A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell

Authors

  • Mohamed Elhefnawy 1) Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea 2) Department of Electrical Engineering October 6 University, Egypt
  • KyoungHun Kim Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea
  • Tae-Hyeon Kim Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea
  • Wang-Sang Lee Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea

DOI:

https://doi.org/10.13052/2024.ACES.J.390508

Keywords:

Absorption, metamaterial absorber (MMA), metasurface absorber, polarization-insensitive (PI), transmission line (TL) model

Abstract

This paper introduces a thin, polarization-insensitive (PI), and multiple-band electromagnetic metamaterial absorber (MMA). The unit cell of the MMA consists of a slotted octagonal metallic patch printed on an FR4 dielectric substrate, backed by a grounded metallic layer, and notably does not incorporate resistive lumped elements. The proposed MMA exhibits measured absorption, exceeding 75% for normal incidence, across frequency bands ranging from 2.22–2.38 GHz, 6.86–7.24 GHz, 11.68–12.71 GHz, 14.1–14.8 GHz, and 15.47–16 GHz. The proposed MMA unit cell has dimensions of 0.21λ0 × 0.21λ0 and a thickness of 0.001λ0, where λ0 represents the wavelength corresponding to the lowest frequency at 2.22 GHz. The performance of the proposed MMA is simulated using CST Microwave Studio and MATLAB, and subsequently validated through experimental measurements.

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Author Biographies

Mohamed Elhefnawy, 1) Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea 2) Department of Electrical Engineering October 6 University, Egypt

Mohamed Elhefnawy received B.S. and M.S. Degrees in Electronics and Communications Engineering from Tanta University and the Arab Academy for Science & Technology, Egypt, in 1999 and 2005, respectively. He received a Ph.D. degree in Communications Engineering from USM University, Malaysia, in 2010. Since 2023, he has been working as a senior researcher in the Department of Electronic Engineering at Gyeongsang National University (GNU) in Jinju, South Korea. He is currently on leave from the Department of Electrical Engineering at the Faculty of Engineering, October 6 University, Egypt. He has a strong academic background that includes electromagnetic field theory, wave propagation, antenna theory, and RF/Microwave engineering. His research interests include the design and development of antennas and RF/microwave components.

KyoungHun Kim, Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea

Kyoung Hun Kim received B.S. Degree in Electronics Engineering from Gyeongsang National University (GNU), Jinju, South Korea, in 2023. He is currently an M.S. student in the Department of Electronic Engineering at Gyeongsang National University (GNU) in Jinju, South Korea. His research interests include antenna design and the development of wireless power transfer systems.

Tae-Hyeon Kim, Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea

Tae-Hyeon Kim received B.S. Degree in Electronics Engineering from Gyeongsang National University (GNU), Jinju, South Korea, in 2023. He is currently an M.S. student in the Department of Electronic Engineering at Gyeongsang National University (GNU) in Jinju, South Korea. His research interests include the design and development of antennas and measurement and improve electrical performance of aircraft radome.

Wang-Sang Lee, Department of Electronic Engineering Gyeongsang National University, Jinju, 52828, South Korea

Wang-Sang Lee received the B.S. degree from Soongsil University, Seoul, South Korea, in 2004, and the M.S. and Ph.D. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2006 and 2013, respectively. From 2006 to 2010, he was with the Electromagnetic Compatibility Technology Center, Digital Industry Division, Korea Testing Laboratory (KTL), Ansan-si, South Korea, where he was involved in the international standardization for radio frequency identification (RFID) and photovoltaic systems as well as electromagnetic interference (EMI)/EMC analysis, modeling, and measurements for information technology devices. In 2013, he joined the Korea Railroad Research Institute (KRRI), Uiwang-si, South Korea, as a Senior Researcher, where he was involved in the position detection for high-speed railroad systems and microwave heating for low-vibration rapid tunnel excavation systems. Since 2014, he has been a Professor with the Department of Electronic Engineering, Gyeongsang National University (GNU), Jinju, South Korea. From 2018 to 2019, he was a Visiting Scholar with the ATHENA Group, Georgia Institute of Technology, Atlanta, GA, USA. His current research interests include near- and far-field wireless power and data communications systems, RF/microwave antenna, circuit, and system design, RFID/Internet of Things (IoT) sensors, and EMI/EMC. Dr. Lee is a member of IEC/ISO JTC1/SC31, KIEES, IEIE, and KSR. He was a recipient of the Best Paper Award at IEEE RFID in 2013, the Kim Choong-Ki Award Electrical Engineering Top Research Achievement Award at the Department of Electrical Engineering, KAIST, in 2013, the Best Ph.D. Dissertation Award at the Department of Electrical Engineering, KAIST, in 2014, the Young Researcher Award at KIEES in 2017, and the Best Paper Awards at IEIE in 2018 and KICS in 2019.

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Published

2024-05-31

How to Cite

[1]
M. Elhefnawy, K. Kim, T.-H. Kim, and W.-S. Lee, “A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell”, ACES Journal, vol. 39, no. 05, pp. 440–451, May 2024.

Issue

2024: Vol 39 Iss 5

Section

General Submission

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