用于高温应用的宽带高增益贴片天线阵列的设计。

Design of Wideband High-Gain Patch Antenna Array for High-Temperature Applications.

机构信息

Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi'an 710071, China.

DICAM-Department of Civil, Environmental, and Mechanical Engineering, Trento University, 38123 Trento, Italy.

出版信息

Sensors (Basel). 2023 Apr 8;23(8):3821. doi: 10.3390/s23083821.

DOI:10.3390/s23083821

PMID:37112162

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10143479/

Abstract

A low-profile, wideband, and high-gain antenna array, based on a novel double-H-shaped slot microstrip patch radiating element and robust against high temperature variations, is proposed in this work. The antenna element was designed to operate in the frequency range between 12 GHz and 18.25 GHz, with a 41.3% fractional bandwidth (FBW) and an obtained peak gain equal to 10.2 dBi. The planar array, characterized by a feed network with a flexible 1 to 16 power divider, comprised 4 × 4 antenna elements and generated a pattern with a peak gain of 19.1 dBi at 15.5 GHz. An antenna array prototype was fabricated, and the measurements showed good agreement with the numerical simulations as the manufactured antenna operated in the range of 11.4-17 GHz, with a 39.4% FBW, and the peak gain at 15.5 GHz was 18.7 dBi. The high-temperature simulated and experimental results, performed in a temperature chamber, demonstrated that the array performance was stable in a wide temperature range, from -50 °C to 150 °C.

摘要

本工作提出了一种基于新型双 H 形槽微带贴片辐射单元的低剖面、宽带、高增益天线阵列，该天线对高温变化具有较强的稳健性。天线单元设计工作在 12GHz 至 18.25GHz 的频率范围内，具有 41.3%的相对带宽（FBW），并获得了 10.2dBi 的峰值增益。平面阵列采用具有灵活 1 比 16 功率分配器的馈电网络为特点，由 4×4 个天线单元组成，在 15.5GHz 时产生了峰值增益为 19.1dBi 的方向图。制造了一个天线阵列原型，测量结果与数值模拟吻合较好，制造的天线在 11.4GHz 至 17GHz 的范围内工作，具有 39.4%的 FBW，在 15.5GHz 时的峰值增益为 18.7dBi。在温度室中进行的高温模拟和实验结果表明，该阵列在-50°C 至 150°C 的宽温度范围内性能稳定。