Accurate Far-Field Measurement of Wide-Angle Scanning Phased Array Antennas

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.360915

H. Tang, Xianbao Zheng

引用次数: 0

Abstract

─ This paper presents a new approach to the accurate determination of the far-field (FF) pattern of wide-angle scanning phased array antennas (PAAs) that uses planar near-field (NF) technology. When PAAs are engaged in wide-angle scanning, a finite scanning plane and inaccurate probe compensation can lead to truncation errors. The proposed approach reduces these by rotating the PAA to make its main beam perpendicular to the scanning plane. To verify the effectiveness of the approach, both theoretical calculations and actual measurements were undertaken. The simulated and measured results prove that the proposed method is more accurate than traditional NF technology for a large PAA scanning angle, such as ψ0=50° and Δ0=50° (in simulation; 54° when measured). Index Terms ─ Antenna measurement, planar near-field technology, wide-angle scanning phased array antenna.

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广角扫描相控阵天线的精确远场测量

──本文提出了一种利用平面近场技术精确测定广角扫描相控阵天线远场方向图的新方法。当PAAs进行广角扫描时，有限的扫描平面和不准确的探头补偿会导致截断误差。所提出的方法通过旋转PAA使其主光束垂直于扫描平面来减少这些问题。为了验证该方法的有效性，进行了理论计算和实际测量。仿真和实测结果表明，对于较大的PAA扫描角，如仿真中的ψ0=50°和Δ0=50°，所提出的方法比传统的NF技术具有更高的精度;测量时为54°)。检索术语─天线测量、平面近场技术、广角扫描相控阵天线。

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

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.

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