Radio frequency front-end module and 5G large-scale MIMO base station system

Abstract

The invention discloses a radio frequency front-end module and a 5G large-scale MIMO base station system. The module comprises a plurality of transceiving channels, wherein each transceiving channel comprises a switch and a low-noise amplifier module, one end of the switch is connected with the RFIN end, one end of the switch is connected with the Load end, and the other end of the switch is connected with the low-noise amplifier module. The use of a high-power and high-return-loss switch in each path of transmitting and receiving channel enables the transmitting and receiving channel to work normally under high power, so that the power of the transmitting channel is improved; secondly, the GaAs low-noise amplifier module with high performance and multiple gain modes improves the performance and the dynamic range of a transmitting and receiving channel, wherein each module can integrate two channels, so that the radio frequency front-end system of the base station is more compact and lower in cost; finally, due to high-isolation chip packaging, the coupling influence between channels and ports which do not interfere with each other is avoided. According to the invention, the problems of high power, multiple channels, high performance, high integration and low cost in a 5G large-scale MIMO base station system are solved.

Description

technical field [0001] The invention relates to the field of radio frequency front-end technology, in particular to a radio frequency front-end module and a 5G massive MIMO base station system. Background technique [0002] In the post-deployment of 4G LTE base stations, large-scale multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) wireless technology is widely used, especially in dense urban areas, small base stations effectively fill the signal coverage gap, At the same time, the speed of data service is improved. Because this architecture itself has the required spectrum efficiency and transmission reliability, it has also become the preferred architecture for the rapidly developing 5G network communication system. However, when this technology is used in 5G communication systems, designers must greatly increase the channel count of transceivers in multiple frequency bands, while compressing all the necessary hardware into the same size or smaller spa...

AI Technical Summary

Problems solved by technology

Secondly, adding more transceiver channels in the 5G base station system, although higher throughput can be obtained, but each transceiver channel needs to be implemented at a higher RF power level

In order to achieve higher RF power, base station designers have little choice in the RF front-end design, and more can only rely on traditional solutions that require high bias power and complex peripheral circuits, which makes the design more difficult to target

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