IEICE Communications Express
Online ISSN : 2187-0136
A decoupling method for MIMO antennas by using a short stub
Takuya MiyasakaHiroshi SatoMasaharu Takahashi
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Keywords: MIMO, decoupling, short stub
JOURNALS FREE ACCESS

2018 Volume 7 Issue 10 Pages 364-368

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Abstract

In recent years, MIMO technology which uses multiple antennas has been introduced in mobile terminal to increase communication capacity. However, if MIMO antennas are put closely, a strong mutual coupling occurred. Then it causes decreasing radiation efficiency and channel capacity. Therefore, reducing the mutual coupling is required. In previous study, connecting MIMO antennas by inductor L or added branch elements to antennas instead of L. In this paper, we propose a novel decoupling method by using a short stub and confirm that proposed model performed decoupling, increased radiation efficiency.

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© 2018 The Institute of Electronics, Information and Communication Engineers
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