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2015-09-15
Compact Triple Band-Notched UWB MIMO Antenna with Simple Stepped Stub to Enhance Wideband Isolation
By
Progress In Electromagnetics Research Letters, Vol. 56, 59-65, 2015
Abstract
In this paper, a very compact ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna, with a high isolation and triple notched bands, is proposed. Its size is dramatically decreased to 30×26×0.8 mm3 on a cost-effective FR4 substrate. It consists of two rectangular printed monopole (PM) elements and a simple stepped ground stub to enhance wideband isolation. For two different rejected bands of the wireless local area network (WLANs) covering 5.15-5.35 and 5.72-5.825 GHz, four parasitic C-shaped split-ring resonators (PCSRR) are placed on either side of the feed line. By etching two inverted U-shaped slots on the center of the patch, the notched frequency at 4 GHz C-band (3.7-4.2 GHz) of satellite communication systems is obtained. The results of simulation and measurement prove a bandwidth of S11<-10 dB and S12<-21 dB over the whole band (3.1-11.2 GHz) excluding the three independently adjustable rejection bands. Hence, the proposed UWB MIMO antenna has a very small size, simple structure, higher isolation and three narrower notched bands which effectively save more useful frequencies. Moreover, it is a good candidate for wireless portable UWB MIMO applications.
Citation
Hui-Fen Huang Shu-Guang Xiao , "Compact Triple Band-Notched UWB MIMO Antenna with Simple Stepped Stub to Enhance Wideband Isolation," Progress In Electromagnetics Research Letters, Vol. 56, 59-65, 2015.
doi:10.2528/PIERL15081405
http://www.jpier.org/PIERL/pier.php?paper=15081405
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