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Radio frequency front end transmitting method and module, chip and communication terminal

A radio frequency front-end and transmitting module technology, applied in the field of wireless communication, can solve the problems of inability to guarantee the working current of the radio frequency front-end module, the stability of linearity output power, and the loss of radio frequency signals, so as to reduce the loss and improve the work efficiency.

Active Publication Date: 2016-11-23
VANCHIP TIANJIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since radio frequency signals of different frequency bands in different modes have different requirements, the radio frequency front-end module is easy to cause loss of radio frequency signals in the process of outputting radio frequency signals of different frequency bands in different modes, and the radio frequency cannot be guaranteed. The working current, linearity and output power stability of the front-end module

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  • Radio frequency front end transmitting method and module, chip and communication terminal
  • Radio frequency front end transmitting method and module, chip and communication terminal
  • Radio frequency front end transmitting method and module, chip and communication terminal

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Embodiment Construction

[0040] The technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] First of all, it needs to be explained that in each embodiment of the present invention, the communication terminal involved refers to a computer device that can be used in a mobile environment and supports various communication systems such as GSM, EDGE, TD_SCDMA, TDD_LTE, and FDD_LTE, including mobile phones , laptops, tablets, car computers, etc.

[0042] figure 1 Shown is a functional block diagram of an existing multi-mode multi-frequency front-end module. Such as figure 1 As shown, the multi-mode multi-frequency front-end module includes an input matching circuit 101 , an amplification unit 102 , an output matching circuit 103 , a switching unit 104 and a control unit 100 . Wherein, an input matching circuit 101 is provided between the radio frequency signal input terminal and the input termina...

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Abstract

The invention discloses a radio frequency front end transmitting method and module, a chip and a communication terminal. The radio frequency front end transmitting method includes: allowing the output matching circuit of at least one transmitting closed circuit to be connected to a switching unit, and allowing the output matching circuit to be connected to a radio frequency transmitting path through the switching unit; allowing the output matching circuit of at least one another transmitting closed circuit to be directly connected to the radio frequency transmitting path. The radio frequency front end transmitting method has the advantages that transmitting closed circuits matched with different frequency bands under different modes can be selected, a control unit can be used to control on and off of corresponding amplifying units and switching units so as to output radio frequency signals of different frequency bands under different modes, and accordingly the efficiently of a radio frequency front end transmitting module is increased and loss of the radio frequency signals on the transmitting closed circuits is lowered.

Description

technical field [0001] The invention relates to a radio frequency front-end transmitting method and a transmitting module, and also relates to an integrated circuit chip and a communication terminal using the radio frequency front-end transmitting module, belonging to the technical field of wireless communication. Background technique [0002] With the continuous advancement of global technology, mobile communication technology has gradually evolved from 2G to 4G through 3G. At present, the number of 4G_LTE frequency bands is relatively large, and the distribution is relatively scattered. The frequency bands and modes used by various mobile communication technologies are different. For manufacturers of new-generation mobile communication equipment, it is necessary to design communication devices that can use multiple frequency bands and modes. [0003] The radio frequency front-end module is an important radio frequency component that cannot be integrated by the transceiver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04
CPCH04B1/0483H04B1/0458H04B1/006H04B1/04H04B1/0067H04B1/44H04B7/08
Inventor 陈吉
Owner VANCHIP TIANJIN TECH