Design of Compact Common Radiator MIMO Antenna for X Band Applications

Abstract

A compact common radiator multi input multi output diversity antenna for X band wireless services is proposed in this paper. The antenna is printed over a low cost material in a space of 24.1x24.1 mm² employing defected ground isolation which helps in size reduction as well. The antenna also employs polarisation diversity by feeding the common radiator in orthogonal fashion. The antenna is resonant over the entire X band showing stable performance in terms of matching, reflection coefficient, gain, directivity, ECC and radiation efficiency. The simulations are carried out in Advanced Design System simulator and performance evaluated.