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High-power high-temperature superconducting mini filter

A high-temperature superconducting and filter technology, applied in the field of electronics, can solve the problems of cost reduction and convenient use, disadvantage, large filter size, etc., and achieve the effect of simple structure, easy implementation, and small passband fluctuation.

Inactive Publication Date: 2006-10-11
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the size of the filter on the traditional disc resonator is large, which is not conducive to cost reduction and convenient use

Method used

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  • High-power high-temperature superconducting mini filter
  • High-power high-temperature superconducting mini filter
  • High-power high-temperature superconducting mini filter

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Embodiment Construction

[0011] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] The high-power high-temperature superconducting miniaturized filter of the present invention has a periodic disk photonic bandgap structure (PBG), such as figure 1 shown. Four circular holes 2 are evenly distributed on a concentric circumferential line of the disc resonator 1, and the ratio of the radius of the circular holes 2 to the radius of the circular hole is greater than one-tenth, forming a photonic bandgap structure. The periodic circular hole 2 can realize two electromagnetic field existence modes, and the working mode is TM 010 . The disk resonator 1 is coupled with two mutually perpendicular feed lines 3 after corroding the circular hole 2 to form a disk filter. Due to the slow-wave characteristics of the photonic bandgap structure, that is, the wavelength of the electromagnetic waveguide passing through ...

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Abstract

A high-power high-temperature superconducting miniaturized filter, in which a number of circular holes are uniformly etched on a concentric circular line of a high-temperature superconducting microstrip disk resonator, and the radius of the circular hole is between the radius of the circular line where the circular hole is located The ratio is greater than one-tenth, forming a periodic disk photonic bandgap structure, and the periodic hole realizes the existence of two electromagnetic fields, and the working mode is TM 010 , the disc resonator is coupled with two mutually perpendicular feed lines to form a disc filter. The present invention is simple in structure, realizes easily, because the slow-wave effect of photonic bandgap structure makes the size of the realized high-power filter reduce 25%, insertion loss is about-0.5dB,-3dB bandwidth is about 250Mhz, and passband fluctuation is relatively large. Small.

Description

technical field [0001] The invention relates to a high-power high-temperature superconducting miniaturized filter, which is a high-power high-temperature superconducting miniaturized filter realized by using a periodic disc photonic bandgap structure (PBG), and belongs to the field of electronic technology. Background technique [0002] An important application of thin-film high-temperature superconductors is passive devices. Because passive devices are relatively simple, they can make full use of the excellent properties of high-temperature superconducting materials. In the microwave range, the surface resistance R of the high temperature superconducting film under the same conditions S 10-1000 times lower than copper. R S The difference in order of magnitude greatly improves the performance of passive devices. For example, the Q value of microwave high-temperature superconducting resonators is tens or even hundreds of times higher than that of resonators made of convent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
Inventor 毛军发黄慧芬
Owner SHANGHAI JIAO TONG UNIV
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