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

A Highly Selective Dual-Passband Filter

A dual-passband filter, high selectivity technology, applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problem of not being able to take into account the high isolation between passbands, widening passband bandwidth and stopband suppression, etc., to achieve Effect of steep band edges, high passband-to-band isolation

Active Publication Date: 2021-10-22
ZHONGTIAN BROADBAND TECH +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a high-selectivity dual-passband filter, which aims to solve the problem that the existing dual-passband filter design technology cannot take into account the high isolation between the passbands, the bandwidth of the widened passband and the suppression of the stop band Technical issues such as performance

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 Highly Selective Dual-Passband Filter
  • A Highly Selective Dual-Passband Filter
  • A Highly Selective Dual-Passband Filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the ...

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 high-selectivity dual-passband filter. The high-selectivity dual-bandpass filter includes a first substrate, a second substrate, and two branch-loaded ring resonators. The technical solution of the present invention arranges two branch-loaded ring resonators between the first substrate and the second substrate, the two branch-loaded ring resonators are arranged symmetrically about the short-side central axis of the first substrate, and the two branch-loaded ring resonators The resonators are coupled to each other, where the feed signal enters from one branch loaded ring resonator, and the signal after frequency selection is output from the other branch loaded ring resonator. Using a pair of coupled branch loaded ring resonators, it can be generated in the observation frequency band Twelve transmission zeros enable steep band edges, high pass-band to pass-band isolation, and wide-range stop-band rejection.

Description

technical field [0001] The invention relates to the technical field of microwave communication, in particular to a high-selectivity double-passband filter. Background technique [0002] With the rapid development of modern wireless communication technology, the electromagnetic environment is becoming more and more complex, and the spectrum resources are becoming more and more tense. [0003] In order to obtain high-reliability, high-speed, and large-capacity communication transmission capabilities, it is very important to improve the performance of hardware devices in the communication system. Due to limited electromagnetic spectrum resources, available frequency bands are becoming more and more crowded. In order to avoid crosstalk between different frequency signals, filters with frequency selection or suppression functions are essential in wireless communication systems. [0004] The existing dual-passband filter design technology cannot take into account the performance ...

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): H01P1/212H01P1/203
CPCH01P1/20309H01P1/2039H01P1/212
Inventor 王建朋顾辉葛磊
Owner ZHONGTIAN BROADBAND TECH