EHF (extremely high frequency) high-linearity high power amplifier device

An amplifier and high-power technology, which is applied in the field of high-linear high-power amplifiers in the EHF frequency band, and can solve the problems of low efficiency, unfavorable practical use, and large loss.

Inactive Publication Date: 2017-10-13
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The linearity and power output of the EHF frequency band amplifier chip are limited, and the original synthesis method and linearization method are applied in this frequency band, which has low efficiency and large loss, which is not conducive to practical use.

Method used

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  • EHF (extremely high frequency) high-linearity high power amplifier device
  • EHF (extremely high frequency) high-linearity high power amplifier device
  • EHF (extremely high frequency) high-linearity high power amplifier device

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Embodiment Construction

[0030] refer to Figure 1 to Figure 6 , the present invention includes a dual-mode attenuator 101, a predistortion linear amplifier 102, a solid-state high-power amplifier 103, a coupling detector 104, a monitoring unit 105, a power supply 106 and a fan 107. figure 1 It is an electric principle block diagram of the present invention, and the embodiment is according to figure 1 Connecting the line, the described dual-mode attenuator 101 is connected with the port A by the input port 1 through 2.92-k, receives the externally input EHF frequency band signal, and controls the attenuation data received by the EHF frequency band signal by the input port 3 through the data line Attenuate the EHF frequency band signal after the attenuation from the output port 2 to the input port 1 of the predistortion linearization amplifier 102; and detect the input EHF frequency band signal to obtain the input detection data, and the input detection data is obtained The input and output port 3 out...

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Abstract

The invention discloses an EHF (extremely high frequency) high-linearity high power amplifier device and relates to upstream channel equipment in the field of EHF satellite communication. The device comprises a double-mode attenuator, a pre-distortion linearization amplifier, a solid-state high power amplifier, a coupling wave detector, a monitoring unit and the like, wherein the solid-state high power amplifier uses the radial linear space power synthesis technology to achieve EHF high power output; the pre-distortion linearization amplifier uses a diode-based analog pre-distortion multi-loop circuit structure to achieve ultralow third-order intermodulation performance; the double-mode attenuator has functions of digital attenuation, analog attenuation and signal detection; the double-mode attenuator, the coupling wave detector and the monitoring unit are coordinated to achieve automatic gain or level control. The EHF high-linearity high power amplifier device is compact in structure, high in integrity, lightweight, low in power consumption, wide in work temperature range and especially suitable for being used as the power amplifier device of an EHF satellite communication microwave channel.

Description

technical field [0001] The invention relates to an EHF frequency band high-linearity high-power amplifier in the field of EHF frequency band satellite communication, and is especially suitable for use as a power amplifier device for the EHF frequency band millimeter wave satellite communication channel. Background technique [0002] With the development of satellite communication, the C and Ku frequency bands are gradually saturated, and they begin to move towards higher frequency bands Ka and EHF frequency bands. The Ka frequency band is currently widely used. As the next generation satellite communication system, the EHF frequency band satellite communication system has high frequency and availability. Wide bandwidth, high security, anti-nuclear explosion and other characteristics, its application prospects are great. At present, the power of the power amplifier in the communication system limits the capacity of the communication, and the quality of the linearity limits th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/02H03F1/32H03F1/48H03F3/20H04B7/155H04B7/185
CPCH03F1/02H03F1/3241H03F1/48H03F3/189H03F3/20H03F2200/451H04B7/15535H04B7/18517Y02D30/70
Inventor 李硕王斌刘立青
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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