respectively. Furthermore, the scattering properties of a plate model and an SLICY model are studied by FEKO to verify the effectiveness of the designed scale absorber. Compared with the corresponding values from the theoretical scale model, the average values of the absolute deviations in 10 GHz~12 GHz are 0.53 dBm², 0.65 dBm², 0.76 dBm² for the plate model and 0.20 dBm², 0.95 dBm², 0.77 dBm² for the SLICY model while the incident angles are 0°, 30°, and 60°, respectively. These deviations fall within the Radar cross section (RCS) measurement tolerance. Thus, the work in this paper has important theoretical and practical significance.

Keywords: scale model plate-shaped absorber wide frequency range RCS

Received: 18 October 2017
Revised: 07 December 2017
Accepted manuscript online:

PACS:	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	81.70.Ex	(Nondestructive testing: electromagnetic testing, eddy-current testing)
	81.05.Qk	(Reinforced polymers and polymer-based composites)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61601299 and 11404213), the Shanghai Municipal Science and Technology Commission, China (Grant Nos. 17210730900 and 15ZR1439600), and the Defense Industrial Technology, China (Grant No. B2120132001).

Corresponding Authors: Li-Ming Yuan
E-mail: lming_y@163.com

Cite this article:

Li-Ming Yuan(袁黎明), Yong-Gang Xu(许勇刚), Wei Gao(高伟), Fei Dai(戴飞), Qi-Lin Wu(吴琪琳) Design of scale model of plate-shaped absorber in a wide frequency range 2018 Chin. Phys. B 27 044101

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