加载电磁带隙结构的阶梯型微带天线设计及分析

郝建红; 曹占国; 范宗皓; 王晖; 郭超

doi:10.11884/HPLPB201830.170419

加载电磁带隙结构的阶梯型微带天线设计及分析

doi: 10.11884/HPLPB201830.170419

华北电力大学电气与电子工程学院, 北京 102206

基金项目:

国家自然科学基金项目 61372050

详细信息

作者简介:
郝建红(1960－), 女，教授，博导，从事电磁场与微波技术研究；jianhonghao@ncepu.edu.cn

通讯作者:
曹占国(1993－), 男，硕士，从事电磁场与微波技术研究；1711470531@qq.com

中图分类号: TN95
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- 被引次数: 0
出版历程
- 收稿日期: 2017-10-30
- 修回日期: 2017-12-27
- 刊出日期: 2018-04-15

Design and analysis of ladder-type microstrip antenna with electranagnetic bandgap structure

School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

摘要

摘要: 为了减弱大气摩擦引起的高温损伤，航空飞行器雷达天线一般都会加装天线罩或介质窗，将电磁带隙(EBG)结构的禁带特性和阶梯型微带天线的带宽及良好的匹配特性相结合，设计了一种含介质窗的EBG结构阶梯型微带天线，并计算分析了天线的辐射特性及介质窗对辐射特性的影响。结果表明：EBG结构产生的带隙能够制约天线表面波的传播，改善天线的带宽和增益性能，且当介质窗存在时，该结构亦可降低天线与介质窗间的互耦效应。这为含介质窗的EBG结构阶梯型微带天线的设计和应用提供了一定理论参考。
- 电磁带隙(EBG)结构 /
- 阶梯型微带天线 /
- 介质窗 /
- HFSS仿真
Abstract: In order to reduce the high temperature damage caused by atmospheric friction, aircraft radar antenna will generally be equipped with radome or dielectric window. In this paper, the bandgap characteristic of the electromagnetic bandgap (EBG) structure and the bandwidth and the good matching characteristics of the ladder-type microstrip antenna are combined to design an EBG structure ladder-type microstrip antenna with dielectric window, and then the antenna radiation characteristics and the effect of dielectric window on them are calculated and analyzed. The results show that the bandgap produced by the EBG structure can restrict the propagation of the surface wave of the antenna and improve the bandwidth and gain performance of the antenna. The structure can also reduce the mutual coupling effect between the antenna and the dielectric window, which can provide a theoretical reference for the design and application of the EBG structure ladder-type microstrip antenna with dielectric window.
- electromagnetic bandgap structure /
- microstrip antenna /
- dielectric antenna superstrate /
- HFSS simulation

HTML全文

图 1 EBG结构单元

Figure 1. Electromagnetic bandgap (EBG) structural unit

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图 2 EBG结构的等效电路模型

Figure 2. Equivalent circuit model of EBG structure

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图 3 不同结构参数时EBG结构带隙反射相位的变化曲线

Figure 3. Variation of reflection phase of EBG structure bandgap with different structure parameters

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图 4 EBG结构单元的能带结构图

Figure 4. Band structure of EBG structural unit

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图 5 EBG结构单元带隙反射相位图

Figure 5. Reflection phase of EBG structural unit bandgap

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图 6 含EBG结构的阶梯型微带天线

Figure 6. Ladder-type microstrip antenna with EBG structure

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图 7 四类天线的回波系数

Figure 7. Echo coefficients of four types of antennas

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图 8 四类天线E-plane方向图

Figure 8. E-plane pattern of four types of antennas

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图 9 H-plane辐射方向图

Figure 9. H-plane radiation pattern

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图 10 E-plane辐射方向图

Figure 10. E-plane radiation pattern

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