Ultra-Wideband Cylindrical Conformal Array Antenna Based on LPKDA

2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO) Pub Date : 2020-12-07 DOI:10.1109/NEMO49486.2020.9343641

Zhixin Wang, Xiaoyan Zhao, Fangzheng Ji, Shichun Huang, Zhaoneng Jiang

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引用次数: 2

Abstract

A new type of ultra-wideband cylindrical conformal array antenna is presented. Considering that the microstrip antenna has the advantages of small size and easy conformity with the surface of the carrier and the non-frequency-dependent characteristics of the log periodic antenna, the microstrip log periodic antenna is selected as the unit of the array antenna. Then the fractal Koch curve structure is adopted to improve the traditional antenna. Then an array of five log periodic Koch antennas conformal with a hollow cylindrical carrier is designed. Simulation results show that when five log periodic antenna elements work simultaneously, the frequency range of S11< -10dB is 3.57GHz-12.95GHz. Its operating bandwidth is 9.38 GHz and relative bandwidth is up to 114%, meeting the requirements of the working bandwidth of UWB antenna. Through the reasonable space layout and parameter optimization, the design has achieved miniaturization, , ultra-wide band, high gain, simple structure and so on. It is suitable for communication, reconnaissance and electronic countermeasures.

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基于LPKDA的超宽带圆柱共形阵列天线

提出了一种新型的超宽带圆柱共形阵列天线。考虑到微带天线具有体积小、易于与载体表面贴合的优点，以及对数周期天线的非频率依赖特性，选择微带对数周期天线作为阵列天线的单元。然后采用分形科赫曲线结构对传统天线进行改进。在此基础上，设计了一种与空心圆柱载波共形的5个对数周期科赫天线阵列。仿真结果表明，当5个对数周期天线单元同时工作时，S11< -10dB的频率范围为3.57GHz-12.95GHz。其工作带宽为9.38 GHz，相对带宽高达114%，满足UWB天线的工作带宽要求。通过合理的空间布局和参数优化，实现了小型化、超宽带、高增益、结构简单等特点。它适用于通信、侦察和电子对抗。

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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来源期刊

2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO)

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