Study on Mutual Coupling Reduction Technique for MIMO Antennas
By Iram Nadeem, Dong-You Choi. IEEE Access, 2019
307 citations recorded by the source corpus.
In recent years, multiple-input-multiple-output (MIMO) antennas with the ability to radiate waves in more than one pattern and polarization play a great role in modern telecommunication systems. This paper provides a theoretical review of different mutual coupling reduction techniques in MIMO antenna systems. The increase in the mutual coupling can affect the antenna characteristics drastically and therefore degrades the performance of the MIMO systems. It is possible to improve the performance partially by calibrating the mutual coupling in the digital domain. However, the simple and effective approach is to use the techniques, such as defected ground structure, parasitic or slot element, complementary split ring resonator, and decoupling networks which can overcome the mutual coupling effects by means of physical implementation. An extensive discussion on the basis of different mutual coupling reduction techniques, their examples, and comparative study is still rare in the literature. Therefore, in this paper, different MIMO antenna design techniques and all of their mutual coupling reduction techniques through various structures and mechanisms are presented with multiple examples and characteristics comparison.
Subfields: Aerospace Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/e87f2e2ab63d361a345423dc50c27202616f4db8
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In Aerospace Engineering
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Citations in the corpus
- A Novel Slot-Array Defected Ground Structure for Decoupling Microstrip Antenna Array (2020, background): “Mutual coupling rises either by the large flow of surface current from the excited ports or space radiation and surface waves [2].”