Cell phone capable of receiving and transmitting multi-frequency-band signal

Abstract

The invention discloses a cell phone capable of receiving and transmitting multi-frequency-band signal, and the cell phone comprises a baseband chip, a radio frequency circuit, a first antenna and a second antenna, wherein the first antenna and the second antenna have different work frequency bands; one end of the radio frequency circuit is respectively connected with the first antenna and the second antenna; and the other end of the radio frequency circuit is connected with a phase circuit of the baseband chip. According to the cell phone capable of receiving and transmitting the multi-frequency-band signal disclosed by the invention, each antenna does not bear a task of receiving and transmitting radio frequency signals of a plurality of the frequency bands in the prior art, so that the defect in the prior art that the design of a single antenna requires that the antenna has a larger size is overcome and the space in a cell phone shell can be more effectively utilized; and therefore, the structural design of the cell phone is more flexile, the volume of the cell phone is convenient to reduce, and the portability of the cell phone is improved.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to the radio frequency technology of a mobile phone. Background technique [0002] The mobile phone antenna is an important part of the mobile phone, which is used to receive and transmit electromagnetic wave signals to achieve the purpose of communication. In the prior art, no matter it is the GSM (global system for mobile communications, Global System for Mobile Communications) standard or the WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) standard, only one antenna is set, which is used for both sending and receiving high High frequency signals are also used to send and receive low frequency signals. For example, the China Intellectual Property Office disclosed a mobile phone antenna on December 29, 2010. Its publication number is CN 201689979U. The mobile phone antenna includes a monopole antenna and a ground terminal. The monopole...

AI Technical Summary

Problems solved by technology

[0010] The mobile phone provided by the present invention can transmit and receive multi-band signals, because each antenna no longer undertakes the task of transmitting and receiving radio frequency signals in multiple frequency bands like the prior art, which solves the problem that the single-antenna design in the prior art requires the antenna to have a larger size Defects, can more effectively use the space in the mobile phone shell, make the mobile phone structure design more flexible, facilitate the reduction of the size of the mobile phone, and improve the portability of the mobile phone

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