SIMULATION ANALYSIS OF MICROSTRIP ANTENNA MIMO 4X4 PATCH CIRCULAR 3.5 GHZ

Abstrak

MIMO 4x4 circular patch array antena design for 5G Cellular Communication Technology using CST Studio Suite 2019 software to obtain an antena that can work at a frequency of 3.5 GHz. This antena has a circular patch shape with a proximity coupled supply method and uses a 4x4 MIMO system with tiered impedance arranged using the array method. The material used to design this antena is an FR-4 Epoxy substrate with a dielectric constant (εr) of 4.3 with a thickness (h) of 1.6 mm. The antena will be analyzed starting from a single patch, two patches, four patches and MIMO 4x4 array patch. The parameter specifications used are return loss with a value of ≤ -10 dB, VSWR ≤ 2 dB. The design results on the 4x4 MIMO antena that have obtained the return loss value of Port 1 -21.8202 dB, Port 2 is -21.8180 dB, Port 3 is -21.8172 dB, Port 4 is -21.8212 dB, VSWR values on ports 1, 2, 3 and 4 show the number 1.176 getting the same value, Gain Port 1 is 9.321 dB, Port 2 is 9.356 dB, Port 4 is 9.356 dB, and Port 4 is 9.321 dB, and the radiation pattern is directional. The antena design has a patch radius of 10.4 mm with a total antena dimension of 1080 x 101.76 x 3.305 ????????3. The design results are in accordance with the initial specifications, so that the MIMO 4x4 circular patch antena can be realized at a frequency of 3.5 GHz.