VIVALDI WITH TUNABLE NARROW BAND REJECTION

被引:6
作者
Hamid, M. R. [1 ,2 ]
Gardner, P. [1 ]
Hall, P. S. [1 ]
Ghanem, F. [1 ]
机构
[1] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[2] UTM, Fak Kejuruteraan Elekt, Johor Baharu 81310, Malaysia
基金
英国工程与自然科学研究理事会;
关键词
band rejection; cognitive radio; tunable; Vivaldi antenna; wideband antenna; ANTENNA;
D O I
10.1002/mop.25924
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel Vivaldi antenna is presented with tunable narrow band rejection characteristics within the overall operating bandwidth. A microstrip line resonator is incorporated within the Vivaldi antenna to give a narrow stop band action. Three varactors are loaded into the resonator and are used for tuning. The stop band can be activated in the frequency range between 2 and 7 GHz to give a very wide tuning ratio of 3.5:1. Good agreements between simulated and measured results are observed, which verify the design concepts. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1125-1128, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25924
引用
收藏
页码:1125 / 1128
页数:5
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