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Novel high-linearity temperature compensation attenuator

A high linearity, attenuator technology, used in frequency-independent attenuators, network improvements to reduce the impact of temperature changes, multi-terminal-to-network, etc. Reduce the amount of compensation range, limit the application of temperature-compensated attenuators, etc., to achieve good standing wave characteristics, improve power characteristics, and linear attenuation effects.

Pending Publication Date: 2020-09-18
天津中科海高微波技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the temperature compensation characteristics of traditional temperature-compensated attenuators are not good. The phenomenon that the attenuation compensation range will be reduced when the input power is high, which means that the gain compression power point of the traditional temperature-compensated attenuator is low, and it cannot work under large signal power
These problems greatly limit the wider application of temperature compensated attenuators

Method used

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  • Novel high-linearity temperature compensation attenuator
  • Novel high-linearity temperature compensation attenuator
  • Novel high-linearity temperature compensation attenuator

Examples

Experimental program
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Embodiment Construction

[0017] Such as figure 1 As shown, a new type of high linearity temperature-compensated attenuator includes a voltage divider circuit part and an attenuation circuit part.

[0018] The voltage divider circuit part includes a group of resistors R0 with temperature characteristics and a group of diodes DO, R0 and DO are connected in series to obtain a voltage that can vary with temperature, and this voltage is connected to the attenuation circuit by connecting a microstrip line part of the gate terminal of the transistor.

[0019] The attenuation circuit part includes attenuation resistance R1, attenuation resistance R2, attenuation resistance R3, attenuation resistance R4, transistor group K1, transistor group K2; one end of the attenuation resistance R1 is connected to the input port, and the other end is connected to the attenuation resistance R3, attenuation resistance R4, attenuation resistance One end of R2, the other end of the attenuation resistor R3 is connected to the ...

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Abstract

The invention relates to the technical field of attenuators, in particular to a novel high-linearity temperature compensation attenuator. The attenuator comprises a voltage division circuit part and an attenuation circuit part, the voltage division circuit part comprises a group of diodes D0 with temperature characteristics and a group of resistors RO, R0 and DO which are connected in series to obtain voltage capable of changing along with temperature, and the voltage is connected to the grid end of a transistor in the attenuation circuit part through a connecting microstrip line; according tothe attenuation circuit part, resistors R1, R2, R3 and R4 and two sets of transistors K1 and K2 form an attenuation circuit of a pi-like structure, one end of the transistor set is connected with theresistor, the other end of the transistor set is grounded, and the grid end of the transistor set is connected with voltage led out by the voltage division circuit part. The attenuator is suitable for the design of various different technologies, the design of the whole circuit can be correspondingly completed for various types of transistors, and the same design index is finally achieved.

Description

technical field [0001] The invention relates to the technical field of attenuators, in particular to a novel high-linearity temperature-compensated attenuator. Background technique [0002] At present, the temperature compensation characteristics of traditional temperature-compensated attenuators are not good. The attenuation compensation range will be reduced when the input power is high, which means that the traditional temperature-compensated attenuator has a low gain compression power point and cannot work under large signal power. These problems greatly limit the wider application of temperature-compensated attenuators. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the traditional temperature-compensated attenuator technology, and provide a new high-linearity temperature-compensated attenuator, which focuses on improving the linear relationship of temperature-compensated attenuation with temperature changes...

Claims

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Application Information

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IPC IPC(8): H03H11/54H03H11/24
CPCH03H11/54H03H11/24
Inventor 陈普锋耿艳辉全金海黄华
Owner 天津中科海高微波技术有限公司
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