A Low-Profile Dual-Polarized Directional Antenna for Enhancing Channel Capacity in Indoor MIMO Systems
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概要
- 論文の詳細を見る
The use of directional antenna and polarization diversity techniques has been reported to achieve good MIMO performance. Low-profile, small structures are required to configure the MIMO antenna with these techniques. First, we assume downlink transmission in indoor MIMO systems and present the design guidelines for the radiation pattern to obtain large channel capacity by the ray-tracing method. We then propose a uni-directional, dual-polarized MIMO antenna with a thickness of 0.24λ based on the design guidelines. The proposed antenna consists of dipole antennas mounted horizontally to the ground plane and cavity backed slot antennas for vertical polarization. We apply the proposed antenna to 2 × 2 MIMO transmission and demonstrate the effectiveness of channel capacity enhancement in an actual environment. The improvement factor is revealed to be +16.2% with place averaged value compared to sleeve antenna configuration.
- （社）電子情報通信学会の論文
- 2010-10-01
著者
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CHO Keizo
NTT DOCOMO, INC.
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Arai Hiroyuki
Yokohama National Univ. Yokohama‐shi Jpn
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Cho Keizo
Ntt Docomo Inc.
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Arai Hiroyuki
Graduate School Of Biotechnology The Univ. Of Tokyo
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Inoue Yuki
Research Laboratories Ntt Docomo Inc
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Cho Keizo
Ntt Docomo Inc. Yokosuka‐shi Jpn
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UCHIDA Daisuke
Graduate School of Engineering, Yokohama National University
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INOUE Yuki
NTT DOCOMO, INC., Research Laboratories
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Inoue Yuki
Ntt Docomo Inc. Research Laboratories
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Uchida Daisuke
Yokohama National Univ. Yokohama‐shi Jpn
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Uchida Daisuke
Graduate School Of Engineering Yokohama National Univ.
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Arai Hiroyuki
Graduate School Of Engineering Yokohama National Univ.
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