Design and Implementation of a Planar MIMO Antenna for LTE-Applications

Abstract: Modern communication systems demand the use of antennas that are light weight, easy to excite and performance over wide range of frequencies. In addition to that, there is a need to implement antennas that have high gain and flexibility. Moreover using two or more antennas to cover various frequency bands will increase the system cost. This leads to the development of MIMO antenna which consists of the micro-strip patch. The main objective of this paper is to design a MIMO antenna which has four radiating elements that are separated by placing 2 L-shaped metallic structures and a Slotted Ground Plane which reduces the correlation coefficient between them. Mutual coupling is reduced by applying the polarization diversity which is achieved by placing the elements orthogonal to each other. Since the gain is more than a single element and gives multiple frequency bands, makes it suitable for LTE applications.

Keywords: MIMO; Correlation; Mutual Coupling; Polarization Diversity; SGP; Micro strip; LTE