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Temperature compensation device for power amplifier and method for controlling power stability

A technology of temperature compensation device and power amplifier, which is applied in the direction of power amplifier, amplification control, gain control, etc., can solve the problems of changing and affecting the output stability of power amplifier, and achieve the effect of improving power stability

Inactive Publication Date: 2012-01-25
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the performance and accuracy of the device will change under different temperature environments, this will affect the output stability of the power amplifier at different temperatures. Therefore, whether it is a base station or a repeater, useful measures must be taken to improve the power amplifier. output stability

Method used

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  • Temperature compensation device for power amplifier and method for controlling power stability
  • Temperature compensation device for power amplifier and method for controlling power stability

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0034] 1. Power amplifier temperature compensation device

[0035] 1. Overall

[0036] Such as figure 1 , the power amplifier temperature compensation device includes a power amplifier 10, a power detector 20, a voltage comparator 30, a temperature sensor 40, a single-chip microcomputer 50, a voltage-controlled attenuator 60 and a coupler 70;

[0037] Its connection relationship is:

[0038] The signal input port A, the voltage-controlled attenuator 60, the power amplifier 10, the coupler 70 and the signal output port B are connected in sequence;

[0039] The coupler 70, the power detector 20, the voltage comparator 30 and the voltage-controlled attenuator 60 are connected in sequence;

[0040] The power amplifier 10, the temperature sensor 40, the single chip microcomputer 50 and the voltage comparator 30 are connected in sequence.

[0041] Its working principle is:

[0042] The r...

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Abstract

The invention discloses a temperature compensation device for a power amplifier and a method for controlling the power stability and relates to power amplifiers of a base station and a repeater in the technical field of mobile communications. The temperature compensation device for the power amplifier comprises a signal input port (A), a pressure control attenuator (60), a power amplifier (10), a coupler (70) and a signal output port (B) which are connected with one another sequentially; the coupler (70), a power detector (20), a voltage comparator (30) and the pressure control attenuator (60) are connected with one another sequentially; and the power amplifier (10), a temperature sensor (40), a singlechip (50) and the voltage comparator (30) are connected with one another sequentially. By the invention, the power stability of the power amplifier at different temperatures is improved, power at different power levels can be output stably by the power amplifier, the power output by the power amplifier can be controlled, and the operability is high.

Description

technical field [0001] The invention relates to a power amplifier of a base station and a repeater in the technical field of mobile communication, in particular to a power amplifier temperature compensation device and a method for controlling power stability thereof. Background technique [0002] With the development of communication technology, the output power required by the base station and repeater is increasing, which also requires the output power of the corresponding power amplifier to increase. In a high-power power amplifier, when the output power reaches the nominal full power, every time the output power increases by 1dB, the linearity index of the amplifier will deteriorate faster, which will affect the communication quality, so now mobile communication base stations and repeater power amplifiers In the design, the requirements for the output stability of the power amplifier are getting higher and higher. However, since the performance and accuracy of the devic...

Claims

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Application Information

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IPC IPC(8): H03F3/20H03G3/20
Inventor 何建成王文海江鹏陈俊涛
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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