A Full－Wave lntegrated Time Domain Analysis of Microstrip Array Antenna

陈彬; 方大纲; 周东; 高成

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A Full－Wave lntegrated Time Domain Analysis of Microstrip Array Antenna

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- A Full－Wave lntegrated Time Domain Analysis of Microstrip Array Antenna
- Acta Electronica Sinica Issue 3, Pages: 5-9(1998)
- 作者机构：
  
  1. 南京理工大学!南京
  2. 210094
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN82
- Published：1998
- 稿件说明：
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[1]陈彬,方大纲,周东,高成.微带天线阵的宽带、全波、一体化分析[J].电子学报,1998(03):5-9.

陈彬, 方大纲, 周东, et al. A Full－Wave lntegrated Time Domain Analysis of Microstrip Array Antenna[J]. Acta Electronica Sinica, 1998, (3): 5-9.
[1]陈彬,方大纲,周东,高成.微带天线阵的宽带、全波、一体化分析[J].电子学报,1998(03):5-9. DOI：

陈彬, 方大纲, 周东, et al. A Full－Wave lntegrated Time Domain Analysis of Microstrip Array Antenna[J]. Acta Electronica Sinica, 1998, (3): 5-9. DOI：

摘要

本文首次采用时域有限差分法（FDTD）［1］和修正的完全匹配层（MPML）吸收边界条件［2］，对16单元的微带缝隙直线阵列天线进行了全波、宽带、一体化分析．文中讨论了MPML在微带结构中的设置方法和完全匹配条件，比较了采用PML［11］，MPML两种吸收边界条件的结果，结果表明，由于微带阵列天线近场比孤立的微带天线包含更多的衰减较慢的凋落波，PML难以吸收这些凋落波而产生较大误差，MPML在吸收旧落波方面明显优于PML，具有较高的精度．

Abstract

A full-wave integrated time domain analysis of the 1×16 element microstrip array antenna is carried out by finite difference-time domain（FDTD）method.The modified Berenger PML（MPML）absorbing con dition is used in the analysis.The MPML is more efficient in absorbing the evancescent energy and keeping the same performance for propagating modes.This good behavior of MPML is improtant in our analysis.Compared to isolated microstrip antenna

more slow decay evancescent waves are included near nicrostrip antenna array.It is shown that the MPML results are more accurate than the PML ones

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