On Development and Application ofMechanical-Electromagnetic-Field Coupling Model of Reflector Antennas

WANG Cong-si; DUAN Bao-yan

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On Development and Application ofMechanical-Electromagnetic-Field Coupling Model of Reflector Antennas

更新时间：2025-07-16

- On Development and Application ofMechanical-Electromagnetic-Field Coupling Model of Reflector Antennas
- Acta Electronica Sinica Vol. 39, Issue 6, Pages: 1431-1435(2011)
- 作者机构：
  
  西安电子科技大学电子装备结构设计教育部重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN820.28
- Published：2011
- 稿件说明：
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WANG Cong-si, DUAN Bao-yan. On Development and Application ofMechanical-Electromagnetic-Field Coupling Model of Reflector Antennas[J]. Acta Electronica Sinica, 2011, 39(6): 1431-1435.
DOI：

WANG Cong-si, DUAN Bao-yan. On Development and Application ofMechanical-Electromagnetic-Field Coupling Model of Reflector Antennas[J]. Acta Electronica Sinica, 2011, 39(6): 1431-1435. DOI：

摘要

针对反射面天线随机误差和系统误差的特点

通过对Ruze公式、最佳吻合和提出的机电场耦合关系式的分析比较

从理论上研究了三者的差别.即Ruze公式未考虑反射面的系统误差

从而导致对天线结构设计和制造精度要求往往过高

而最佳吻合虽考虑了系统误差

但未考虑随机误差.机电场耦合关系式则将两种误差同时考虑进去了

并将电性能表示为结构设计变量的函数.三个典型反射面天线的实际计算验证了机电场耦合关系式的正确性与有效性

同时也表明新的场耦合关系式可综合考虑机械结构设计与电磁设计

实现反射面天线的机电集成设计.

Abstract

Considering surface’s random error and systematic error of reflector antenna

the difference of both errors is discussed by comparing Ruze formula

best-fit paraboloid and mechanical-electromagnetic-field coupling model.Since the deformation error is not concerned in Ruze formula

reflector’s precision is required too high sometimes so that the difficulty of antenna’s design and manufacturing is increased considerably.In contrast

the precision of the reflector required by the developed coupling model could be decreased.For the same surface precision

the higher electronic performance could be obtained by the coupling model than by Ruze formula.The experimental results of three antennas respectively are given to demonstrate the difference between them.In addition

the coupling model also paves a road for realization of mechatronics design of reflector antenna in engineering.

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