Analysis and Calculation for the Phase Center of the LPDA

DING Xiao-lei; WANG Jian; LIN Chang-lu

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Analysis and Calculation for the Phase Center of the LPDA

更新时间：2025-07-16

- Analysis and Calculation for the Phase Center of the LPDA
- Acta Electronica Sinica Vol. 31, Issue 9, Pages: 1375-1377(2003)
- 作者机构：
  
  1. 中国航天科技集团公司704所,北京,100076
  2. 电子科技大学微波工程系,四川,成都,610054
  3. 中国航天科技集团公司704所北京,100076
  4. 电子科技大学微波工程系四川成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN82
- Published：2003
- 稿件说明：
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DING Xiao-lei, WANG Jian, LIN Chang-lu. Analysis and Calculation for the Phase Center of the LPDA[J]. Acta Electronica Sinica, 2003, 31(9): 1375-1377.
DOI：

DING Xiao-lei, WANG Jian, LIN Chang-lu. Analysis and Calculation for the Phase Center of the LPDA[J]. Acta Electronica Sinica, 2003, 31(9): 1375-1377. DOI：

摘要

本文通过对对数周期偶极子天线(LPDA)相位中心的分析和计算

得出了该天线不存在完整的相位中心

但却存在视在相位中心

该相位中心均位于有效区内

并随着频率的变化而沿集合线移动.文中计算了LPDA不同频率处的E面和H面视在相位中心的位置.

Abstract

The conclusion is derived that the LPDA has no strictest phase center but has an approximate phase center .Approximate phase centers can be defined by computing the local curvature of a far-field constant-phase surface on the antenna's principal lobe.The phase centers computed from each pattern are situated in the radiation section of LPDA and

moreover

track differently with frequency.

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