Journal of Applied Physics

Broadband metamaterial absorber in the C–Ku bands by exploiting FeCo–C

T T. X. Duong (Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) D D. K. Tung (Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) T T. S. Pham (Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) H H. A. Nguyen (Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) B B. S. Tung (Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) N N. P. Hai (Air Defence-Air Force Academy 4 , Hanoi,) V V. T. H. Hanh (Department of Physics, Thai Nguyen University of Education 5 , 20 Luong Ngoc Quyen, Thai Nguyen,) T T. Q. Dat (Department of Physics, Le Quy Don Technical University 6 , Hanoi,) B B. X. Khuyen (Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,) V V. D. Lam (Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,)

Abstract

In this research, we have designed a hybrid metamaterial absorber (HMA) based magnetic material from C to the Ku-band. The magnetic material was prepared by the ball milling method with differences in the mass ratio of the FeCo alloy to C. The HMA structure consists of four layers: FeCo–C, metallic structure (two punched-in rings with four L-shape in the edges), dielectric (FR-4), and continuous metallic layer. The widest absorption spectrum of structure based FeCo–C (75%C) in a frequency range of 6.9–16.8 GHz with absorption exceeding 90%. The absorption mechanism has also been carefully analyzed through the distribution of surface current and power loss density. These findings may advance the design of devices leveraging metamaterials, including applications in stealth radar technology, electromagnetic shielding for health and safety, and reduction of electromagnetic interference for high-performance electronic and communication systems.

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Article Details

Volume / Issue Vol. 137, Issue 6
Published February 14, 2025
ISSN 0021-8979
Publisher American Institute of Physics

Journal Info

Journal of Applied Physics

American Institute of Physics
ISSN: 0021-8979 Physical Sciences

Authors (10)

T

T. X. Duong

Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

D

D. K. Tung

Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

T

T. S. Pham

Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

H

H. A. Nguyen

Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

B

B. S. Tung

Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

N

N. P. Hai

Air Defence-Air Force Academy 4 , Hanoi,

V

V. T. H. Hanh

Department of Physics, Thai Nguyen University of Education 5 , 20 Luong Ngoc Quyen, Thai Nguyen,

T

T. Q. Dat

Department of Physics, Le Quy Don Technical University 6 , Hanoi,

B

B. X. Khuyen

Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

V

V. D. Lam

Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi,

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