具有谐波抑制性质的开槽微带天线

doi:10.3969/j.issn.1001-2400.2013.06.018

J4 ›› 2013, Vol. 40 ›› Issue (6): 101-104+192.doi: 10.3969/j.issn.1001-2400.2013.06.018

具有谐波抑制性质的开槽微带天线

徐云学;龚书喜;刘英;洪涛

(西安电子科技大学天线与微波技术重点实验室，陕西西安 710071)

收稿日期:2012-10-22 出版日期:2013-12-20 发布日期:2014-01-10
作者简介:徐云学(1979-)，男，讲师，博士，E-mail: yunxuexu@sina.com．
基金资助:
国家自然科学基金资助项目(61072020)；中央高校基本科研业务费专项资金资助项目(K50510020006)

Slot microstrip antenna with harmonic control

XU Yunxue;GONG Shuxi;LIU Ying;HONG Tao

(Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an 710071， China)

Received:2012-10-22 Online:2013-12-20 Published:2014-01-10

摘要/Abstract

摘要：

提出了一种抑制谐波的同轴馈电微带天线．在微带天线辐射贴片的同轴馈电位置周围引入圆对称槽结构，实现了谐波抑制特性．研究了该圆对称槽结构抑制微带天线谐波特性的有效性．试验结果表明，在微带天线辐射贴片的同轴馈电位置附近引入圆对称槽结构能明显抑制谐波．测试的增益方向图表明，该天线与参考天线相比，在2次和3次谐波频率上，前向辐射压制为20～25dB以上，基模频率的前向增益和后向辐射没有明显变化．

关键词: 微带天线, 谐波抑制, 圆对称槽结构, 辐射方向图

Abstract:

With the introduction of the circularly symmetrical slot near the coaxial feed location of the square microstrip antenna patch, harmonic suppression performance can be realized in the antenna. Effectiveness of the circularly symmetrical slot for harmonic suppression is studied. Experimental results show that application of the circularly symmetrical slot near the coaxial feed location of the microstrip antenna patch can remarkably suppress the harmonic frequencies. Measured radiation patterns indicate that the forward radiation is suppressed by more than 20～25dB at the second and the third harmonic frequencies compared with the reference antenna, while both the forward radiation gain and the backward radiation at the fundamental mode resonant frequency remains basically unchanged.

Key words: microstrip antenna, harmonic suppression, circularly symmetrical slot structure, antenna radiation patterns

中图分类号:

TN820

徐云学;龚书喜;刘英;洪涛. 具有谐波抑制性质的开槽微带天线[J]. J4, 2013, 40(6): 101-104+192.

XU Yunxue;GONG Shuxi;LIU Ying;HONG Tao. Slot microstrip antenna with harmonic control[J]. J4, 2013, 40(6): 101-104+192.

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具有谐波抑制性质的开槽微带天线

Slot microstrip antenna with harmonic control

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