Unlock instant, AI-driven research and patent intelligence for your innovation.

A cavity dielectric filter

A dielectric filter and cavity technology, which is applied in the field of communication to achieve good out-of-band suppression performance and improve filtering performance.

Active Publication Date: 2017-08-25
KUANG CHI INST OF ADVANCED TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: the cavity dielectric filter using artificial electromagnetic materials produces transmission zeros on both sides of the passband to achieve good out-of-band suppression characteristics

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
  • A cavity dielectric filter
  • A cavity dielectric filter
  • A cavity dielectric filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] A cavity dielectric filter, such as image 3 As shown, it includes the first resonant cavity 1, the second resonant cavity 2, the third resonant cavity 3 and the fourth resonant cavity 4 located in the cavity and the input end 9 and the output end 10 installed on the cavity, the input end 9 and the The output terminals 10 respectively use structures in which the wires are surrounded by insulating materials, such as coaxial line input signals or output signals. Here, the wires are copper wires, and the insulating material is polytetrafluoroethylene. On the first resonant cavity 1 and extend ...

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 provides a cavity dielectric filter, which includes a cavity, an input terminal and an output terminal installed on the cavity, a plurality of resonant cavities are arranged in the cavity, each resonant cavity is provided with resonant oscillators and The supporting body of the resonator is fixed, the adjacent resonant cavities are coupled, and at least one pair of adjacent resonant cavities are connected by a metal rod to form the coupling. The metal microstructure in the resonant cavity is connected by metal rods, so that transmission zero points are generated on both sides of the passband, and has good out-of-band suppression performance, thereby improving the filtering performance of the filter.

Description

[0001] 【Technical field】 [0002] The invention relates to the communication field, in particular to a cavity dielectric filter. [0003] 【Background technique】 [0004] Filters are one of the common devices in radio technology, and are widely used in electronic equipment such as communications, radar, navigation, electronic countermeasures, satellites, and test instruments. [0005] Because modern communication systems require low-cost, small-volume, and low-loss high-performance indicators, the conventional Chebyshev filter can no longer meet the requirements, so it is necessary to introduce limited transmission zeros in its passband sidebands to improve the passband sidebands. suppression performance. [0006] Compared with the traditional low-pass filter, the metamaterial filter has a high dielectric constant ε of up to 100, and its product performance can achieve smaller loss, better temperature characteristics, and has a high Q value, small size, The high-performance pa...

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): H01P1/208
Inventor 刘若鹏徐冠雄刘京京徐国伟
Owner KUANG CHI INST OF ADVANCED TECH