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Power amplifier having adaptive and adjustable frequency and bandwidth, and adjustment method

A power amplifier and amplifier technology, applied in the field of communication, can solve problems such as unsatisfactory, and achieve the effect of adjustable bandwidth and adjustable frequency band

Active Publication Date: 2018-09-18
沃勤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the actual system application process of the power amplifier, it will require a wider working frequency band to support wider broadband signals, or adjust the frequency band of the input signal according to the needs, so as to meet the needs of transmission, which requires the power amplifier to have a wider The bandwidth or frequency band can be adjusted, but the existing traditional power amplifier, due to the device characteristics of the amplifier, its frequency and bandwidth are limited by materials, devices and applications, and often cannot meet the requirements of the system

Method used

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  • Power amplifier having adaptive and adjustable frequency and bandwidth, and adjustment method
  • Power amplifier having adaptive and adjustable frequency and bandwidth, and adjustment method
  • Power amplifier having adaptive and adjustable frequency and bandwidth, and adjustment method

Examples

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Embodiment 1

[0037] Combine below figure 1 , specifically illustrating the structural schematic diagram of the frequency and bandwidth adaptive and adjustable power amplifier of the present application;

[0038] The power amplifier includes: preamplifier circuit A2, interstage matching circuit A3, drive amplifier circuit A4, interstage matching circuit A5, final stage amplifier circuit A6, coupler A7 and digital processing unit B1, voltage and current detection B4;

[0039] The frequency and bandwidth of the amplifier are related to the input matching, output matching, supply voltage and interstage matching of the amplifier. Among them, the input matching and output matching of the amplifier are related to the model of the amplifier, the working state of the amplifier, and the circuit structure of the amplifier. Balance class or Doherty class , Printed board material, microstrip size, matching capacitor size and position, and heat dissipation size are related;

[0040]According to the amp...

Embodiment 2

[0085] Such as Figure 10 As shown, the embodiment of the present application provides a method for adjusting the frequency and bandwidth of the power amplifier, the method comprising:

[0086] SF1, the digital processing unit B1 initializes the configuration, and inputs the information of frequency, bandwidth and index changes through the communication interface, and the digital processing unit B1 performs operations and converts it into a preset value of frequency, and the preset value is a curve that changes with time ;

[0087] SF2, set the frequency and bandwidth adjustment flag, and the maximum adjustment times value;

[0088] SF3, call and output the level adjustment corresponding to the frequency, bandwidth and index of the combined matching parameters of the input, output and inter-level matching of the amplifiers at all levels, the combined parameters of the amplifier voltage parameters and temperature parameters;

[0089] SF4, the digital processing unit B1 turns ...

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PUM

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Abstract

The invention relates to a power amplifier having adaptive and adjustable frequency and bandwidth, and an adjustment method, and belongs to the technical field of communication. The device comprises aswitching circuit A1, a pre-amplifier circuit A2, an inter-stage matching circuit A3, a driving amplifier circuit A4, an inter-stage matching circuit A5, a final amplifier circuit A6, a signal sourcecircuit, a coupler A7 and a digital processing unit B1. According to the scheme, the adjustable terminal of an adjustable high-Q capacitor is adjusted, so that the capacitance value of the adjustablehigh-Q capacitor is changed regularly; therefore, the sizes and the positions of input and output matching and inter-stage matching capacitors of the amplifier are changed by a certain combination; and thus, the frequency and the bandwidth required in application and indexes linearly satisfying requirements are obtained.

Description

technical field [0001] The present application relates to the field of communication technology, in particular to a frequency and bandwidth adaptively adjustable power amplifier and an adjustment method. Background technique [0002] As the core radio frequency unit in the communication system, the power amplifier's performance characteristics have a great impact on the overall system indicators, especially its frequency and bandwidth characteristics, which affect the transmission capacity of the system. Existing power amplifiers are mainly composed of pre-amplifiers, drive amplifiers, final-stage amplifiers, isolators, etc. The input and output matching of amplifiers at all levels and the capacitors in inter-stage matching are generally composed of fixed-value capacitors. Therefore, The amplifier finally designed and debugged is a power amplifier with fixed frequency and bandwidth. [0003] At present, in the actual system application process of the power amplifier, it wil...

Claims

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Application Information

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IPC IPC(8): H03F1/02H03F1/56H03F3/195H03F3/213H03F3/21
CPCH03F1/0294H03F1/56H03F3/195H03F3/211H03F3/213H03F2200/451
Inventor 孟庆南
Owner 沃勤科技有限公司