Supercharge Your Innovation With Domain-Expert AI Agents!

Double-vector millimeter wave generation system and method based on push-pull modulator

A push-pull modulation and generation system technology, applied in electromagnetic wave transmission systems, transmission systems, radio transmission systems, etc., can solve problems such as crosstalk between left and right sidebands, reduce bandwidth requirements, simple overall structure, and improve transmission capacity. Effect

Inactive Publication Date: 2021-02-09
FUDAN UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of crossta

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
  • Double-vector millimeter wave generation system and method based on push-pull modulator
  • Double-vector millimeter wave generation system and method based on push-pull modulator
  • Double-vector millimeter wave generation system and method based on push-pull modulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, a push-pull modulator-based two-vector millimeter wave generation system and method of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0022]

[0023] In this embodiment, a system and a method for generating a two-vector millimeter wave based on a push-pull modulator are described in detail.

[0024] figure 1 It is a schematic structural diagram of a two-vector millimeter wave generation system based on a push-pull modulator in an embodiment of the present invention.

[0025] Such as figure 1 As shown, the generation system of the two-vector millimeter wave based on the push-pull modulator includes a signal generation chip 1, a digital-to-analog converter (DAC) 2, a first electrical amplifier 3-1, a second electrical amplifier 3-2, a laser 4, Push-pull modulator 5, er...

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 belongs to the technical field of optical fiber wireless communication systems, and provides a double-vector millimeter wave generation system and method based on a push-pull modulator,and the method comprises the steps: carrying out the up-conversion (right) and down-conversion (left) of a baseband signal through a signal generation chip, generating a double-frequency independent sideband signal, and enabling the signal to enter a digital-to-analog converter (DAC) to generate an analog signal; a laser generates a continuous wave laser, an analog signal is modulated on the laserthrough a push-pull modulator and transmitted to an optical interleaver through an optical fiber, the optical interleaver converts one path of optical signal into two paths of optical signals, and adouble-vector millimeter wave electric signal is generated through beat frequency of a photoelectric detector. Double-vector millimeter wave signals are generated by using an optical single sideband modulation method based on the push-pull modulator, the overall structure of the system is simple, the transmission capacity of the system is greatly improved, signals with different left and right sideband modulation formats can be transmitted, the bandwidth requirement of a transmitting end electronic device can be reduced, and the cost of an optical fiber wireless communication system is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of optical fiber-wireless (Radio-over-Fiber, ROF) communication systems, and in particular relates to a system and method for generating a two-vector millimeter wave based on a push-pull modulator. Background technique [0002] With the rapid growth of communication capacity and access requirements, the application of radio-optical fiber (ROF) is becoming more and more extensive. Wireless-optical fiber (ROF) combines the characteristics of optical fiber transmission with low loss, high bandwidth, anti-electromagnetic interference and wide-area coverage of wireless communication, and has the advantages of long distance and wide range. The generation of optical vector millimeter waves is an important topic in wireless-fiber optic systems. Previous demonstrations of external modulator-based vector mmWave generation carried only one band of mmWave signals. A previous scheme proposed a 16QAM vector millimeter w...

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
IPC IPC(8): H04B10/2575H04B10/516H04B10/61H04B7/0413H04B1/00
CPCH04B1/0035H04B7/0413H04B10/2575H04B10/5165H04B10/6163
Inventor 余建军刘翠薇王灿赵明明王凯辉
Owner FUDAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com