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Low noise amplifier and radio frequency receiver

A low-noise amplifier, radio frequency amplification technology, applied in the direction of amplifiers, improving amplifiers to improve efficiency, improving amplifiers to reduce noise effects, etc.

Pending Publication Date: 2020-08-28
NORTH-CHINA INTEGRATED CIRCUIT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a low-noise amplifier and a radio frequency receiver to solve the problem in the prior art that the gain of the low-noise amplifier is not adjustable and affects the reliability of the signal

Method used

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  • Low noise amplifier and radio frequency receiver
  • Low noise amplifier and radio frequency receiver
  • Low noise amplifier and radio frequency receiver

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Embodiment Construction

[0019] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0020] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0021] refer to figure 1 , the embodiment of the present invention provides a low noise amplifier, including: a radio frequency amplification module 11, a bypass switch module 12, a first switch module 13 and a control module 14;

[0022] The first switch module 13, t...

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Abstract

The invention is applicable to the technical field of wireless communication, and provides a low-noise amplifier and a radio frequency receiver, the amplifier comprises a radio frequency amplificationmodule, a bypass switch module, a first switch module and a control module; a first end of the first switch module is connected with an input terminal of the low-noise amplifier, a second end is connected with an input end of the radio frequency amplification module, and a control end is connected with the control module; the output end of the radio frequency amplification module is connected with the output terminal of the low-noise amplifier; the first end of the bypass switch module is connected with the input terminal, the second end is connected with the output terminal, and the controlend is connected with the control module; the control module is used for receiving an external control signal and controlling on-off of the first switch module and the bypass switch module according to the external control signal. By controlling the conduction of the access where the radio frequency amplification module is located or the access where the bypass switch module is located, differentaccesses are selected according to different signal intensities, so that the gain of the low-noise amplifier is adjustable, and the reliability of radio frequency signals is ensured.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a low noise amplifier and a radio frequency receiver. Background technique [0002] Mobile communication technology is the product of the highly developed and combined modern communication technology and computer technology. A low noise amplifier is a part of a wireless transceiver that can be used in the receiver or transmitter of a wireless transceiver. [0003] When the signal is weak, the signal needs to be amplified as much as possible, and the gain of the low-noise amplifier needs to be large; when the signal is strong, too high gain will lead to channel saturation, thereby affecting the integrity of the signal. Therefore, in order to ensure the reliability of the signal, the gain of the low noise amplifier should have an adjustment function for different signal strengths. However, the gain of the low noise amplifier in the prior art is not adjustable, whic...

Claims

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Application Information

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IPC IPC(8): H03F3/195H03F1/26H03F1/02H03F1/32H03G3/30H04B1/16
CPCH03F1/0205H03F1/26H03F1/3205H03F3/195H03G3/3036H04B1/1638
Inventor 王文娟张晓朋高博曲韩宾丁理想
Owner NORTH-CHINA INTEGRATED CIRCUIT CO LTD
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