Paper Abstract and Keywords |
Presentation |
2017-08-25 10:55
Experimental Evaluation of Self-Interference Suppression Method Using 180 Degree Hybrid Circuit in MIMO Full-Duplex System Yoshiyuki Yamamoto (Tohoku Univ.), Riri Niizeki, Yudai Hashimoto (NIT, Sendai Collge), Naoki Honma (Iwate Univ.), Qiaowei Yuan (NIT, Sendai Collge), Quiang Chen (Tohoku Univ.) AP2017-82 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A self-interference suppression is essential for realizing the full-duplex system. We have proposed the self-interference suppression method at RF, where the end-fire-arranged Tx/Rx linear arrays combined with the multiple 180 degree-hybrids at Rx side are used. This report experimentally verifies the effect of the proposed analog-interference cancellation method. First, we present the feed network comprising the several 180 degree hybrids fabricated on a dielectric substrate. After that, we describe the experimental results of two sets of four-element-linear arrays in an anechoic chamber, where the center-to-center spacing of arrays was 3.2 m, and fabricated feed network was used at Rx side. The experimentation demonstrated the interference power is suppressed by 15 dB by the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
MIMO / full-duplex / self-interference / hybrid / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 181, AP2017-82, pp. 75-80, Aug. 2017. |
Paper # |
AP2017-82 |
Date of Issue |
2017-08-17 (AP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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AP2017-82 |
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