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An integrated circuit of a current multiplexing gm-boost low-noise amplifier

A technology of gm-boost and low-noise amplifier, which is applied in the direction of amplifiers, amplifiers with semiconductor devices/discharge tubes, and amplification control. Jointly improve other problems to achieve the effect of increasing gain and improving noise problems

Inactive Publication Date: 2019-05-10
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the key indicators of low-noise amplifiers often restrict each other, and it is difficult to take into account in the design, so it is difficult to achieve the improvement of comprehensive indicators, especially the joint improvement of gain and noise

Method used

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  • An integrated circuit of a current multiplexing gm-boost low-noise amplifier
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  • An integrated circuit of a current multiplexing gm-boost low-noise amplifier

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Embodiment 1

[0035] See figure 1 , figure 1 It is a schematic circuit structure diagram of an integrated circuit of a current multiplexing type gm-boost low noise amplifier provided by an embodiment of the present invention. An integrated circuit of a current-multiplexing gm-boost low-noise amplifier provided in an embodiment of the present invention, the integrated circuit includes:

[0036] A common source amplifier module, a negative feedback loop module, a DC current isolation module and a common grid amplifier module, the common source amplifier module is respectively connected to the negative feedback loop module and the common grid amplifier module, the negative feedback loop module and The common gate amplification module is connected through the DC current isolation module, wherein,

[0037] The common source amplification module is used to convert the voltage signal into a current signal, and provide an impedance-matched input impedance;

[0038] The DC current isolation modul...

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Abstract

The invention relates to an integrated circuit of a current multiplexing gm-boost low-noise amplifier. The integrated circuit comprises a cascode amplification module, a negative feedback loop module,a direct current isolation module and a cascode amplification module; the cascode amplification module is connected to the negative feedback loop module and the cascode amplification module, and thenegative feedback loop module and the cascode amplification module are connected through the direct current isolation module. The integrated circuit of the current multiplexing gm-boost low-noise amplifier comprises a cascode amplification module, a negative feedback loop module, a direct current isolation module and a cascode amplification module, and can alleviate the noise problem under the condition that the gain is improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to an integrated circuit of a current-multiplexing gm-boost low-noise amplifier. Background technique [0002] In the radio frequency wireless communication receiving system, the low noise amplifier, as the first stage active circuit, needs to have very low noise and provide sufficient gain to amplify the weak radio frequency signal and suppress the noise of the subsequent stage circuit. [0003] With the continuous evolution of wireless communication technology, in portable communication tools, the requirements for comprehensive performance indicators of power consumption, gain and noise of low-noise amplifiers are getting higher and higher, and high-performance low-noise amplifier integrated circuits have great practical value , which is a hotspot of research in both the commercial field and the scientific research field. [0004] However, the key indicators of the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/26H03F1/34H03F1/56H03F3/195H03G3/30
CPCH03F1/26H03F1/34H03F1/565H03F3/195H03F2200/451H03G3/3036
Inventor 刘继业刘术彬丁瑞雪刘帘曦朱樟明
Owner XIDIAN UNIV
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