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

W-waveband pulse traveling-wave tube high-power combination system

A traveling wave tube amplifier, traveling wave tube technology, applied in the direction of single output arrangement etc.

Inactive Publication Date: 2014-07-16
NANJING UNIV OF INFORMATION SCI & TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, with the increase of the frequency, the volume of the device is greatly reduced, and the requirements for processing precision and processing technology are higher, which increases the difficulty of system design. However, the biggest technical difficulty of the entire system is how to prevent high gain The self-excitation of the traveling wave tube amplifier and the backflow of electromagnetic wave energy at the output of the traveling wave tube amplifier, because in this case the burning of the traveling wave tube amplifier will occur
As far as the current investigation is concerned, there are no reports of successful development of high-power synthesis of high-power W-band pulsed traveling wave tube amplifiers at home and abroad.

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
  • W-waveband pulse traveling-wave tube high-power combination system
  • W-waveband pulse traveling-wave tube high-power combination system
  • W-waveband pulse traveling-wave tube high-power combination system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 The middle left branch is: the first adjustable attenuator, the first solid-state amplifier, the first isolator, and the first traveling wave tube amplifier;

[0026] The output end of the first adjustable attenuator is connected to the input end of the first solid-state amplifier, and the first solid-state amplifier amplifies the output signal of the first adjustable attenuator, and outputs the amplified signal;

[0027] The output end of the first solid-state amplifier is connected to the input end of the first isolator, allowing the signal to pass through in the forward direction, preventing the echo signal from entering the first solid-state amplifier, and preventing the first solid-state amplifier from being burned;

[0028] The output terminal of the first isolator is connected with the input terminal of the first traveling wave tube amplifier to amplify the power of the signal.

[0029] figure 1 The middle right branch is: the second adjustable atten...

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 millimeter waves and particularly relates to a W-waveband pulse traveling-wave tube high-power combination system. The system comprises a waveguide power divider, a first adjustable attenuator, a first solid-state amplifier, a first isolator, a first traveling-wave tube amplifier, a second adjustable attenuator, a phase shifter, a second solid-state amplifier, a second isolator, a second traveling-wave tube amplifier and a waveguide power combiner. According to the W-waveband pulse traveling-wave tube high-power combination system, high-power combination of a W-waveband two-way pulse traveling-wave tube is achieved technically, the two ways are respectively provided with an isolator, and therefore the solid-state amplifiers can be prevented from being burnt; the same signal source power is divided into two through the power divider with the output phase difference of 90 degrees, a 90-degree phase difference exists between the two ways to prevent mutual interference and self excitation of the two traveling-wave tube amplifiers, and a 90-degree phase difference exists between two inputs of the power combiner to guarantee effective combination of two ways of power.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, and in particular relates to a W-band pulse traveling wave tube high-power synthesis system. Background technique [0002] In modern microwave and millimeter wave radar systems, the radar transmission power is a very important index to measure the performance of the radar system. The increase of transmission power means that the radar has a larger detection radius and stronger anti-interference ability. In order to pursue the high-power transmission of fully coherent pulse radar and imaging radar, electric vacuum devices represented by traveling wave tube amplifiers are widely used in the transmitter system of this type of radar. Due to the limitations of basic conditions such as technology and materials, the current output pulse power of a single traveling wave tube amplifier can only reach about 100-150W, which is difficult to meet the requirements of millimeter-wave rada...

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): H03K5/13
Inventor 葛俊祥周勇朱成周俊萍于兵李家强万发雨祁博宇
Owner NANJING UNIV OF INFORMATION SCI & TECH
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