Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Broadband power amplifier circuit

A technology of power amplifiers and operational amplifiers, applied in power amplifiers, amplifiers, amplifiers with semiconductor devices/discharge tubes, etc., can solve the problems of unfavorable signal amplification, complex circuit structure, and insufficient power amplification efficiency, so as to reduce oscillation, The effect of simple circuit structure and wide use value

Inactive Publication Date: 2015-02-18
成都联宇创新科技股份有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, the application of broadband power amplifiers began to expand from military to civilian use, and currently occupies an important position in the fields of wireless communication, network data transmission, satellite positioning systems, optical transmission systems, etc.; in the design of port matching of traditional narrowband power amplifiers , it is generally designed according to low noise or conjugate matching, so as to obtain low noise amplification or maximum output power, but under broadband conditions, the change of input and output impedance is relatively large, at this time using conjugate The concept of matching is inappropriate; most of the broadband power amplifiers currently designed have complex circuit structures, the power amplification efficiency is not high enough, and the circuit will also oscillate due to the feedback of distributed capacitance, which is not conducive to signal amplification

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
  • Broadband power amplifier circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing:

[0011] like figure 1 Shown: the present invention includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9 , the tenth resistor R10, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the first triode VT1, the second Transistor VT2, third triode VT3, fourth triode VT4, first inductance L1, second inductance L2 and operational amplifier A, the first end of the first resistor R1 is the signal input end of the broadband power amplifier circuit IN, the second terminal of the first resistor R1 is simultaneously connected with the inverting input terminal of the operational amplifier A, the first terminal of the ...

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 a broadband power amplifier circuit, comprising a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first triode, a second triode, a third triode, a fourth triode, a first inductor, a second inductor and an operational amplifier. The broadband power amplifier circuit has the advantages that the power amplification efficiency is high, the oscillation generated due to distributed capacitance feedback is effectively reduced, the amplification performance is stable, the intermodulation distortion is small, the harmonic distortion is small and the working frequency band range is wide; meanwhile, according to the broadband power amplifier circuit, the circuit structure is simple, fewer components are used, the manufacture cost is reduced, and a wide use value is obtained.

Description

technical field [0001] The invention relates to a broadband amplifier circuit, in particular to a broadband power amplifier circuit. Background technique [0002] With the development of society, the application of broadband power amplifiers began to expand from military to civilian use, and currently occupies an important position in the fields of wireless communication, network data transmission, satellite positioning systems, optical transmission systems, etc.; in the design of port matching of traditional narrowband power amplifiers , it is generally designed according to low noise or conjugate matching, so as to obtain low noise amplification or maximum output power, but under broadband conditions, the change of input and output impedance is relatively large, at this time using conjugate The concept of matching is inappropriate; most of the broadband power amplifiers currently designed have complex circuit structures, the power amplification efficiency is not high enoug...

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 Applications(China)
IPC IPC(8): H03F3/20H03F1/02H03F1/32
CPCH03F3/213H03F1/02H03F1/3211
Inventor 杜荣政
Owner 成都联宇创新科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products