AAUモジュールのアルミニウムプロトタイプ

名前: Aluminum CNC machining prototype of 5G AAU module
Color: 自然な色
表面処理: バリ取り
Accuracy: +-0.02んん
材料: アルミニウム合金
処理サイクル: 3-7 working days
試験基準: 2D drawing file provided by the customer

AAUモジュールのアルミ筐体の放熱機能

大規模多入力多出力技術は5Gの中核技術の一つです. マルチアンテナ空間分割多重を使用してスペクトル効率を 2 倍に向上, ネットワークのカバレッジとシステム容量を強化する. Massive MIMO は以下のものを使用します 100 アンテナ, これは従来の基地局よりも一桁高い値です. したがって, より独立したデータストリームをシステムと端末間で送信できるようになります。, これにより、スペクトル効率とエネルギー効率が飛躍的に向上します。. アンテナ数の増加は信号処理方式の違いに直結します, 新たな問題や課題を引き起こす.

The Massive MIMO base station in the prior art generally adopts an all-digital architecture solution. Take 16-channel Massive MIMO base station as an example. The active antenna unit (AAU) is composed of a radio remote unit (RRU) and a passive antenna. The device architecture of the AUU supporting the antenna remote electronic adjustment function is shown in Figure 1.

その中で, an antenna has a total of 12 elements in the vertical direction. の 16 radio frequency channels are connected with the digital intermediate frequency, and the calibration network and the phase shift network are connected between the 16 radio frequency channels and the 16 wireless channels. In each radio frequency channel, a digital to analog converter (DAC) is connected to the transmitting channel. The transmitting channel is connected with a power amplifier (Power Amplifiers, PA), and an analog-to-digital converter (Analog to Digital Converter, ADC) is connected with the receiving channel. The receiving channel is connected to a low noise amplifier (Low Noise Amplifiers, LNA), the PA and LNA are connected to the antenna multiplexing unit, and the antenna multiplexing unit is connected to the filter.

しかし, in the prior art AUU device architecture, the feeder from the power amplifier to the antenna channel is longer, the loss is greater, and the insertion loss of the phase shift network is greater.

Aluminum housing prototype of AAU module