RF-MEMS Switch for Reconfigurable With Half-Moon Slots on Elliptical-Shaped Patch Antenna for 5G Applications
Ketavath Kumar Naik, B. V. S. Sailaja
Abstract
A compact dual-band reconfigurable elliptical-shaped patch antenna designed in this article. The proposed patch antenna with rectangular strip lines and an elliptical with half-moon slots presented to operate dual bands. To achieve the reconfigurability, RF-MEMS switches proposed on rectangular strip lines of the patch antenna. The capacitive shunt type RF-switch designed the proposed elliptical antenna to operate at 5G applications. The displacement of the proposed RF-MEMS switch with an air gap of 3lm, the actuation of 5.02 V, and the stress of the proposed beam is bearable up to 85.7 MPa is observed. The reconfigurable elliptical-shaped patch antenna resonates at 8.34 GHz and 10.47 GHz with a reflection coefficient of -32.28 dB and -22.7 dB respectively. The operating frequencies and gains are observed at the RF-MEMS switch placed on a patch for dual bands for four states. At the state-I, two operating frequencies and gain are 8.4G Hz, and 10.52G Hz with 2.28 dBi, and 2.18 dBi. Similarly, state-II frequencies are 8.56 GHz, and 10.55 GHz with gains of 2.08 dBi, and 1.30 dBi; state-III frequencies are 8.49 GHz, 10.47 GHz with gains of 2.48 dBi, and 3.04 dBi; and state-IV, frequencies are 8.49 GHz, 10.49 GHz with gain of 2.58 dBi, and 2.64 dBi. The compact elliptical patch antenna was simulated and a measured value is presented in this article and also both values are agreed.