Design of MIMO Antenna for 5G Smartphone Application Using Decoupling Structure

EasyChair Preprint 7727

Abstract

In this paper, a 5G MIMO antenna system is designed with self-decoupling technique in mobile terminals. The MIMO system has pair of antenna blocks placed on the long frame of the smartphone system, each block consists of two closely spaced antenna elements. A grounding block is shared to pair of antennas forming compact decoupling structure. The MIMO array is tuned to operate in the n78 band (3.6-3.8GHz) with isolation lower than -18 dB in the entire band of operation. The system operates with total efficiency greater than 60%, and gain greater than 4.5 dB in the utilization band. The MIMO parameters such as ECC and DG are calculated and is observed to be lower than 0.13 and 10 dB respectively, ensuring satisfactory MIMO operation.In this paper, a 5G MIMO antenna system is designed with self-decoupling technique in mobile terminals. The MIMO system has pair of antenna blocks placed on the long frame of the smartphone system, each block consists of two closely spaced antenna elements. A grounding block is shared to pair of antennas forming compact decoupling structure. The MIMO array is tuned to operate in the n78 band (3.6-3.8GHz) with isolation lower than -18 dB in the entire band of operation. The system operates with total efficiency greater than 60%, and gain greater than 4.5 dB in the utilization band. The MIMO parameters such as ECC and DG are calculated and is observed to be lower than 0.13 and 10 dB respectively, ensuring satisfactory MIMO operation.

Keyphrases: Diversity Gain (DG), Envelope Correlation Coefficient (ECC), Fifth –generation (5G), Multiple Input Multiple Output (MIMO), compact decoupling structure, n78 band, self-decoupling technique

@booklet{EasyChair:7727,
  author    = {Abi T M Zerith and Angel P Rajam and Mallipeddi Samyuktha and Jasmine A Sheeba and Shiney V Rebecca and M Nesasudha},
  title     = {Design of  MIMO Antenna for 5G Smartphone Application Using Decoupling Structure},
  howpublished = {EasyChair Preprint 7727},
  year      = {EasyChair, 2022}}