Radio frequency structure and mobile terminal

Abstract

The embodiment of the invention discloses a radio frequency structure and a mobile terminal. The radio frequency structure comprises a frequency conversion module, an antenna module and a signal processing module, the frequency conversion module is electrically connected with the antenna module and the signal processing module, and the frequency conversion module is used for receiving multi-frequency receiving signals transmitted by the antenna module. The antenna module converts the multi-frequency receiving signal into a single-frequency receiving signal and transmits the single-frequency receiving signal to the signal processing module, receives a single-frequency transmitting signal transmitted by the signal processing module, converts the single-frequency transmitting signal into a multi-frequency transmitting signal and transmits the multi-frequency transmitting signal to the antenna module, thereby reducing components and paths of a radio frequency structure, and improving the reliability of the antenna module. The radio frequency structure is simplified.

Description

technical field [0001] The invention relates to the technical field of radio frequency structures, in particular to a radio frequency structure and a mobile terminal. Background technique [0002] Spectrum resources are very precious resources in nature. At the beginning of the design of the communication system, in order to prevent each communication from interfering with each other, different frequency bands are designed to use different frequencies. This also makes the RF system based on frequency when designing communication equipment. Taking mobile phones as an example, such as figure 1 As shown in the radio frequency structure of the conventional mobile phone, at the back end of the antenna, RF (Radio Frequency, radio frequency) is divided into different channels according to different frequency bands, and transmits signals and receives signals, and connects different frequency bands of Transceiver (radio transceiver) The interface, in each channel of different freque...

AI Technical Summary

Problems solved by technology

Taking mobile phones as an example, such as figure 1 As shown in the radio frequency structure of the conventional mobile phone, at the back end of the antenna, RF (Radio Frequency, radio frequency) is divided into different channels according to different frequency bands, and transmits signals and receives signals, and connects different frequency bands of Transceiver (radio transceiver) The interface, in each channel of different frequency bands, needs to be equipped with different filter devices, such as SAW filters, duplexers, PA (power amplifiers) also need to support multi-frequency, different frequency bands of radio transceivers The output end of the PA is connected to the interface of the corresponding frequency band of the PA, the output end of the PA in different frequency bands is connected to the corresponding duplexer, the duplexer is connected to the switch, and the switch is connected to the antenna module. In the process of research and practice of the existing technology Among them, the inventors of the present invention found that the conventional mobile phone radio frequency structure requires many components and paths, and the structure is complex

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