The Characters of Time Domain Radiated Field of Ultra Wide Band Ultra Low Side Lobe Phased Array Antenna

WANG Nan; XUE Zheng-hui; YANG Shi-ming; LIU Rui-xiang

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The Characters of Time Domain Radiated Field of Ultra Wide Band Ultra Low Side Lobe Phased Array Antenna

更新时间：2025-07-16

- The Characters of Time Domain Radiated Field of Ultra Wide Band Ultra Low Side Lobe Phased Array Antenna
- Acta Electronica Sinica Vol. 34, Issue 9, Pages: 1605-1609(2006)
- 作者机构：
  
  北京理工大学电子工程系,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN821+.8
- Published Online：25 September 2006，
  
  Published：2006
- 稿件说明：
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WANG Nan, XUE Zheng-hui, YANG Shi-ming, et al. The Characters of Time Domain Radiated Field of Ultra Wide Band Ultra Low Side Lobe Phased Array Antenna[J]. Acta Electronica Sinica, 2006, 34(9): 1605-1609.
DOI：

WANG Nan, XUE Zheng-hui, YANG Shi-ming, et al. The Characters of Time Domain Radiated Field of Ultra Wide Band Ultra Low Side Lobe Phased Array Antenna[J]. Acta Electronica Sinica, 2006, 34(9): 1605-1609. DOI：

摘要

本文首先研究了天线时域辐射远场的基本原理

建立了计算公式.在此基础之上

分析了相控阵天线工作在窄脉冲条件下的时域辐射场

发现其时域方向性(如:时域远场峰值方向图、时域远场平均功率方向图)与频域方向性(频域远场方向图)并不一致

这种不一致性随着天线口径的增大或脉冲宽度的变窄而愈加明显

并且在天线注满时间之内表现得尤为突出.文章由此指出:对于超宽带超低副瓣相控阵天线来说

其性能用时域指标去衡量胜于用频域指标去衡量的新观点.

Abstract

Some basic principles of time domain electromagnetic field radiated by any kind of sources

especially by phased array antenna are presented. From the principles

we find the differences of radiating properties between time domain antennas and frequency domain antennas. And it is possible to describe the radiating properties of a time domain antenna using time domain signal distribution on a far field spherical face. The time domain electromagnetic fields of a ultra wide band ultra low side lobe phased array antenna have many new fashions

which are very difficult to be described in frequency domain. So it is very necessary to develop time domain methods to describe an ultra wide band ultra low side lobe phased array antenna.

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