Wide Band Key Shaped ACS Fed MIMO Antenna for Wi-MAX/LTE Applications

This work presents a key shaped antenna applicable for wireless applications resonating at dual band resonances 2.36GHz-2.43GHz and 3.79GHz–9.27GHz employing wide range of application in WLAN, WiMAX, LTE and 5G bands. The proposed antenna with a key shaped single element is assembled on an FR-4 monolayer of thickness 1.6mm and dielectric constant 4.4 with dimensions
$11\times 18.2 \text{mm}^{2}$
advanced to MIMO with dimensions
$51.2\times 51.2\ \text{mm}^{2}$
. The printed key shaped antenna fed with ACS feeding technique avails the advantage of orthogonal ordering of elements as a means to reduce the coupling and boost the isolation between key shaped single elements. The peak gain of the antenna is monitored as 5.3dB. Parametric study is performed to observe return loss at respective configurations. Comparison of simulated results of diversity parameters using 3D EM simulation tool shows that the accuracy is achieved as the results match.