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

Broadband Injection Locked Frequency Multiplier

An injection locking and frequency multiplier technology, applied in power oscillators, electrical components, etc., to solve problems such as narrowing of the locking range

Active Publication Date: 2021-05-11
SOUTHEAST UNIV +2
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the input power is reduced, the locking range will narrow rapidly

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
  • Broadband Injection Locked Frequency Multiplier
  • Broadband Injection Locked Frequency Multiplier
  • Broadband Injection Locked Frequency Multiplier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The embodiment of the present invention aims at the problem that the traditional injection-locked frequency multiplier has a wide locking range under high-power input, but the locking range will narrow rapidly when the input power decreases, and adopts a double-injection structure, such as figure 1 As shown, it includes the first and second harmonic generators and an injection-locked oscillator; the harmonic generator is used to generate nth harmonic signals (n=2, 3, 4...), and the injection-locked oscillator is used for Lock the harmonic signal generated by the harmonic generator; two harmonic generators and an injection-locked oscillator are connected through a transformer coupling composed of their own internal inductance; the two harmonic generators convert the input fundamental wave signal into The two harmonic signals are then respectively coupled to the injection-locked oscillator through a transformer to achieve frequency doubling.

[0027] The first harmonic ge...

Embodiment 2

[0029] The embodiment of the present invention increases the input buffer and the output buffer on the basis of the first embodiment, such as figure 2 As shown, two harmonic generators and an injection-locked oscillator form the core circuit of the broadband injection-locked frequency multiplier. The broadband injection-locked frequency multiplier includes a core circuit, an input buffer and an output buffer, the input buffer is connected to the input end of the core circuit, and the output buffer is connected to the output end of the core circuit; the above-mentioned connection mode can be direct coupling, transformer coupling or AC coupling.

Embodiment 3

[0031] The broadband injection-locked frequency multiplier disclosed in the embodiment of the present invention is a broadband injection-locked frequency multiplier that can realize frequency doubling, and its circuit is as follows image 3 As shown, it contains two harmonic generators that generate the second harmonic and an injection-locked oscillator. The two harmonic generators include: common-source first transistor M1 and second transistor M2, common-source third transistor M3 and fourth transistor M4, first coupled inductor L1 and second coupled inductor L2, and first capacitor C1 and the second capacitor C2; the first transistor M1, the second transistor M2, the first coupled inductor L1, and the first capacitor C1 constitute the first harmonic generator, the third transistor M3, the fourth transistor M4, the second coupled inductor L2, The second capacitor C2 constitutes the second harmonic generator; the gate of the first transistor M1 is connected to the positive in...

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 broadband injection-locked frequency multiplier, which adopts a double-injection structure and includes two harmonic generators and an injection-locked oscillator. Among them, the harmonic generator is used to generate the second and above harmonic signals, and the injection-locked oscillator is used to lock the harmonic signals generated by the harmonic generator. The two harmonic generators and the injection-locked oscillator pass through their own internal inductors The composed transformer is coupled and connected; the two harmonic generators convert the input fundamental wave signal into two harmonic signals, and then are respectively coupled to the injection-locked oscillator through the transformer to realize frequency multiplication. Compared with the traditional structure, the broadband injection locking frequency multiplier of the present invention still has a wider locking range when the input power is small, and has the advantages of ultra-wide bandwidth, low input sensitivity, low power consumption, and high integration.

Description

technical field [0001] The invention relates to a broadband injection-locked frequency multiplier, which belongs to the technical field of radio frequency and analog integrated circuits of microelectronics and solid electronics. Background technique [0002] In recent years, wireless communication technology has developed rapidly, and the development of millimeter wave and terahertz frequency bands has become more and more popular. The design of wireless transceivers with high integration, high bandwidth and low power consumption has become very important. Wireless transceiver systems rely on reliable IF signals for better system performance. As an important part of the intermediate frequency signal generation chain, the frequency multiplier completes the function of multiplying the fundamental frequency. [0003] In the use of intermediate frequency signals, it is necessary to frequently take frequency multiplication measures to improve system performance. In a superheter...

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): H03B19/14
CPCH03B19/14
Inventor 张有明黄风义唐旭升沈天宇姜楠
Owner SOUTHEAST 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