带限周期函数的Fourier插值法在天线测量中的应用

付煜洲; 杨佳蔚; 王朕; 商锋

doi:10.12265/j.cjors.2021157

带限周期函数的Fourier插值法在天线测量中的应用

doi: 10.12265/j.cjors.2021157

付煜洲^1, ,,
杨佳蔚²,
王朕³,
商锋¹

1.
西安邮电大学电子工程学院, 西安 710121
2.
广东曼克维通信科技有限公司, 广州510700
3.
西安空间无线电技术研究所, 西安 710000

详细信息

作者简介:
付煜洲 (2000—),男，陕西人，西安邮电大学电子工程学院，研究方向为天线设计与电磁测量技术

杨佳蔚 (1987—),男,陕西人,西安电子科技大学电子工程学院硕士研究生，研究方向为天线测量系统及算法

王朕 (2000—)，男，陕西人，西安邮电大学电信系，研究方向为电路设计、电磁测量等

商锋 (1966—)，男，陕西人，西安电子科技大学电子工程学院研究生毕业，现为西安邮电大学教授，研究方向为天线设计、射频电路设计与天线测量技术

通讯作者:
付煜洲 E-mail: 2791255777@qq.com

中图分类号: TN98
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- 文章访问数: 88
- HTML全文浏览量: 32
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2021-06-10
- 录用日期: 2022-02-14
- 网络出版日期: 2022-02-14

Application of Fourier interpolation method with limited periodic function in antenna radiation pattern measurement

1.
School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an 710121, China
2.
Guangdong Mikwave Communication Tech. Ltd., Guangzhou, Guangdong, 510700, China
3.
Institution of Xi’an Space Radio Technology Research, Xi’an 710000, China

摘要

摘要: 天线远场测量是获得其辐射特性的一种常用方法，为得到方向图的细节，测量方向图的角度间隔一般应小于待测天线半功率波束宽度的1/10，否则会导致方向图相关参数如半功率波束宽度、副瓣电平等的不准确. 针对高增益、窄波束天线的远场测量，为了得到精确测量结果，测量间隔要求非常小，导致测试时间长，测试效率低下. 文中提出了一种基于带限周期函数的Fourier插值法的高效率方向图测试方法，此方法将采样间隔增加到待测天线半功率波束宽度量级，仍然可以准确重构出角度间隔任意小的方向图，从而能够显著提高测试效率. 仿真和实测结果证明了本方法的可行性.
- 天线测量 /
- 远场 /
- 带限周期函数 /
- Fourier差值法
Abstract: Far-field antenna measurement is a traditional method to obtain antenna radiation characteristics. In order to analyze the details of the radiation pattern, the angular interval of the measured radiation pattern should generally be less than 1/10 of the half-power beam width of the antenna under test, otherwise it will introduce errors to the antenna radiation parameters (half-power beam width, sidelobe level, etc.). For the far-field measurement of a high-gain, narrow-beam antenna, in order to obtain accurate results, the measurement interval will be very small, leading to long measurement time and reducing measurement efficiency. High efficiency antenna measurement of Fourier interpolation method based on band-limited periodic function is given in this paper and has been used in practical antenna measurement. Using the proposed method, the sampling interval can be increased to the order of the half-power beam width of the antenna under test, and the radiation pattern of arbitrarily small angular intervals can be reconstructed accurately, which can significantly improve measurement efficiency. Simulated and measured results prove the algorithm.
- antenna measurement /
- far field /
- band-limited periodic function /
- Fourier interpolation method

HTML全文

图 1 天线模型

Fig. 1 The antenna model

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图 2 插值前幅度和相位方向图

Fig. 2 The amplitude and phase patterns before interpolation

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图 3 插值后方向图与理论方向图比较

Fig. 3 The comparison between the pattern after interpolation and the theoretical pattern

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图 4 插值前幅度和相位方向图

Fig. 4 The amplitude and phase patterns before interpolation

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图 5 插值后方向图与实测方向图的比较

Fig. 5 The comparison between the pattern after interpolation and the measured pattern

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图 6 仅用幅度信息插值得到的方向图与实测方向图的比较

Fig. 6 The comparison of the pattern obtained by interpolation with amplitude information only and the measured pattern

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参考文献(16)

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