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DUAL POLARIZED UWB MIMO ANTENNA WITH ELLIPTICAL POLARIZATION FOR ACCESS POINT WITH VERY HIGH ISOLATION USING EBG AND MSR

By G. Irene and A. Rajesh

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Abstract:
A compact microstrip fed dual polarized Ultra Wide Band (UWB) monopole Multiple Input Multiple Output (MIMO) antenna for access point application in Wireless Body Area Networks (WBAN) is proposed. The antenna is elliptically polarized in the 6 to 10.6 GHz band. The proposed structure possesses high isolation with the introduction of Modified Serpentine Structure (MSS) that behaves as a decoupling unit (DU). To further reduce the coupling and to improve the impedance bandwidth, an Electromagnetic Band Gap (EBG) structure is introduced. The proposed antenna has a wide impedance bandwidth with S11 < -10 dB in the UWB from 3.1-10.6 GHz and has a high isolation S21 < -25 dB. The antenna has a fractional bandwidth of 106%. The radiation pattern of the antenna is omnidirectional. The Envelope Correlation Coefficient (ECC) is equal to zero, and the capacity loss is 0.264 which proves the diversity characteristics of the proposed antenna.

Citation:
G. Irene and A. Rajesh, "Dual Polarized UWB MIMO Antenna with Elliptical Polarization for Access Point with Very High Isolation Using EBG and MSR," Progress In Electromagnetics Research C, Vol. 99, 87-98, 2020.
doi:10.2528/PIERC19111706

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