Elsharabasy Ahmed Y, Bakr Mohamed H, Deen M Jamal
Engineering Mathematics and Physics Department, Faculty of Engineering, Cairo University, Giza, 12613, Egypt.
Electrical and Computer Engineering Department, McMaster University, Hamilton, ON, L8S 4K1, Canada.
Sci Rep. 2023 Oct 16;13(1):17525. doi: 10.1038/s41598-023-43709-3.
A novel, polarization-independent, wide-angle reception Chand-Bali nano-antenna is proposed. An adjoint-based optimization algorithm is used to create the same resonance at both linear polarizations of the incident radiation. The nano-antenna optimal parameters reveal that two hot spots with a strong field enhancement are created. These hot-spots could be integrated with metal-insulator-metal (MIM) diodes to form a rectenna for infrared (IR) energy harvesting. The metallic resonators allow for selecting several materials to facilitate the fabrication of the nano-antenna and the MIM diode. The Chand-Bali-based IR rectennas are investigated and simulations demonstrate an improvement of more than one order of magnitude in efficiency compared to ones using traditional nano-antennas.
提出了一种新型的、与偏振无关的广角接收钱德 - 巴厘纳米天线。基于伴随的优化算法用于在入射辐射的两个线性偏振上产生相同的共振。纳米天线的最佳参数表明产生了两个具有强场增强的热点。这些热点可与金属 - 绝缘体 - 金属（MIM）二极管集成，以形成用于红外（IR）能量收集的整流天线。金属谐振器允许选择多种材料，以促进纳米天线和MIM二极管的制造。对基于钱德 - 巴厘的红外整流天线进行了研究，模拟结果表明，与使用传统纳米天线的整流天线相比，效率提高了一个多数量级。
