Aluminium prototype af AAU modul

Navn: Aluminum CNC machining prototype of 5G AAU module
Color: natural color
Overfladebehandling: afgratning
Accuracy: +-0.02mm
Materiale: aluminiumslegering
Behandlingscyklus: 3-7 working days
Test standard: 2D drawing file provided by the customer

Varmeafledningsfunktion af AAU-modulets aluminiumshus

Storskala multiple input multiple output-teknologi er en af ​​kerneteknologierne i 5G. Brug af multi-antenne space division multiplexing for at fordoble spektrumeffektiviteten, forbedre netværksdækningen og systemkapaciteten. Massive MIMO bruger mere end 100 antenner, som er en størrelsesorden højere end traditionelle basestationer. Derfor, mere uafhængige datastrømme kan transmitteres mellem systemet og terminalen, derved eksponentielt forbedre frekvenseffektiviteten og energieffektiviteten. Stigningen i antallet af antenner fører direkte til forskellen i signalbehandlingsmetoder, skaber nye problemer og udfordringer.

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.

Blandt dem, an antenna has a total of 12 elements in the vertical direction. Det 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.

Imidlertid, 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