共有可能な小セル無線ユニットを使用する5G NRアプリケーションのためのダブルバンド複合高得益MIMOアンテナ
Asadullah1, Nosherwan Shoaib2, Muhammad U Khan1
1School of Electrical Engineering and Computer Science (SEECS), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan.
Scientific reports
|February 15, 2026
まとめ
本研究では,5G通信のための新しい4要素MIMOアンテナを提示し,5G NR FR1およびFR2バンドでデュアルバンド共鳴を達成し,性能とカバーを向上させています.
科学分野:
- 電気工学 電気工学とは
- アンテナ理論 (アンテナ理論)
- ワイヤレス通信 ワイヤレス通信
背景:
- 5G New Radio (NR) は,さまざまな周波数帯 (FR1およびFR2) で動作できるアンテナを必要とします.
- 既存のアンテナソリューションは,高得益と幅広い帯域幅の高効率の双帯域共鳴を達成するためにしばしば苦労します.
- オープン無線アクセスネットワーク (Open Radio Access Network,Open RAN) の仕様は,小型セル展開のためにコンパクトで高性能なアンテナを必要とします.
研究 の 目的:
- 5G NR FR1およびFR2帯用の新しい複合MIMOアンテナエレメントを設計し,検証する.
- デュアルバンド共鳴を実現するために,顕著な増強強化と幅広いインピデンス帯域幅.
- Open RANに適合する5G小型セル無線ユニットの厳格な要件を満たすために.
主な方法:
- U形の導電構造と,波動したバレル型電気共振アンテナ (PB-DRA) を組み合わせた複合アンテナ要素が設計されました.
- U形構造は,寄生性の刺激と増強のためのバウ-タイのパッチでロードされました.
- PB-DRAは,介電常数8で設計され,FR2共振のための高級モードで刺激されました.
主要な成果:
- 提案されたアンテナは,3.85GHz (FR1) と 26.65GHz (FR2) で二重帯域共振を示し,大きな周波数比を示しています.
- 2.02GHz (FR1) と 5.3GHz (FR2) のインペダンス帯域幅を達成しました.
- 8.23dB (FR1) と13.14dB (FR2) のピーク・ゲインが記録され,終火放射の特徴を示した.
結論:
- 開発された複合MIMOアンテナは,5G NRのFR1およびFR2帯に不可欠なダブルバンド操作を効果的に提供しています.
- アンテナの設計はOpen RANの仕様を満たし,5Gの小セルアプリケーションに高得益と幅広い帯域幅を提供します.
- このアンテナは,広く分離された周波数帯で効率的な動作を可能にし,マルチオペレーター無線アクセスネットワーク (MORAN) をサポートし,堅固な屋内/屋外カバーを確保します.
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