Design of an Ultra Wide Band MIMO Microstrip Patch Antenna

The general objective of this paper is to analyze and design of Multiple input and multiple output (MIMO) antennas with a compact planar profile that operates in the entire UWB range (3.1- 10.6 GHz) and desired antenna performance characteristics. The study of this paper shows isolation structures and draft of two- element MIMO antennas for which techniques have been discussed to take the edge off mutual coupling that arises between the two elements. Two structures of multiple input and multiple output (MIMO) patch antenna have been designed and analyzed for their radiation characteristics, isolation, bandwidth and channel capacity. The antenna which has Multiple-Input-Multiple-Output (MIMO) system enhances the data speed and without added bandwidth or transmit power it increases the channel capacity with the technique of installing number of antennas to attain an array gain and diversity gain for transmission that results in refining the spectral efficiency and reliability. Seeing MIMO involves several antennas so mutual coupling is the challenge that rises. Altogether UWB MIMO system needs a more isolation of less than -16 dB and for fabrication purpose it must be compact to make it compatible with integrated circuit.