用于航空电子设备应用的高隔离度和频带增强型无线电高度计天线

IF 3.5 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Open Journal of Antennas and Propagation Pub Date : 2024-07-08 DOI:10.1109/OJAP.2024.3425225
Omar M. Khan;Jean-Jacques Laurin
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引用次数: 0

摘要

针对无线电高度计航空应用,介绍了具有低侧波水平和增强带宽的环形叠层贴片天线的概念。设计一维电磁带隙时,在多层基板上沿辐射贴片使用了带圆环的金属通孔,以提供高 H 平面隔离度并减少横向表面电流。为了提高天线的带宽,采用了叠层贴片天线配置。仿真和分析用于优化拟议天线的频率响应和侧叶电平。对制造的原型进行了测量,其增益超过 12 dB,边瓣电平小于 -42 dB。两个相邻天线之间的信号干扰比达到 85 dB,比商用天线高出 5dB,原因是增益提高,边瓣水平降低。天线的设计增强了 4.06 GHz 至 4.53 GHz 的频率带宽。安装在赛斯纳 210 飞机机身上的天线的阻力系数计算显示,其阻力基本上可以忽略不计。
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High Isolation and Band Enhanced Radio Altimeter Antenna for Avionics Applications
Concept of ringed stacked patch antenna with low side lobe level and enhanced bandwidth is introduced for radio altimeter avionics applications. One dimensional electromagnetic band gap is designed using metallic vias with circular rings along the radiating patches on multilayered substrate for providing high isolation in H-plane and reducing lateral surface currents. A stacked patch antenna configuration is used for enhancing the bandwidth of the antenna. Simulation and analysis are performed for the optimization of the frequency response and sidelobe levels of the proposed antenna. Gain of more than 12 dB with sidelobe levels less than −42 dB were measured for a fabricated prototype. Signal to interference ratio of 85 dB is achieved between two adjacent antennas, which is 5dB better than commercial antennas due to increased gain and reduced sidelobe levels. The antenna is designed for enhanced frequency bandwidth from 4.06 GHz to 4.53 GHz. Computed drag coefficient of the antenna mounted on the fuselage of Cessna 210 aircraft show that the drag is essentially negligible.
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来源期刊
CiteScore
6.50
自引率
12.50%
发文量
90
审稿时长
8 weeks
期刊最新文献
Front Cover Table of Contents Guest Editorial Introduction to the Special Section on Women’s Research in Antennas and Propagation Section (WRAPS) IEEE ANTENNAS AND PROPAGATION SOCIETY Electromagnetic and Thermal Co-Analysis of an Implanted Dipole Antenna
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