Rectangular waveguide resonant cavity of U-shaped temperature compensated short circuiter

A rectangular waveguide and short-circuit technology, which is applied to resonators, waveguide-type devices, circuits, etc., can solve the problems of not being able to greatly reduce the influence of temperature on the resonant frequency of the resonant cavity, and the complexity of the equipment.

Inactive Publication Date: 2010-06-23
SOUTHEAST UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of these methods are: the required equipment is complicated, or the magnetic properties of the cavity material limit the application occasions, or add

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
  • Rectangular waveguide resonant cavity of U-shaped temperature compensated short circuiter
  • Rectangular waveguide resonant cavity of U-shaped temperature compensated short circuiter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention will be further described below in conjunction with drawings and embodiments.

[0009] The embodiment adopted in the present invention is: the U-shaped temperature-compensated short circuit rectangular waveguide resonant cavity includes a metal cavity, a U-shaped short circuit, a support body and one or several input and output coupling devices. The shape of the metal cavity can be a cuboid, or a cube with equal narrow and wide sides. The U-shaped short circuit is located in the metal cavity. The material of the short circuit is conductive metal, and metal can also be plated on the surface of non-metallic materials. The shape of the short circuit is U-shaped, and the bottom surface of the U-shaped short circuit is in contact with the top surface of the metal cavity. The walls are parallel, and the shape of the bottom surface of the U-shaped short circuit is rectangular, and its size is slightly smaller than the size of the cavity wall on the top su...

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 relates to a rectangular waveguide resonant cavity of a U-shaped temperature compensated short circuiter, which can remarkably reduce the influences of temperatures to the TE101mode and Tem0n mode resonant frequencies of the resonant cavity. The ultralow temperature floating U-shaped rectangular waveguide resonant cavity comprises a metal cavity (1), a U-shaped short circuiter (2), a supporting body (3) and one or more input and output coupling devices (4), wherein the U-shaped short circuiter (2) is positioned in the metal cavity (1), one head of the supporting body (3) is connected with a top surface cavity wall (6) of the metal cavity (1), the other head of the supporting body (2) is connected with a bottom surface (5) of the U-shaped short circuiter (2); the U-shaped short circuiter (2), a top surface cavity wall (9) of the metal cavity (1), two side surface cavity walls (10) and upper and lower surface cavity walls (8) of the metal cavity form a resonant space (11) of electromagnetic waves; and the input and output coupling devices (4) are positioned on the top surface cavity wall (9) or the narrow surface cavity wall (10) or the wide surface cavity wall (8) of part of the metal cavity (1) of the resonant space (11).

Description

technical field [0001] The invention relates to a waveguide resonant cavity, in particular to a U-shaped temperature-compensated short circuit rectangular waveguide resonant cavity capable of reducing the temperature drift of the resonant frequency. Background technique [0002] The resonant frequency of a waveguide resonant cavity depends on the shape, size, cavity filling medium and resonant mode of the resonant cavity. When the temperature changes, the size of the resonant cavity will also change due to thermal expansion and contraction of the wall material of the resonant cavity, which will cause a change in the resonant frequency of the resonant cavity, which will adversely affect the performance of the resonant cavity. At present, the known methods to reduce the influence of temperature changes on the resonant frequency of the resonator are mainly to adopt constant temperature measures, or to use cavity materials with small thermal expansion coefficients such as Invar,...

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): H01P7/06H01P1/30
Inventor 殷晓星赵洪新孙忠良
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap