Development of coupling and decoupling networks below 150 kHz

Kuwabara,; Hiroshima,

doi:10.1109/elmagc.1997.617044

Cited by 2 publications

(1 citation statement)

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“…Decoupling networks [134], [135] are used to achieve better isolation in the MIMO antenna systems. This works on the principle of transformation of cross-admittance term to purely imaginary value by adding transmission lines or by discrete components.…”

Section: Decoupling Networkmentioning

confidence: 99%

Study on Mutual Coupling Reduction Technique for MIMO Antennas

2019

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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.

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Section: Decoupling Networkmentioning

confidence: 99%