高选择性陷波超宽带天线设计

doi:10.3969/j.issn.1001-2400.2016.01.008

J4 ›› 2016, Vol. 43 ›› Issue (1): 41-46.doi: 10.3969/j.issn.1001-2400.2016.01.008

高选择性陷波超宽带天线设计

李桐1,2;曹祥玉1;高军1;翟会清2;梁昌洪2

(1. 空军工程大学信息与导航学院，陕西西安 710077;
2. 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:2014-08-02 出版日期:2016-02-20 发布日期:2016-04-06
通讯作者: 李桐
作者简介:李桐(1988-), 女，讲师, 博士，E-mail：surgeonli4@163.com．
基金资助:
国家自然科学基金资助项目(61271100, 61471389, 61101066)；陕西省自然科学基础研究计划资助项目(2014JM8316)；中央高校基本科研业务费专项资金资助项目(JB140232)

Design of highly selective band-notched ultra-wideband antenna

LI Tong1,2;CAO Xiangyu1;GAO Jun1;ZHAI Huiqing2;LIANG Changhong2

(1. Information and Navigation College, Air Force Engineering Univ. of CPLA, Xi'an 710077, China;
2. Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an 710071, China)

Received:2014-08-02 Online:2016-02-20 Published:2016-04-06
Contact: LI Tong

摘要/Abstract

摘要：

研究了交指电容环和其对偶结构即互补交指电容环的谐振特性．与一般的谐振结构相比，交指电容环具有较大的等效电容，而互补交指电容环具有较大的等效电感，因此，这两种谐振环能够产生更低的谐振频率和更窄的谐振带宽．将这两种谐振环用于陷波设计，提出了一款具有四陷波特性的小型化超宽带天线．测试结果表明，该天线工作带宽覆盖范围为3～11GHz(电压驻波比小于2)，在3.5、5.2、5.8和7.5GHz处形成了4个尖锐的陷波，避免滤除有用频段造成频谱的浪费．此外，交指电容环与互补交指电容环的加载并不影响工作频段内天线的性能．

关键词: 小型化天线, 超宽带, 尖锐陷波, 交指电容环

Abstract:

The resonant properties of the interdigital capacitance loading loop resonator (IDCLLR) and its dual counterpart complimentary interdigital capacitance loading loop resonator (CIDCLLR) are studied. Due to the high capacitance/inductance of the IDCLLR/CIDCLLR, the resonators can generate lower resonant frequencies and narrower resonant bandwidths than many other structures. A compact ultra-wideband (UWB) antenna with quadruple sharp band-notching characteristics is presented by utilizing IDCLLRs and CIDCLLRs. Measured results show that the proposed antenna has a wide bandwidth from 3 to 11GHz(VSWR<2), with four sharp notched bands centered on 3.5, 5.2, 5.8 and 7.5GHz, respectively, avoiding the elimination of many useful frequencies. Moreover, the presence of IDCLLRs and CIDCLLRs scarcely affects the performance of the UWB antenna at its operating frequencies.

Key words: compact antenna, ultra-wideband (UWB), sharp band-notched, interdigital capacitance loading loop resonator(IDCLLR)

李桐;曹祥玉;高军;翟会清;梁昌洪. 高选择性陷波超宽带天线设计[J]. J4, 2016, 43(1): 41-46.

LI Tong;CAO Xiangyu;GAO Jun;ZHAI Huiqing;LIANG Changhong. Design of highly selective band-notched ultra-wideband antenna[J]. J4, 2016, 43(1): 41-46.

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高选择性陷波超宽带天线设计

Design of highly selective band-notched ultra-wideband antenna

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