Scholarlink

<p>To protect human head from the exposure of radio frequency (RF) fields in mobile phone applications, we present a study of energy dissipation and SAR reduction at simulated human head by utilizing 5G patch antenna with a novel energy absorber in millimeter wavebands. Preparatory study includes unique design of 5G radiating patch antenna (RPA) centering at the frequency of 9.1–9.2&#xa0;GHz. Further, a polarization-dependent energy absorber is utilized to compute energy absorption efficiency of absorber at various parts of simulated head organs. The absorber is 18&#xa0;mm in diameter and 2.1944&#xa0;mm thick, which is composed of pair of copper circular split rings etched on printed circuit board (PCB). The simulations reveal that absorber exhibits strong resonance and creates multiple stop bands at 9.1317–9.1346&#xa0;GHz and 9.1514–9.1756&#xa0;GHz, respectively. In consequence, energy absorber absorbs significant energy and reduces energy dissipation/SAR at simulated ear and brain of human head model. In addition, comparative study of thermal noise resistance and specific absorption ratio (SAR) at simulated head’s organs is presented which can furnish useful facts for safer 5G technology cell phone applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Utilization of Energy Absorber with 5G Patch Antenna for SAR Reduction at Simulated Human Brain

  • 期刊论文

  • 发表日期：

    2025年3月19日

查看全文
  • Hassan Ali,
  • Haibin Ni

摘要

To protect human head from the exposure of radio frequency (RF) fields in mobile phone applications, we present a study of energy dissipation and SAR reduction at simulated human head by utilizing 5G patch antenna with a novel energy absorber in millimeter wavebands. Preparatory study includes unique design of 5G radiating patch antenna (RPA) centering at the frequency of 9.1–9.2 GHz. Further, a polarization-dependent energy absorber is utilized to compute energy absorption efficiency of absorber at various parts of simulated head organs. The absorber is 18 mm in diameter and 2.1944 mm thick, which is composed of pair of copper circular split rings etched on printed circuit board (PCB). The simulations reveal that absorber exhibits strong resonance and creates multiple stop bands at 9.1317–9.1346 GHz and 9.1514–9.1756 GHz, respectively. In consequence, energy absorber absorbs significant energy and reduces energy dissipation/SAR at simulated ear and brain of human head model. In addition, comparative study of thermal noise resistance and specific absorption ratio (SAR) at simulated head’s organs is presented which can furnish useful facts for safer 5G technology cell phone applications.