Method for stabilizing gain of wireless communication receiver

A wireless communication and receiver technology, applied in gain control, electrical components, transmission systems, etc., can solve problems such as inconsistent temperature fluctuation curves and poor compensation effects

Pending Publication Date: 2020-04-07
GUANGDONG NUFRONT COMP SYST CHIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that it needs digital baseband cooperation, and when the chip size increases, its fluctuation curve with temperature may be inconsistent, resulting in poor compensation effect

Method used

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  • Method for stabilizing gain of wireless communication receiver
  • Method for stabilizing gain of wireless communication receiver
  • Method for stabilizing gain of wireless communication receiver

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Embodiment Construction

[0047]The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not intended to automatically limit the application if in fact more than one invention is disclosed The scope is any individual invention or inventive concept.

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Abstract

The invention provides a method and a device for stabilizing the gain of a wireless communication receiver. According to the invention, bias circuits of a transconductance amplifier and a mixer circuit are designed, set and adjusted, independent compensation is carried out on the transconductance amplifier, combined compensation is carried out on a mixer and a trans-impedance amplifier, and different compensation circuit structures are selected according to the characteristics of each unit, so that the fluctuation of respective gain under PVT (process angle, voltage and temperature) is reduced, and the overall gain fluctuation is reduced.

Description

technical field [0001] The invention belongs to the gain control technology of a wireless transceiver, in particular to a method for stabilizing the gain of a wireless communication receiver. Background technique [0002] In a wireless communication system, the signal received by the receiver usually contains many interference signals in addition to useful signals. These interference signals come from signals sent by other users and reach the antenna end of the receiver after a certain distance attenuation. Single-tone signal, and the distance from the useful signal on the frequency spectrum is not the same. This requires the receiver circuit to have strong anti-interference ability. At present, the current mode passive mixer receiver architecture is usually used, and its most important feature is that there is no large voltage swing in the signal chain, only the final output terminal will have a large voltage swing, so that the generated The non-linearity is weak, so that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/30H04B1/12
CPCH03G3/3036H04B1/123
Inventor 白晓鹏杨利鲍东山
Owner GUANGDONG NUFRONT COMP SYST CHIP
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