Broadband MIMO Antenna with Parasitic Strip for Wireless Applications

Abstract

A Compact broadband Multiple input multiple output (MIMO) antenna is presented with a parasitic strip which are widely used in wireless applications. The antenna parameters such as Gain, directivity, Envelope correlation coefficient, efficiency, radiation pattern and isolation have been studied for our antenna design and then fabricated. The proposed antenna primarily consists of a meander dipole, a concave parabolic reflector and a parasitic strip to enhance better impedance matching. The antenna dimensions are minimized by the use of parabolic reflector and also the directivity is improved. Besides these components, a dipole is used to intensify the isolation and to increase the bandwidth. Four antenna elements are placed orthogonal to each other for miniaturized size. Experimental results indicate the proposed MIMO array achieves a broad impedance bandwidth of 26.9%