Reconfigurable high-efficiency high-linearity broadband power amplifying method and amplifier

A broadband power amplification and power amplifier technology, applied to amplifiers with semiconductor devices/discharge tubes, amplifiers, improved amplifiers to expand bandwidth, etc., can solve the problem of not considering harmonic control efficiency, only considering broadband fundamental wave matching and other problems to achieve the effect of curbing deep saturation, strengthening traction, and suppressing drift

Inactive Publication Date: 2016-03-30
HANGZHOU DIANZI UNIV
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the carrier power amplifier and the peak power amplifier in the broadband Doherty power amplifier only consider the matching of the broadband fundamental wave and do not consider the improvement of the efficiency of the harmonic control. The research focus of the broadband Doherty is how to broaden the bandwidth of the power amplifier, especially 1 / 4 wavelength transmission line load modulation network after main and auxiliary power amplifiers

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
  • Reconfigurable high-efficiency high-linearity broadband power amplifying method and amplifier
  • Reconfigurable high-efficiency high-linearity broadband power amplifying method and amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A reconfigurable high-efficiency high-linear broadband power amplification method; specifically includes the following steps:

[0021] Step 1: Debug a standard continuous class F power amplifier as a carrier power amplifier;

[0022] Step 2: adjust the phase compensation line at the output end of the carrier power amplifier, so that the carrier power amplifier reaches a high efficiency point in the low power region; the high efficiency point is the efficiency of power back 6dB when the carrier power amplifier is saturated and output;

[0023] Step 3: adding a continuous class F power amplifier as a peak power amplifier;

[0024] Step 4: Adjust the phase compensation line at the input end of the peak power amplifier to ensure that the phase of the carrier power amplifier and the peak power amplifier are consistent;

[0025] Step 5: Add a parallel 1 / 4 short stub transmission line behind the carrier and peak power amplifiers.

[0026] The load impedance of the continuous...

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 reconfigurable high-efficiency high-linearity broadband power amplifying method and an amplifier. One output end of an unequal Wilkinson power divider in the amplifier is connected with a carrier power amplifier, and the other output end of the unequal Wilkinson power divider is connected with a peak power amplifier; the carrier power amplifier is connected with one input end of a power combiner through a 1/4 wave length impedance transformer; the output end of the peak power amplifier is connected with the other input end of the power combiner; the input end of the power combiner is connected with a load modulation network; the load modulation network is characterized in that a section of 1/4 wave length transmission line is connected in parallel to the tail of the conventional 1/4 wave length transmission line; and the bandwidth of the conventional Doherty is broadened. According to the amplifying method and the amplifier, drifting of 'effective' load impedance along with operating frequency can be inhibited greatly, so that the broadband of the Doherty amplifier is improved, which provides guarantee for improving the overall broadband of the Doherty amplifier.

Description

technical field [0001] The invention relates to a power amplifier, in particular to a reconfigurable, high-efficiency, high-linear broadband power amplification method and an amplifier. Background technique [0002] The power amplifier, as the final module in the transmitter, is the component with the largest power consumption in the entire radio frequency system. Its main function is to amplify the power of the signal output by the previous stage, and then send the amplified signal to the antenna for transmission. Since the power amplifier consumes a lot of DC power, efficiency is the first important indicator to be considered in the design of the power amplifier. At the same time, output power, linearity, and bandwidth are also key indicators of the power amplifier. This is mainly reflected in the following aspects: (1) The bandwidth of the power amplifier. Since various communication standards are compatible with each other and their respective working frequency bands ar...

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): H03F1/42H03F1/02H03F3/213H03F3/217
CPCH03F1/0288H03F1/42H03F3/213H03F3/217H03F2200/36
Inventor 程知群王凯范凯凯刘国华
Owner HANGZHOU DIANZI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap