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引用本文：

张倩,刘运林,李智勇,等.一种改进的小型化超宽带平面倒锥缝隙天线[J].电讯技术，2010，50（11）： - . [点击复制]
ZHANG Qian,LIU Yun-lin,LI Zhi-yong,et al.A Modified Miniature Ultrawideband (UWB) Printed PICA-like Slot Antenna[J].，2010，50（11）： - . [点击复制]

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一种改进的小型化超宽带平面倒锥缝隙天线
张倩,刘运林,李智勇,王汇龙
0 字体:加大+\|默认\|缩小-
(西南交通大学电磁场与微波研究所，成都 610031)

摘要:

提出了一种改进的超宽带平面倒锥缝隙贴片天线，通过调整倒锥缝隙和倒锥贴片的形状，在更小尺寸条件下，实现了超宽带性能。天线总体尺寸为40 mm×40 mm× 1.5 mm。采用仿真软件分析了该天线的阻抗带宽、辐射方向图及增益特性。结果显示，该天线的回波损耗小于-10 dB的带宽为2.2 GHz到大于16 GHz，在低频段具有全向性，在3～14 GHz频段增益随频率的变化在4～7 dB之间。

关键词: 超宽带天线平面倒锥型天线缝隙天线小型化

DOI：

基金项目:教育部科技创新基金项目

A Modified Miniature Ultrawideband (UWB) Printed PICA-like Slot Antenna

ZHANG Qian,LIU Yun-lin,LI Zhi-yong,WANG Hui-long

(Institute of Electromagnetics, Southwest Jiaotong University, Chengdu 610031, C hina)

Abstract:

A modified ultrawideband (UWB) printed PICA（Planar Inverted Cone Antenna）-like slot antenna is presen ted.Through adjusting the shape of the solt and the patch,the proposed an tenna performances an ultrawideband characteristic with the overall size o f 40 mm×40 mm×1.5 mm. The impedance bandwidth, radiation patterns a nd gain are simulated. The results show that the proposed antenna achieves good impedan c e matching over an operating bandwidth of 2.2 GHz to more than 16 GHz. G ood omnidirectional pattern is obtained at lower frequencies, and consistent gai n (4～7 dB) is over 3～14 GHz.

Key words: ultrawideband(UWB) antenna planar inverted cone antenna (PICA) slot antenna mi niature