一种新型超宽带渐变槽线天线设计

J4 ›› 2009, Vol. 36 ›› Issue (6): 1034-1038.

一种新型超宽带渐变槽线天线设计

宋跃;焦永昌;张福顺;王乃彪

(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:2008-10-06 出版日期:2009-12-20 发布日期:2010-01-20
通讯作者: 宋跃
作者简介:宋跃(1982-)，男，西安电子科技大学博士研究生，E-mail: ysong@mail.xidian.edu.cn．

Design of a novel ultra-wideband tapered slot antenna

SONG Yue;JIAO Yong-chang;ZHANG Fu-shun;WANG Nai-biao

(Key Lab. of Antennas and Microwave Technology, Xidian Univ., Xi'an 710071， China)

Received:2008-10-06 Online:2009-12-20 Published:2010-01-20
Contact: SONG Yue

摘要/Abstract

摘要：

设计并制作了一种新型微带馈电的渐变槽线天线．采用改进的微带-槽线过渡，更好地解决了超宽带天线的阻抗匹配问题．提出一种新型渐变辐射曲线，有效地改善了低频段的匹配特性．实物样机的测试结果表明，在 0.92~ 14.25GHz频带内该天线的电压驻波比小于 2.0∶1，带宽比达到 15.4∶1，而且其带内辐射方向图的前后比大于 15dB，交叉极化低于 -18dB．

关键词: 超宽带, 渐变槽线天线, 微带-槽线过渡

Abstract:

A microstrip fed ultra-wideband tapered slot antenna is designed and fabricated. The wideband impedance matching is obtained by the use of a modified microstrip/slotline transition. The improvement of impedance characteristics at the lower band is achieved by introducing a novel flare curve as a radiation part. The measured results of the proposed antenna demonstrate that this directional antenna achieves a ratio bandwidth of 15.4∶1 for VSWR≤2 from 0.92 to 14.25GHz. The front-to-back ratio and cross polarization ratio of its radiation patterns over the operating band are greater then 18 dB and less than -18dB, respectively.

Key words: ultra-wideband, tapered slot antenna, microstrip-slot transition

中图分类号:

TN823.24

宋跃;焦永昌;张福顺;王乃彪. 一种新型超宽带渐变槽线天线设计[J]. J4, 2009, 36(6): 1034-1038.

SONG Yue;JIAO Yong-chang;ZHANG Fu-shun;WANG Nai-biao. Design of a novel ultra-wideband tapered slot antenna[J]. J4, 2009, 36(6): 1034-1038.

参考文献

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