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Temperature compensation attenuator circuit, radio frequency equipment and temperature compensation attenuation method

An attenuation circuit and attenuator technology, which is applied to frequency-independent attenuators, multi-terminal pair networks, impedance matching networks, etc., can solve problems such as unstable impedance matching of temperature-compensated attenuation circuits, poor attenuation range adjustability, etc., and achieve improved Adjustability, the effect of maintaining the output impedance

Pending Publication Date: 2022-07-22
THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP
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Problems solved by technology

[0006] The embodiment of the present invention provides a temperature-compensated attenuator circuit, radio frequency equipment and a temperature-compensated attenuation method, which solves the problems of unstable impedance matching and poor adjustability of the attenuation range in the existing temperature-compensated attenuation circuit

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  • Temperature compensation attenuator circuit, radio frequency equipment and temperature compensation attenuation method
  • Temperature compensation attenuator circuit, radio frequency equipment and temperature compensation attenuation method
  • Temperature compensation attenuator circuit, radio frequency equipment and temperature compensation attenuation method

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the present invention examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The term "including" and any other variations in the description and claims of the present invention and the above-mentioned drawings means "including but not limited to", and is intended to cover non-exclusive inclusion and not limited to the examples listed herein. Also, the terms "first" and "second" and the like are used to distinguish different objects, rather than to describ...

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Abstract

The invention relates to the technical field of attenuators, and discloses a temperature compensation attenuator circuit, radio frequency equipment and a temperature compensation attenuation method, and the temperature compensation attenuator circuit comprises a control voltage generation circuit and an attenuation circuit. The control voltage generation circuit is connected with the attenuation circuit, and the attenuation circuit is used for accessing an output signal of a target device; the control voltage generation circuit is used for generating a first control signal and a second control signal changing along with the first control signal based on the temperature of the target device, and transmitting the first control signal and the second control signal to the attenuation circuit; the attenuation circuit is used for attenuating an output signal of the target device based on the first control signal and the second control signal and outputting an attenuated signal; wherein the first control signal is used for controlling the attenuation amount of the attenuation circuit, and the second control signal is used for keeping the impedance between the output signal of the target device and the attenuated signal stable. The temperature compensation attenuator circuit effectively solves the problem that impedance matching of an existing temperature compensation attenuator circuit is unstable.

Description

technical field [0001] The invention relates to the technical field of attenuators, in particular to a temperature-compensated attenuator circuit, radio frequency equipment and a temperature-compensated attenuation method. Background technique [0002] With the rapid development of wireless communication technology, radio frequency microwave amplifiers are often used. The output power and gain of the RF microwave amplifier change with temperature, and its performance index is seriously affected by temperature. Therefore, for working scenarios with high temperature requirements, it is necessary to add components to control temperature drift in the RF microwave amplifier to ensure stable performance. [0003] At present, there are three commonly used methods for stabilizing the level / gain of an amplifier. The first method is Automatic Level Control (ALC) / Automatic Gain Control (AGC). This method samples the level / power at the output end and generates a corresponding control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H11/28H03H11/24
CPCH03H11/28H03H11/24
Inventor 王帅孙海涛高辉卢东旭曾志
Owner THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP
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