High Diversity Gain MIMO-Antenna for UWB Application with WLAN Notch Band Characteristic Including Human Interface Devices

In this paper, a UWB-MIMO antenna with the WLAN band-notch (5.1-5.85 GHz) characteristic is offered. This antenna consists of two radiated patch feeding with a tapered line and fabricated on abundantly available FR-4 substrate having the size of 36 x 22 x 1.6 mm(3). A notched-band response is achieved by introducing an open-ended stub on the ground plane. Results illustrate that the designed antenna has an impedance bandwidth from 3.1 to 11.2 GHz as well as good isolation i.e. S-21 <= - 30 dB. Radiation efficiency is greater than 0.75 except the notched band is < 0.5. Diversity performance is also set the new paradigm in terms of ECC (<= 0.008), TARC (<= - 25 dB), CCL (<= 0.3 bits/s/Hz), Mean effective gain ratio (MEGi) approximately equal to 1 and directive gain (>= 9.95 dB) except the notched band. Proposed antenna characteristics are also found suitable for a human interface device, low-cost, and easily fabricated. Simulated results of the proposed antenna are tested and verified by the experimental results.