Unlock instant, AI-driven research and patent intelligence for your innovation.

An output matching circuit and a power amplifier composed thereof

A power amplifier and output matching technology, applied in power amplifiers, amplifiers with semiconductor devices/discharge tubes, amplifiers, etc., can solve the problems of difficult design, large number of components, and difficult integration, so as to reduce the difficulty of design, components Fewer, easy-to-integrate effects

Active Publication Date: 2020-10-13
曹秀妹
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution is that the high frequency / intermediate frequency / low frequency correspond to a set of power amplifiers and their output matching circuits, resulting in high cost, large number of components, difficult integration, and difficult design

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An output matching circuit and a power amplifier composed thereof
  • An output matching circuit and a power amplifier composed thereof
  • An output matching circuit and a power amplifier composed thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the embodiments of the present invention and the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the present invention, but not all embodiments.

[0043] figure 1 Illustrates the output matching circuit of the present invention, including:

[0044] Impedance conversion component 1; used for impedance conversion;

[0045] The first matching component 2 is connected to the input end of the impedance conversion component to establish matching to form different impedances so that low frequency / medium frequency / high frequency can pass.

[0046] Wherein, the first matching component 2 can adopt any existing matching circuit, which includes an impedance element and a controllable switching element that is tur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an output matching circuit and a power amplifier composed of it. The output matching circuit includes an impedance conversion component and a first matching component connected to the input end of the impedance conversion component to establish a match. The first matching circuit It includes resistive elements and controllable switching elements that are turned on / off controlled by external control signals to form different impedances. The output matching circuit provided by the present invention realizes the reconstruction of the output stage matching circuit and realizes the switching of the output working frequency band; it can be used for high frequency / intermediate frequency / low frequency, reduces the cost, has a small number of components, is easy to integrate and reduces the design difficulty; The output matching circuit can be used in a multi-band multiplexed power amplifier to realize a wide-band amplifier, reduce the number of components and material costs, and increase the system integration of the power amplifier.

Description

Technical field [0001] The invention relates to an output matching circuit and a power amplifier composed of the output matching circuit. Background technique [0002] For the diversified services provided by radio communications, radio equipment is required to operate in multiple frequency bands. For example, take the mobile phone cellular data radio frequency front end as an example, its power amplifier system currently needs to support high frequency bands, medium frequency bands, and low frequency bands. As technology evolves, more frequency bands need to be supported. The current solution is that the high frequency / intermediate frequency / low frequency corresponds to a set of power amplifiers and their output matching circuits, resulting in high cost, large number of components, integration difficulties, and design difficulties. In particular, in order to ensure the signal power and bandwidth transmitted to the 50 ohm end of the antenna, the broadband characteristics of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/56H03F3/19H03F3/21
CPCH03F1/565H03F3/72H03F3/245H03F2203/7209H03F2200/318H03F3/19H03F2200/111H03H7/38H03H2007/386
Inventor 曹秀妹
Owner 曹秀妹