Abstract
In this article, a triple band-notched super-wideband (SWB) monopole antenna is designed and manufactured. The measured working frequency band (out of the filters working band) ranges from 2.5 to 20 GHz. A single radiating element is utilized to analyze and implement various MIMO antennas, with isolation between the antenna ports higher than 15 dB. Two parallel-fed elements SWB MIMO antenna and four parallel-fed elements SWB MIMO antennas are presented. Metallic barriers with different shapes are used to improve the isolation among ports from a low unacceptable value of 12 dB to a value higher than 20 dB within most of the working frequency band. S-parameters of the presented SWB MIMO antennas experimentally shows that antennas perform well up to 20 GHz, which is the highest frequency supported by the available Vector Network Analyzer used in the S parameters measurements. Satisfactory performance is observed up to 50 GHz by computer simulations using the CST software.
Highlights
A great number of researches addressing the design and performance study of Ultra-Wide Band (UWB) antenna have been done since the introduction of unlicensed UWB band of 3.1–10.6 GHz at 2002 for Ultra-Wide Band communications [1].To get a high bit rate over a super wide operating band, super wide band Multiple-Input Multiple-Output (MIMO) antennas should be designed
It can be seen that at 3 GHz, the single element SWB antenna is almost omnidirectional with its minimum value at 270° which represents the direction of the other element
At 5 GHz, the single element SWB antenna is almost omnidirectional with its minimum value at 270°
Summary
A great number of researches addressing the design and performance study of Ultra-Wide Band (UWB) antenna have been done since the introduction of unlicensed UWB band of 3.1–10.6 GHz at 2002 for Ultra-Wide Band communications [1]. To get a high bit rate over a super wide operating band, super wide band Multiple-Input Multiple-Output (MIMO) antennas should be designed. The main objective of this work is to design SWB MIMO antenna with band reject capability. This can be done designing SWB MIMO antennas adding to it band reject filters. Using 2*2 MIMO antennas, bit rate can be doubled. Bit rate can be tripled or even quadrupled using 4*4 MIMO antennas as shown in [2,3,4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
