Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding
In this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. The FSS comprises a convoluted conducting loop designed over an FR-4 substrate. It operates at 10 GHz X-band frequency and offers an effective shielding of...
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MDPI AG
2025-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/8/4534 |
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| author | Muhammad Idrees Yejun He Youquan Wen Abdul Majeed |
| author_facet | Muhammad Idrees Yejun He Youquan Wen Abdul Majeed |
| author_sort | Muhammad Idrees |
| collection | DOAJ |
| description | In this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. The FSS comprises a convoluted conducting loop designed over an FR-4 substrate. It operates at 10 GHz X-band frequency and offers an effective shielding of at least 33 dB. It reveals rejection bandwidths of 26% for the TE and TM wave modes at normal incidence. Moreover, it accomplishes polarization-insensitive and angularly stable spectral responses owing to its structural symmetry and compact size. In addition, an equivalent circuit model (ECM) and a finite prototype of the shield are developed to verify EM simulations. A comparison of the results indicates that the FSS offers wide angular stability and excellent shielding performance, which makes it a suitable candidate for applications requiring targeted EMI mitigation. |
| format | Article |
| id | doaj-art-d900b313b68a42e8905b2c863cfb5ad8 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-d900b313b68a42e8905b2c863cfb5ad82025-08-20T03:14:21ZengMDPI AGApplied Sciences2076-34172025-04-01158453410.3390/app15084534Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI ShieldingMuhammad Idrees0Yejun He1Youquan Wen2Abdul Majeed3State Key Laboratory of Radio Frequency Heterogeneous Integration, Sino-British Antennas and Propagation Joint Laboratory of MOST, Guangdong Engineering Research Center of Base Station Antennas and Propagation, Shenzhen Key Laboratory of Antennas and Propagation, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, ChinaState Key Laboratory of Radio Frequency Heterogeneous Integration, Sino-British Antennas and Propagation Joint Laboratory of MOST, Guangdong Engineering Research Center of Base Station Antennas and Propagation, Shenzhen Key Laboratory of Antennas and Propagation, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, ChinaState Key Laboratory of Radio Frequency Heterogeneous Integration, Sino-British Antennas and Propagation Joint Laboratory of MOST, Guangdong Engineering Research Center of Base Station Antennas and Propagation, Shenzhen Key Laboratory of Antennas and Propagation, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, ChinaState Key Laboratory of Radio Frequency Heterogeneous Integration, Sino-British Antennas and Propagation Joint Laboratory of MOST, Guangdong Engineering Research Center of Base Station Antennas and Propagation, Shenzhen Key Laboratory of Antennas and Propagation, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, ChinaIn this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. The FSS comprises a convoluted conducting loop designed over an FR-4 substrate. It operates at 10 GHz X-band frequency and offers an effective shielding of at least 33 dB. It reveals rejection bandwidths of 26% for the TE and TM wave modes at normal incidence. Moreover, it accomplishes polarization-insensitive and angularly stable spectral responses owing to its structural symmetry and compact size. In addition, an equivalent circuit model (ECM) and a finite prototype of the shield are developed to verify EM simulations. A comparison of the results indicates that the FSS offers wide angular stability and excellent shielding performance, which makes it a suitable candidate for applications requiring targeted EMI mitigation.https://www.mdpi.com/2076-3417/15/8/4534angular stabilityband-reject filterelectromagnetic interference (EMI)equivalent circuit modelfrequency-selective surfacespatial filter |
| spellingShingle | Muhammad Idrees Yejun He Youquan Wen Abdul Majeed Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding Applied Sciences angular stability band-reject filter electromagnetic interference (EMI) equivalent circuit model frequency-selective surface spatial filter |
| title | Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding |
| title_full | Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding |
| title_fullStr | Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding |
| title_full_unstemmed | Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding |
| title_short | Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding |
| title_sort | design of a miniaturized and polarization independent frequency selective surface for targeted emi shielding |
| topic | angular stability band-reject filter electromagnetic interference (EMI) equivalent circuit model frequency-selective surface spatial filter |
| url | https://www.mdpi.com/2076-3417/15/8/4534 |
| work_keys_str_mv | AT muhammadidrees designofaminiaturizedandpolarizationindependentfrequencyselectivesurfacefortargetedemishielding AT yejunhe designofaminiaturizedandpolarizationindependentfrequencyselectivesurfacefortargetedemishielding AT youquanwen designofaminiaturizedandpolarizationindependentfrequencyselectivesurfacefortargetedemishielding AT abdulmajeed designofaminiaturizedandpolarizationindependentfrequencyselectivesurfacefortargetedemishielding |