A compact planer UWB antenna with band-notched characteristics

Ibrahim, Ahmed A.; Hamed, Hesham F. A.; El-Din, Mohammed Alla; Abdel-alla, Azhar; Yahia, Eman

doi:10.1109/icengtechnol.2014.7016766

Cited by 12 publications

(1 citation statement)

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“…To overcome the issues such as interference and multipath fading in wideband systems, multi-inputmulti-output (MIMO) technology had become attractive to the researchers in the field of wireless applications [5,6]. One of the major benefits of MIMO system is allowing multipath access in using different services simultaneously, and also improving the channel capacity [7,8]. MIMO systems have a constraint for distance between two antenna elements.…”

Section: Introductionmentioning

confidence: 99%

A compact two element MIMO antenna with improved isolation for wireless applications

Ashwath

Ali

2019

J. Inst.

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This paper presents a compact 55× 20 mm2 wideband multi-input-multi-output (MIMO) antenna. The proposed structure consists of two antenna elements excited using CPW feeding technique and is printed on a low cost and easily available FR4 substrate. In the proposed MIMO design, the first antenna at port 1 is fixed in its position and orientation while, the second antenna at port 2 is placed in six different orientations by keeping the overall dimension constant. The observation is made on the variation in the insertion loss as the orientation of the second antenna is altered. With this analysis, the orientation of second antenna element giving the least interference and insertion loss is proposed, and all the parameters are studied. The proposed design exhibits an average peak gain greater than 2.8 dBi, envelope correlation coefficient (ECC) less than 0.0001, insertion loss less than -38 dB and stable radiation patterns over the entire wide bandwidth. The antenna operation (i.e. |S11| and |S22|<-10 dB) ranges from 4.1 to 6.4 GHz at port 1 and 4.35 to 6.5 GHz at port 2, thereby making the antenna suitable for Wireless Local Area Network (WLAN) and Wireless Fidelity (Wi-Fi) applications.

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