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

Planar superconducting microstrip resonator

A resonator and microstrip technology, applied in the field of resonators, can solve the problems of increasing the volume of the resonator, increasing the resonator, reducing the parasitic coupling, etc., and achieving the effect of compact overall area, small volume, and small electromagnetic radiation.

Active Publication Date: 2009-09-30
INST OF PHYSICS - CHINESE ACAD OF SCI
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, for f=300MHz, 0.5mm thick dielectric MgO (ε r =9.67), ε re =6.44,λ g =394mm; for f=300MHz, 0.5mm thick medium LaAlO3 (ε r =23.6), ε re =15.14,λ g =257mm, it can be seen that its length is very large, even if the commonly used bending form is adopted, the volume of the resonator cannot be significantly reduced, and it cannot be placed on a 2-3 inch superconducting film substrate, so for UHF band, VHF band even works at lower frequencies, traditional distributed resonators are no longer applicable
In addition, at low frequencies, the size of the resonator increases, and the parasitic coupling cannot be reduced simply by increasing the distance between the resonators, so a new method to reduce the parasitic coupling must be found to design a narrowband filter

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
  • Planar superconducting microstrip resonator
  • Planar superconducting microstrip resonator
  • Planar superconducting microstrip resonator

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] refer to figure 1 , 2 , using a complete microstrip line, the microstrip line is a superconducting microstrip line, the upper layer of the microstrip conductor 3 and the lower layer of the ground plane conductor 1 are high-temperature superconducting thin films, and the middle is a dielectric constant ε rsingle crystal dielectric sheet. Form a structure consisting of a set of finger capacitors, a set of double helix curve inductors connected in parallel, and then a set of block capacitors formed in series with the ground. In this embodiment, the selected microstrip line adopts the crystal medium LaAlO3, and its dielectric constant ε r =23.6, the block capacitor in this structure is selected as a rectangle, the finger capacitors are equal in length and width, and there are two double-helix inductors, which can minimize the volume of the resonator and maximize the use of space. The lines of the finger capacitors The curves of the double-helix inductor and the double-he...

no. 2 example

[0047] A complete superconducting microstrip line is used to form a structure consisting of a set of finger capacitors, a set of double helix curve inductors connected in parallel, and then a set of block capacitors formed in series with the ground. In this embodiment, the straight line of the bulk capacitor, the equal length, equal width and equal distance of the interpolated capacitor, the interpolated capacitor line is a broken line, the double helical inductance has three turns, and the curves of the double helical inductance are all equal in width and equidistant, such as Figure 3b shown.

[0048] In this embodiment, the maximum side length of the outer ring is 6.4 mm, the maximum side width is 5.2 mm, the line width of the microstrip line is 0.4 mm, the distance between the inner and outer ring lines is 0.3 mm, and the distance between the opening ends of the inner and outer rings is 0.12 mm.

no. 3 example

[0050] A complete superconducting microstrip line is used to form a structure consisting of a set of finger capacitors, a set of double helix curve inductors connected in parallel, and then a set of block capacitors formed in series with the ground. In this embodiment, the block capacitors are selected as triangles, the finger capacitors have different lengths and widths, and there are two double-helical inductors, and the curves of the double-helical inductors are all unequal widths and different distances.

[0051] In this embodiment, the maximum side length of the outer ring is 6.0 mm, the maximum side width is 5.2 mm, the line width of the microstrip line is 0.5 mm, the distance between the inner and outer ring lines is 0.3 mm, and the distance between the opening ends of the inner and outer rings is 0.12 mm.

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

PropertyMeasurementUnit
Line widthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a planar superconducting microstrip resonator which comprises a microstrip line comprising an upper-layer superconducting film, a lower-layer superconducting film and a monocrystal medium positioned between the upper-layer and the lower-layer superconducting films, finger-inserting capacitors, a double-helix curved inductor and a blocky capacitor formed together with the ground, wherein the finger-inserting capacitors are parallel to the double-helix curved inductor, and the finger-inserting capacitors are connected with the double-helix curved inductor in parallel, and the finger-inserting capacitors and the double-helix curved inductor which are connected in parallel are connected with the blocky capacitor in series. The planar superconducting microstrip resonator has small volume and less electromagnetic radiation. The planar superconducting microstrip resonator can be used for designing and manufacturing a narrowband superconducting band-pass filter with high performance.

Description

technical field [0001] The invention relates to a resonator, in particular to a planar superconducting microstrip resonator. Background technique [0002] In microwave engineering, superconducting microstrip resonators can form different orders of planar superconducting filters (a passive device), which are used in various microwave devices (such as radars, mobile phone base stations, microwave communication devices, radio astronomy telescopes) etc.), used to select a signal of a certain frequency. In the front end of various microwave receiving systems, filters are often used to suppress unwanted signal frequencies so that the required signal frequencies can pass through smoothly. High-temperature superconducting filter is a planar device made of high-temperature superconducting materials, which is composed of several planar resonators arranged according to certain rules. For a band-pass filter made of ordinary metal, it is usually called a narrow-band filter if the relat...

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): H01P7/08
Inventor 于涛李春光张强孙亮李翡王跃辉高路郭进边勇波黎红张雪强罗强顾长志何豫生
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com