IEEE Access | 卷:10 |
A Four-Port CSRR-Loaded Dual-Band MIMO Antenna With Suppressed Higher Order Modes | |
Jogesh Chandra Dash1  Debdeep Sarkar1  | |
[1] Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, India; | |
关键词: Complementary split ring resonator (CSRR); higher order modes (HOMs); microstrip antenna; multiple input multiple output (MIMO); | |
DOI : 10.1109/ACCESS.2022.3160831 | |
来源: DOAJ |
【 摘 要 】
In this paper, we propose a compact four-port dual-band MIMO antenna with suppressed higher order modes (HOMs). First, complementary split ring resonator (CSRR) loading is used on a square microstrip antenna to achieve simultaneous miniaturization and dual-band response. Next, the HOMs in the proposed CSRR loaded MIMO configuration are analysed using equivalent circuit model as well as surface current distribution plots. By placing a single shorting post close to antenna center line, these HOMs of the four-port dual-band MIMO antenna are then suppressed, while maintaining satisfactory mutual coupling (<−11 dB) and impedance matching (<−15 dB) performance in the operating band. Furthermore, simulated and measured values of total active reflection coefficient (
【 授权许可】
Unknown