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Balanced amplification system and antenna system

An amplifying system and balancing technology, applied in the field of electronics, can solve the problems of increasing the cost of the balanced amplifying system

Active Publication Date: 2016-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased cost of a balanced amplifier system due to the addition of circulators or isolators

Method used

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  • Balanced amplification system and antenna system
  • Balanced amplification system and antenna system
  • Balanced amplification system and antenna system

Examples

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Embodiment Construction

[0035] figure 2 It is a schematic structural diagram of a balanced amplification system provided by an embodiment of the present invention. Such as figure 2As shown, the balanced amplification system provided by this embodiment includes: a linear processing unit 20, an amplification channel and a feedback channel. The amplification channel includes a combiner 25 at the output end, a combiner 22 and N-way amplifiers 21 at the output end. The total number of amplifiers in the balanced amplification system is N, and N is an even number. Wherein, the combiner may be a 3dB bridge, for example, a 90-degree 3dB bridge or a 180-degree 3dB bridge.

[0036] Such as figure 2 As shown, the input terminal of the i-th amplifier and the input terminal of the i+1-th amplifier in the amplification channel are respectively connected to the output terminal of the same combiner, and the output terminal of the i-th amplifier and the output terminal of the i+1-th amplifier The output termin...

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PUM

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Abstract

The invention provides a balance amplifying system and an antenna system. The amplifying system comprises a linear processing unit, an amplifying channel and a feedback channel, wherein the amplifying channel comprises a same-frequency combiner and N paths of amplifiers, the feedback channel comprises a signal combiner and N paths of feedback branches, the output end of the j-th amplifier is connected with the input end of the j-th feedback branch, the output end of each feedback branch is connected with the input end of the signal combiner, the output end of the signal combiner is connected with the linear processing unit, j is a natural number which is greater than or equal to 1 and is smaller than or equal to N, at least one of the N paths of feedback branches is provided with a phase compensation circuit, the phase compensation circuit is used for carrying out reverse phase compensation on an interference signal which enters to the corresponding feedback branch from the output end of the system, and carrying out positive phase compensation on the output signal of the amplifier connected with the corresponding feedback branch, and the interference signals outputted by the feedback branches are mutually offset.

Description

technical field [0001] The embodiment of the present invention relates to electronic technology, and in particular to a balanced amplification system and an antenna system. Background technique [0002] Such as figure 1 In the four-way balanced amplification system architecture shown, at the input end, the input signal is processed by the linear processing unit and enters the same-frequency combiner 11, and the same-frequency combiner 11 branches the input signal and outputs it to two amplifiers 12; At the output end, the output ends of the two amplifiers are usually combined by a frequency combiner 11 . In addition, the feedback channel at the output end includes a control module for controlling the linear processing unit, and the control module controls the linear processing unit through the output signal of the system. The frequency combiner can be a 3dB bridge, usually a 90-degree 3dB bridge. The balanced amplifier has the following advantages: the consistency of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/07H03F3/20
Inventor 吴剑锋魏巍孙益平
Owner HUAWEI TECH CO LTD