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A dual-loop analog predistorter for buc modules

A predistorter, predistortion signal technology, applied in the direction of synchronization / start-stop system, etc., can solve problems such as high price

Active Publication Date: 2016-08-03
上海灵亨信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many microwave devices have excellent indicators due to the concentration of the most cutting-edge technology, but at the same time they are expensive. The low-cost implementation in the microwave band has become more and more important in communication.

Method used

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  • A dual-loop analog predistorter for buc modules
  • A dual-loop analog predistorter for buc modules

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Embodiment Construction

[0027] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings: this embodiment is implemented under the premise of the technical solution of the present invention, and provides detailed implementation and specific operation procedures, but the scope of protection of the present invention is not limited to the following 的实施例。 Example.

[0028] Such as figure 1 As shown, a dual-loop analog predistorter for BUC modules of the present invention includes: a first coupler 101, a second coupler 102, and a first link connecting the first coupler 101 and the second coupler 102 And the second link.

[0029] The first link includes a first phase shifter 106; the input end of the first phase shifter 106 is connected to the output end of the first coupler 101, and the output end of the first phase shifter 106 is connected to the input end of the second coupler 102 connection.

[0030] The second link includes a third coupler 103, a ...

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Abstract

The invention discloses a double-ring-structure analog predistorter applied in a BUC (backup computer) module. An output end is connected with the input end of a power amplifier of a BUC module. The analog predistorter comprises a first coupler, a second coupler, and a first link and a second link which are connected with the first coupler and the second coupler; the second link comprises a third coupler, a fourth coupler and a third link and a fourth link which are connected with the third coupler and the fourth coupler.The first coupler is used for processing inputted signals; the first link is used for processing main signals; the second link is used for performing non-linear process on first coupled signals to produce non-linear distorted signals and comprises a non-linear generator, an attenuator and a phase shifter; the second coupler is used for outputting signals, that is to say, the non-linear distorted signals produced by the second link is coupled with the main signals of the first link to acquire and output expected pre-distorted signal. The double-ring-structure analog predistorter applied in the BUC module is capable of achieving high linear effect.

Description

Technical field [0001] The invention relates to an analog predistorter, in particular to a dual-ring structure analog predistorter for BUC. Background technique [0002] For a long time, the efficiency improvement technology and linearization technology of the power amplifier used in the communication system have been the research hotspots in the industry. The power amplifier produces nonlinear components such as third-order intermodulation components and fifth-order intermodulation components. Among them, the third-order intermodulation component is the most important distortion signal, and the fifth-order intermodulation component has little effect on the power amplifier. If the third-order intermodulation component can be cancelled as much as possible to the same or lower amplitude as other high-order components, then a better predistortion effect can be obtained. [0003] As is well-known, the linearization technology of the power amplifier can be divided into power back-off t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/49
Inventor 焦晨秋李汶淋薛雷林卫国
Owner 上海灵亨信息技术有限公司