用于生物医学应用的凹面共形 GP 加载共形 FSS 的 CDRA

IF 2.2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Sensors Letters Pub Date : 2024-10-15 DOI:10.1109/LSENS.2024.3481258

Manshree Mishra;Garima Tiwari;Pramod Kumar Gupta;Atul Kumar;Biswajeet Mukherjee

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引用次数: 0

摘要

本信介绍了在共形圆柱介质谐振器天线（CDRA）上加载共形频率选择表面（FSS）的开发情况，以改善 C 波段应用的辐射特性。正弦槽孔馈电用于激励所提议的结构。CDRA 上的扰动用于改善天线的阻抗带宽。为了获得圆极化，CDRA 在 (2n ± 1) λ/4 的距离上装载了共形 FSS。为了尽量减少对附近人体的辐射，计算出的比吸收率（SAR）值小于 1.6 W/Kg，且 SAR 值随着 DRA 与人体头部距离的增加而降低。对所提出的结构进行了制作，测量结果与模拟结果非常吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CDRA on Concave Conformal GP Loaded With Conformal FSS for Biomedical Applications

The development of a conformal frequency selective surface (FSS) loaded on a conformal cylindrical dielectric resonator antenna (CDRA) for the improvement of radiation characteristics for C band applications is presented in this letter. Sinusoidal slot aperture feeding is used for the excitation of the proposed structure. Perturbation on the CDRA is used to improve the impedance bandwidth of an antenna. For obtaining the circular polarization, CDRA is loaded with a conformal FSS at a distance of (2n ± 1) λ/4. To minimize radiation exposure to nearby human bodies, specific absorption rate (SAR) value is calculated, which is less than the 1.6 W/Kg, and the SAR value decreases as the distance between DRA and human head increases. The proposed structure is fabricated, and the measured results are in close agreement with simulated results.

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