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Stepping power amplifier for quantitative adjusting

A power amplifier and quantitative adjustment technology, applied in power amplifiers, amplifiers, improving amplifiers to improve efficiency, etc., can solve problems such as quantitative adjustment of microwave radio frequency signals, and achieve the effect of high attenuation accuracy and error reduction.

Pending Publication Date: 2018-05-08
北京元景科技有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned defects in the existing adjustable power amplifier, the present invention provides a stepping power amplifier for quantitative adjustment, which solves the problem that the power amplifier is difficult to quantify the attenuation of microwave radio frequency signals The problem of adjustment, to achieve the power output corresponding to the arbitrary attenuation of the large dynamic range

Method used

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  • Stepping power amplifier for quantitative adjusting
  • Stepping power amplifier for quantitative adjusting
  • Stepping power amplifier for quantitative adjusting

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Embodiment 1

[0051] The present invention provides a stepping power amplifier for quantitative adjustment, and its implementation item indicators are as follows:

[0052] ◆Frequency: 16~18GHz;

[0053] ◆Input power range: -40dBm~0dBm;

[0054] ◆Maximum output power: ≥25dBm;

[0055] ◆The whole machine is required to provide 3 kinds of attenuation: 0.7dB, 7.2dB, 16.4dB; and set 3-bit TTL as the corresponding high-level control bit; then set 3-bit TTL as the corresponding low-level control bit;

[0056] The model of the selected voltage-controlled attenuator is RFSA2113, its attenuation range is ≥30dB, and the corresponding control voltage is 0-2.5V; among them, 0V corresponds to the attenuation ATT of 0dB, and 2.5V corresponds to the attenuation ATT of 30dB. like Figure 4 As shown, even if the whole machine has a power dynamic range of 60dBm by using two stages in series, the attenuation ATT can be accurately calibrated as any real number within the range of 0 to 60dB. Among them, such...

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Abstract

The invention relates to a stepping power amplifier for quantitative adjusting. The stepping power amplifier adopts voltage-control attenuation and comprises a voltage-control attenuator, a driving amplifier, a power amplifier and a power source and control module, the voltage-control attenuator is used for receiving control voltage V1' sent by the power source and control module, attenuating an input microwave radio frequency signal according to preset attenuation amount and outputting a weak signal, the driving amplifier is used for receiving and amplifying the weak signal output by the voltage-control attenuator and outputting a first power amplifying signal, the power amplifier is used for receiving and amplifying the first power amplifying signal output by the driving amplifier and outputting a second power amplifying signal, and the power source and control module is used for providing a power source for normal working of the driving amplifier and the power amplifier, controllingV1' to acquire corresponding control voltage variation delta V and then adjusting a power value P1 corresponding to the second power amplifying signal.

Description

technical field [0001] The invention belongs to the technical field of mobile communication and electronic equipment, and in particular relates to a stepping power amplifier for quantitative regulation. Background technique [0002] Power amplifier (Power Amplifier, PA) is an important part of electronic equipment, it can achieve power amplification for weak electrical signals to meet the needs of transmission and emission. Among them, the power amplifier often needs to adjust the attenuation of the signal when it is used. Especially in the application scenario of the power amplifier, it is required that the high-power signal output by the power amplifier can be adjusted regularly to meet the test requirements. like figure 1 and 2 As shown, traditional microwave radio frequency signal adjustment usually adopts digital control adjustable power amplifier and voltage control adjustable power amplifier. The circuit structure of the digital control type and the voltage control...

Claims

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Application Information

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IPC IPC(8): H03F1/02H03F1/52H03F3/21
CPCH03F1/025H03F1/52H03F3/21Y02D30/70
Inventor 肖雄其他发明人请求不公开姓名
Owner 北京元景科技有限公司
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