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

Injection locking frequency divider circuit based on variable inductance value

A technology of injection locking and frequency divider, which is applied in the direction of electrical components, automatic power control, etc., can solve the problem of small frequency division range and use range, and achieve the effect of increasing the frequency division range

Inactive Publication Date: 2016-10-26
TSINGHUA UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing injection-locked frequency divider has always been the main factor limiting its application range due to its small frequency division range.

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
  • Injection locking frequency divider circuit based on variable inductance value
  • Injection locking frequency divider circuit based on variable inductance value
  • Injection locking frequency divider circuit based on variable inductance value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to make the purpose, technical solution and features of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] A kind of injection-locked frequency divider circuit structure based on variable inductance value proposed by the present invention, such as figure 2 As shown, it is characterized in that the injection-locked frequency divider circuit consists of: five NMOS transistors, two capacitors, and two inductors (wherein L1 is a common inductor, and L2 is a differential inductor); wherein, the inductor L1 and the transistor MN1 are composed of The first current loop, the remaining four transistors, two capacitors and the differential inductor L2 form the second current loop, and the coupling between the two current loops occurs through two inductors; the connection relationship of the above-mentioned components is: the inductor L1 The tap end is grounded to ...

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 an injection locking frequency divider circuit based on a variable inductance value, and belongs to the field of radio frequency and millimeter wave terahertz integrated circuit design. The circuit comprises five NMOS transistors, two capacitors and two inductors. A first current loop is formed by the inductors and a first transistor. A second current loop is formed by the other four transistors, two capacitors and a differential inductor. Coupling effect is generated between the two current loops through the two inductors. The inductance value of the circuit can be adjusted by switching the first transistor. Therefore, the frequency division range of a frequency divider is improved. According to the circuit, on the premise that the power consumption is kept unchanged, compared with the prior art, the circuit has the advantages that the frequency division range of the frequency divider is improved to a great extent, the wider frequency division range is provided in low power consumption, and the performance of a transceiver is improved.

Description

technical field [0001] The invention belongs to the field of radio frequency and millimeter-wave terahertz integrated circuit design, and in particular relates to the design of a frequency divider with low power consumption, high frequency and wide range in the millimeter-wave terahertz frequency band. Background technique [0002] Today, more than a hundred years after the development of wireless communication, resources in the 500MHz-5GHz frequency band in the field of military communication have become increasingly scarce. Although future quantum communication technology is worth looking forward to, it is still somewhat out of reach. The terahertz band, which was once "forgotten", integrates the advantages of microwave communication and optical communication, and has many characteristics such as high transmission rate, large capacity, strong directionality, high security and good penetration. The prospect of application is attractive, and it has become a hot spot for mini...

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 Applications(China)
IPC IPC(8): H03L7/18
CPCH03L7/18
Inventor 张雷朱新新王燕
Owner TSINGHUA UNIV
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