Study of Decoupling between Closely Spaced Microstrip MIMO antennas using Microstrip Resonator

Mapping Intimacies ◽

10.21203/rs.3.rs-216343/v1 ◽

2021 ◽

Author(s):

Swati Bhattacharjee ◽

Chandan Kumar Ghosh

Keyword(s):

Wireless Communication ◽

Resonant Frequency ◽

Communication System ◽

Mutual Coupling ◽

Satellite Communication ◽

Microstrip Resonator ◽

Mimo Antennas ◽

Major Disadvantage ◽

Data Transferring

Abstract This paper presents a novel decoupling technique between two closely spaced MIMO antennas whose edge to edge spacing is0.03λ (1.975mm).A microstrip resonator is used in between the antennas that act as a decoupled device. The MIMO plays an important role in the current communication system due to its enhanced data transferring rate. However, the closely spaced MIMO antennas have a major disadvantage of high mutual coupling (MC). MC affects the entire characteristics of MIMO antennas and as a result, the performance of the antenna degrades. To overcome this problem, we have introduced a microstrip resonator that acts as an electrical wall between the MIMO antennas. The antenna has been simulated by using an IE3D EM simulator and a suppression of 48dB MC is achieved at a resonant frequency of 4.85 GHz. The MIMO antennas have been fabricated and the results are compared with the simulated ones. This antenna can be used in wireless communication, WLAN and satellite communication.

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Charging Time Control of Wireless Power Transfer Systems Without Using Mutual Coupling Information and Wireless Communication System

IEEE Transactions on Industrial Electronics ◽

10.1109/tie.2016.2598725 ◽

2017 ◽

Vol 64 (1) ◽

pp. 228-235 ◽

Cited By ~ 34

Author(s):

Wenxing Zhong ◽

S. Y. Ron Hui

Keyword(s):

Wireless Communication ◽

Communication System ◽

Mutual Coupling ◽

Wireless Power Transfer ◽

Power Transfer ◽

Wireless Power ◽

Wireless Communication System ◽

Time Control ◽

Charging Time

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Electromagnetic Soft Surface (EMSS) Integrated MIMO Antennas With Reduced Mutual Coupling And Cross-Polarization Radiation

10.21203/rs.3.rs-512394/v1 ◽

2021 ◽

Author(s):

Swati Bhattacharjee ◽

Santimoy Mandal ◽

Chandan Kumar Ghosh

Keyword(s):

Microstrip Antenna ◽

Mutual Coupling ◽

Return Loss ◽

Satellite Communication ◽

Antenna System ◽

Cross Polarization ◽

Mimo Antenna ◽

Mimo Antennas ◽

At Resonance ◽

Soft Surface

Abstract For closely spaced microstrip antenna elements, Mutual Coupling (MC) is an inevitable phenomenon which degrades antenna performances like gain, radiation pattern, return loss, radiation efficiency etc. Lot of works have been done on the reduction of MC and published the results in the open literatures. This paper presents an approach to suppress MC between two closely spaced microstrip radiators. This is achieved by inserting properly designed EMSS structure between the radiating elements. This EMSS acts as an electrical wall between two rectangular patches and reduces mutual coupling up to 50 dB at resonance frequency of 4.35 GHz. In this attempt, Cross Polarization (XP) reduction of 12.5dB has also been achieved with a gain 5.40dBi for the proposed antenna. The centre to centre spacing between the antenna elements is taken as 22.1mm (0.32λ).The proposed MIMO antenna system can be used for satellite communication and radar system.

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