Wideband Two-Port Symmetrical Monopole Antenna with Broadside and Omnidirectional Radiation

被引:0
|
作者
Sonkki, Marko [1 ]
Antonino-Daviu, Eva [2 ]
Ferrando-Bataller, Miguel [2 ]
Salonen, Erkki [1 ]
机构
[1] Univ Oulu, Ctr Wireless Commun CWC, POB 4500, Oulu 90014, Finland
[2] Univ Politecn Valencia, Inst Telecommun & Multimedia Applicat ITEAM, Edificio 8G,Camino de Vera S-N, E-46022 Valencia, Spain
基金
芬兰科学院;
关键词
linear polarization; low correlation; MIMO; orthogonal modes; radiation pattern diversity; symmetrical feed; tapered slot antenna; ARRAY;
D O I
暂无
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
This paper presents a wideband miniaturized Vivaldi antenna with two excitation ports to create broadside and omnidirectional radiation patterns. The antenna is based on two Vivaldi monopoles implemented perpendicularly to a conductive ground plane, and oriented in opposite directions of the vertical symmetry axis. By exciting the ports in- and out- of phase, two orthogonal radiating modes can be excited. These modes present 96% and 120% simulated relative -10dB reflection coefficient bandwidth from 1.5GHz to 6GHz, depending on the excited mode, with total efficiency better than -1 dB. The studied low envelope correlation between the modes is predicting very good diversity or MIMO performance. Also the simulated surface current distributions and related radiation patterns in XY- and XZ-cut at 2 GHz, 4 GHz, and 6 GHz are presented and compared.
引用
收藏
页数:5
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