前馈四喇叭抛物面反射器天线校正焦距的确定

郁正强

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前馈四喇叭抛物面反射器天线校正焦距的确定

更新时间：2025-12-08

- 前馈四喇叭抛物面反射器天线校正焦距的确定
- Determination of Correcting Focal Distance for Front Feed Four Horn Paraboloidal Reflector
- 电子学报 1982年第2期页码：90-93
- 作者机构：
  
  中国航空研究院机载雷达研究所
- 作者简介：
- 基金信息：
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- 纸质出版：1982
- 稿件说明：
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[1]郁正强.前馈四喇叭抛物面反射器天线校正焦距的确定[J].电子学报,1982(02):90-93.

Yu Zheng-qiang. Determination of Correcting Focal Distance for Front Feed Four Horn Paraboloidal Reflector[J]. Acta Electronica Sinica, 1982, (2): 90-93.
[1]郁正强.前馈四喇叭抛物面反射器天线校正焦距的确定[J].电子学报,1982(02):90-93. DOI：

Yu Zheng-qiang. Determination of Correcting Focal Distance for Front Feed Four Horn Paraboloidal Reflector[J]. Acta Electronica Sinica, 1982, (2): 90-93. DOI：

摘要

本文主要应用几何光学原理

采用轴向散焦补偿横向散焦的方法

来确定比相、比幅兼用的前馈单脉冲抛物面反射器天线的校正焦距。利用馈源的轴向散焦导致的平方律相位差对横向散焦导致的线性相位差进行校正

获得了确定天线校正焦距的近似公式。计算结果与两种实际天线实测结果基本一致。

Abstract

By compensating Iransversal offset focus with axial offset focus

focal distance to correct monopulse paraboloidal reflector can be determined.Formulae derived indicate that phase distributions on apertures caused by transversal offset focus are almost in linear order

whilst those by axial offset focus are in quadratic order. Approximate expressions have been obtained by correcting linear phase distribution difference of transversal offset focus with the difference of axial offset focus

which can be used to determine antenna focal distance. Calculation results show very good agreement with experiments.

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