Radio frequency matching module and radio frequency system for mobile terminal

Abstract

The invention provides a radio frequency matching module and a radio frequency system for a mobile terminal, and belongs to the field of communication. The invention provides a radio frequency matching module comprising a first transmission line and a second transmission line, wherein one end of the first transmission line is connected with a zero potential end, the other end of the first transmission line is connected with an antenna input interface, and one end of the second transmission line is connected with the zero potential end; and the first transmission line is inductive or capacitive, and the second transmission line is capacitive or inductive. The matching combination is structurally similar to the L-shaped matching network, but does not adopt separate elements, but adopts wiring, the wiring length can be adjusted, and the matching objective is achieved by adjusting the length of two segments of wiring according to the load size.

Description

technical field [0001] The embodiment of the present invention relates to the communication field, and in particular to a radio frequency matching module used in a radio frequency system of a mobile terminal. Background technique [0002] Radio Frequency (RF) refers specifically to electromagnetic waves with a certain wavelength that can be used for radio communication. The high-frequency circuit used to generate radio frequency becomes a radio frequency circuit, which is basically composed of passive components, active devices and passive networks. With the development of communication technology, the frequency used by communication equipment is increasing day by day, radio frequency (RF) and microwave (MW) circuits are widely used in communication systems, and the field of radio frequency circuit design has received special attention from the industry. [0003] Electronic devices such as mobile phones that can transmit wireless signals must pay attention to impedance matc...

AI Technical Summary

Problems solved by technology

[0006] RF debugging is an important link in the terminal RF research and development process. The terminal power amplifier (poweramplifier, PA) supplier has a dedicated FAE to support the customer's RF debugging. The convergence problem has always been a difficult point in RF transmission debugging, and the convergence effect is always unsatisfactory. , even if it can pass the test and certification, other performance indicators have been compromised, and the margin is not enough

However, due to too many discrete components, this will not only increase the cost, but also make the PCB layout more inconvenient. At the same time, the debugging method is single, and it may encounter difficult problems.

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