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Impedance matching circuit and transmitting-receiving device and equipment

A technology of an impedance matching circuit and a transceiver device, applied in the field of communication, can solve the problems of poor terminal transmission and reception performance, affecting terminal transmission performance, etc.

Active Publication Date: 2019-04-05
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] An embodiment of the present invention provides an impedance matching circuit, a transceiver device, and a transceiver device to solve the problem that the current transceiver circuit will lead to poor transceiver performance of the terminal in a wider frequency band, thereby affecting the transmission performance of the terminal in a wider frequency band question

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  • Impedance matching circuit and transmitting-receiving device and equipment

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] It should be noted that " / " in this article means or, for example, A / B can mean A or B; "and / or" in this article is just an association relationship describing associated objects, indicating that there can be three A relationship, for example, A and / or B, can mean: A exists alone, A and B exist simultaneously, and B exists alone. "A plurality" means two or more than two.

[0023] The terms "first" and "second" in the specification and claims of...

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Abstract

The invention provides an impedance matching circuit and (a) transmitting-receiving device and equipment, relates to the technical field of communication, and aims at solving the problem that a present transmitting-receiving circuit causes low transmitting-receiving performance of a terminal in the broadband and further influences the transmission performance of the terminal in the broadband. Theimpedance matching circuit comprises a transmitting-receiving module, first and second amplification modules connected to the transmitting-receiving module, and a target matching module connected to the first and second amplification modules; the target matching module comprises M matching units, and M represents an integer greater than or equivalent to 3; and each among the M matching units is used to adjust the target resistance of the first or second amplification module under the condition that the working frequency of the transmitting-receiving module is in different frequency intervals.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to an impedance matching circuit, a transceiver device, and a transceiver device. Background technique [0002] With the development of wireless communication technology, the working frequency range that the terminal can use is getting wider and wider. [0003] At present, in the time division duplexing (time division duplexing, TDD) mode, the transceiver circuit used by the terminal includes a radio frequency transceiver, a low noise amplifier (low noise amplifier, LNA) and a power amplifier (PA, power amplifier) ​​connected to the radio frequency transceiver. ), matching module 1 connected to LNA, matching module 2 connected to PA, switch connected to matching module 1 or matching module 2, filter connected to switch, matching module 3 connected to filter, and matching module connected to 3 connected antennas. Wherein, during downlink transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/40H04B1/401
CPCH04B1/0067H04B1/40H04B1/401
Inventor 许清河翟敬全
Owner VIVO MOBILE COMM CO LTD
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