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Wireless communication receiver front end and single antenna

A receiver front-end and wireless communication technology, applied in differential amplifiers, DC-coupled DC amplifiers, amplifier input/output impedance improvements, etc., can solve problems such as large cost and occupied area, unfavorable design and manufacturing, and large output signal distortion , achieve good linearity, save area and cost, and avoid distortion

Inactive Publication Date: 2021-06-18
BEIJING BAIRUI INTERNET TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the existing technology, the matching of the low noise amplifier and the power amplifier in the front end of the wireless communication receiver is poor, the cost and the occupied area are large, which is not conducive to design and manufacture, the output signal distortion is large in the later stage, and the circuit performance is not good. The best problem, this application proposes a wireless communication receiver front-end and single antenna

Method used

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  • Wireless communication receiver front end and single antenna
  • Wireless communication receiver front end and single antenna
  • Wireless communication receiver front end and single antenna

Examples

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Embodiment 1

[0021] figure 1 One embodiment of the wireless communication receiver front end of the present application is shown. Such as figure 1 As shown, the wireless communication receiver front end of the present application includes:

[0022] At least one matching component 101 is used for matching the low noise amplifier and the power amplifier in the receiver.

[0023] Specifically, the matching components may be capacitors connected in series, inductors connected in series, capacitors connected in parallel, inductors connected in parallel, or combinations thereof. According to different requirements for matching components, the combination of inductance and / or capacitance only needs to achieve a predetermined resistance effect, for example, a resistance effect of 50 ohms, wherein the actual resistance effect is properly set according to the actual working requirements of the receiver.

[0024]It should be noted that in the design of matching components, due to the high area and...

Embodiment 2

[0047] Figure 5 An embodiment of a single antenna of the wireless communication receiver of the present application is shown, such as Figure 5 As shown, the wireless communication receiver single antenna of the present application includes a power amplifier and a low noise amplifier, and is characterized in that it also includes: at least one matching component, a matching network, a transformer, and at least one current mode, wherein at least one matching component It is used to match the low noise amplifier and power amplifier in the receiver; the matching network, which is connected with the matching components, improves the matching degree of the matching components to the low noise amplifier and power amplifier; the transformer, which is connected with the matching components or The network connection is used to match the low-noise amplifier and the power amplifier, and convert the received single-ended voltage signal into a differential voltage signal, and output it; a...

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PUM

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Abstract

The invention discloses a wireless communication receiver front end and a single antenna, and belongs to the technical field of wireless communication, and the wireless communication receiver front end comprises a matching component which is used for matching a low noise amplifier and a power amplifier in a receiver; the matching network is connected with the matching component and used for improving the matching degree of the matching component to the low-noise amplifier and the power amplifier; the transformer is connected with the matching component or the matching network, matches the low-noise amplifier and the power amplifier, converts the received single-end voltage signal into a differential voltage signal, and outputs the differential voltage signal; and the current mode receives the differential voltage signal, converts the differential voltage signal into a current signal, and outputs the current signal to a post-stage circuit. According to the invention, the matching effect of the matching component between the low-noise amplifier and the power amplifier is improved, the area and the cost are saved by sharing the transformer, the linearity of signal processing is better through the current mode, and the signal distortion is avoided.

Description

technical field [0001] The present application relates to the technical field of wireless communication, in particular to a front end and a single antenna of a wireless communication receiver. Background technique [0002] In the single-antenna design of the wireless communication receiver in the prior art, it is usually necessary to set shared matching components between the power amplifier (PA) and the low-noise amplifier (LNA), wherein the shared matching components need to meet the power amplifier (PA) ) output matching, which also needs to meet the input matching of the low-noise amplifier (LNA), limits the wideness of the single-antenna performance of the wireless communication receiver; one of the common ways to share the transformer is to lead a wire near the end of the transformer near the antenna Connected to the LNA, in this matching method, in order to meet different application scenarios and technical indicators, there are different requirements for the structur...

Claims

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Application Information

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IPC IPC(8): H03F1/56H03F3/45
CPCH03F1/56H03F3/45
Inventor 苏杰李孙华徐祎喆朱勇
Owner BEIJING BAIRUI INTERNET TECH CO LTD