Compact Differential Band-Notched Stepped-Slot UWB-MIMO Antenna With Common-Mode Suppression
Compact Differential Band-Notched Stepped-Slot UWB-MIMO Antenna With Common-Mode Suppression
复制标题
具有共模抑制功能的紧凑型差分带缺口阶梯式缝隙 UWB-MIMO 天线
DOI：
10.1109/lawp.2016.2592179
复制
发表时间：
2017-01-01
影响因子：
4.2
通讯作者：
Tu, Zhi-Hong
中科院分区：
文献类型：
--
作者：
Liu, Yan-Yan;Tu, Zhi-Hong
A compact printed differential multiple-input-multiple-output (MIMO) antenna is presented for ultrawideband system applications with band-notched characteristic. The proposed MIMO antenna element consists of a differential U-shaped microstrip feedline and a stepped-shaped slot, printed on the bottom and top of the substrate, respectively. A half-wavelength resonant stub embedded in the stepped-shaped slot is exploited to obtain notched band, whose center frequency can be adjusted by the length of the stub. The staged slots among antenna elements are introduced to enhance the differential isolation. The final antenna has a compact size of 44 x 44 mm(2). Measured results show that the proposed MIMO antenna achieves -10-dB impedance bandwidth from 2.95 to 10.8 GHz, isolation better than 15.5 dB over the whole operating band, and a notched band from 5.10 to 5.95 GHz.
