Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for canceling balun amplifier noise

An unbalanced conversion, amplifier technology, applied in the direction of improving amplifiers to reduce the influence of noise, parts of amplifying devices, amplifiers, etc.

Active Publication Date: 2014-09-24
IND TECH RES INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The differential CG LNA can reduce the power consumption to 3.6mW, but it can only provide an average NF of 3dB in the bandwidth of 0.3-0.92GHz

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for canceling balun amplifier noise
  • Method and apparatus for canceling balun amplifier noise
  • Method and apparatus for canceling balun amplifier noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] Embodiments of several methods and devices for eliminating noise of the Balun amplifier will be disclosed below. In the following description, numerous specific details are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. In this regard, any person skilled in the art should not use these specific details or make minor changes and modifications in actual operation without departing from the spirit and scope of the present invention. In other embodiments, in order to avoid unnecessarily obscuring the disclosure of the embodiments, structures and devices well known to those skilled in the art are represented by block diagrams.

[0084] Subsequent paragraphs present an example implementation of a summing and scaling apparatus and method for a CG-CS Balun amplifier with NF well below 3.5dB, power consumption below 10mW, and IIP3 between 0-3dBm. image 3 It is a schema...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a device for eliminating the noise of a balanced-unbalanced conversion amplifier. In an embodiment of the present invention, the output from the current sensing branch of the LNA and the output from the voltage sensing branch of the LNA are summed and scaled by using the control module of the LNA to generate one or more summed and combined Scaled output. The control module also feeds back the summed and scaled output to at least one of the outputs of the current sensing branch and the voltage sensing branch of the LNA.

Description

technical field [0001] The present invention relates to an amplifier, and in particular to a method and device for eliminating noise of a balance-to-unbalance amplifier (Balun amplifier). Background technique [0002] In the field of wired communication and wireless communication, emerging broadband communication technologies have emerged one after another, such as: Handheld Video Broadcasting (DVB-H) (470-890MHz) and Cognitive Radio (0.1-10GHz) wait. Since a low-noise amplifier (LNA for short) is configured in the first-stage circuit of the receiver, the characteristics of the LNA will directly affect the overall performance of the receiver. Therefore, when dealing with wideband performance, designers will face more challenges, including how to design LNAs with wideband input matching and gain bandwidth. However, in order to achieve the aforesaid effects in traditional methods, the characteristics of noise figure (NF) are usually sacrificed. [0003] In the prior art, a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/26H03F3/45
CPCH03F2200/456H03F2200/471H03F2200/09H03F2200/294H03F3/45179H03F2200/462H03F2200/492H03F3/193H03F2203/45318H03F2200/451H03F1/3205
Inventor 郭明清施宜兴唐仕豪
Owner IND TECH RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com