Radio frequency amplification device

Abstract

The invention discloses a radio frequency amplification device. The device comprises a first input path, a second input path and a radio frequency switch network. The first input path and the second input path separately comprise an input matching network, a power amplifier and a power amplifier output matching network that are in sequence connection. Inputs of the first input path and the second input path are separately connected to a radio frequency transceiver. The first input path and the second input path are each constructed to amplify and process, on the basis of a power amplifier, a plurality of paths of radio frequency signals of different frequency bands or modes. A plurality of output paths with outputs connected to an antenna and being corresponding to the frequency bands or modes of the radio frequency signals are constructed in the radio frequency switch network. The radio frequency switch network is constructed to control and access, according to the frequency band or mode of the radio frequency signal, a corresponding output path in the radio frequency switch network, so as to realize output of the radio frequency signal. Compared with the prior art, the radio frequency amplification device not only has a small volume and a low cost, but also has high anti-interference and high promotional value.

Description

technical field [0001] The invention relates to the communication field, in particular to a radio frequency amplification device. Background technique [0002] In the wireless transmitter modules of various communication systems, in order to achieve sufficient output power to meet the requirements of the communication distance, the output end of the transmitter is often constructed with a power amplifier module (radio frequency amplification device). With the evolution of mobile communication technology and the explosive growth of user demand, the Ministry of Industry and Information Technology has allocated multiple frequency bands and modulation methods for wireless communication. In this case, in order to ensure the versatility of the communication equipment, it is required that the communication equipment can meet the requirements of different operating frequencies and standards at the same time (for example, a multi-mode and multi-frequency mobile phone supporting multi...

AI Technical Summary

Problems solved by technology

The multi-mode and multi-frequency amplification solutions in the prior art can no longer meet the mobile phone design requirements of continuously reducing the size and cost of mobile phones

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