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Tunable superconducting filter, and manufacturing method and metal shielding box of tunable superconducting filter

A manufacturing method and filter technology, applied to resonators, waveguide devices, electrical components, etc., can solve the problems of narrow bandwidth and high adjustable range of filters

Inactive Publication Date: 2012-04-04
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] An object of the present invention is to provide a tunable superconducting filter and its manufacturing method, and a metal shielding box, which are used to solve the problem that the prior art filter cannot be applied to high adjustable range, narrow bandwidth, and low loss requirements

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  • Tunable superconducting filter, and manufacturing method and metal shielding box of tunable superconducting filter
  • Tunable superconducting filter, and manufacturing method and metal shielding box of tunable superconducting filter
  • Tunable superconducting filter, and manufacturing method and metal shielding box of tunable superconducting filter

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Embodiment Construction

[0039] The detailed description and technical content of the present invention are described as follows in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, it is a tunable superconducting resonator, wherein (a) is a varactor diode and a fixed capacitance superconducting resonator, and (b) is a varactor superconducting resonator with opposite polarities.

[0041] exist figure 1 In (a), the superconducting microstrip resonator 01 is connected to the semiconductor varactor diode 02 and the fixed capacitor 03 .

[0042] exist figure 1 In (b), the superconducting microstrip resonator 01 is connected to two semiconductor varactor diodes 02 with opposite polarities.

[0043] The superconducting microstrip resonator 01 is made by using a high temperature superconducting microstrip line.

[0044] Such as figure 2 Shown is a schematic structural diagram of the second-order tunable superconducting bandpass filter of the present invention. In this fig...

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Abstract

The invention relates to a tunable superconducting filter, and a manufacturing method and a metal shielding box of the tunable superconducting filter, wherein the tunable superconducting filter comprises a plurality of superconducting micro-strip resonators a superconducting micro-strip input connector and a superconducting micro-strip output connector; a semiconductor capacitance-variable diode for adjusting the frequency of the tunable superconducting filter and a fixed capacitor for isolating the direct current voltage of the semiconductor capacitance-variable diode are arranged on each superconducting micro-strip resonator; or two semiconductor capacitance-variable diodes which have opposite negative polarities and are used for adjusting the frequency of the tunable superconducting filter are arranged; and the superconducting micro-strip input connector and the superconducting micro-strip output connector are connected with external microwave circuits. In combination with the advantages of low microwave loss of a superconducting material, high tenability and quick response speed of the semiconductor capacitance-variable diodes and the like, the microwave tunable filter with high turning scope, wide narrow band, low loss and quick adjustable speed is manufactured.

Description

technical field [0001] The invention relates to the technical field of radio frequency or microwave engineering, in particular to a tunable superconducting filter suitable for the requirements of a narrow-band highly tunable filter, a manufacturing method thereof, and a metal shielding box. Background technique [0002] Tunable filters can be used in personal communication systems, frequency hopping receivers, satellite communications, radar systems, etc., and play an increasingly important role in microwave systems. At present, tunable filters mainly include mechanically tunable filters, magnetically tunable filters, and electrically tunable filters. Mechanically tuned filters can be manually tuned or driven by a motor, which has high power handling capability, but suffers from slow tuning speed and bulky size. Magnetically tuned filters are mainly Yttrium-Iron-Garnet (YIG) filters, which are currently the most commonly used tunable microwave filters, with a large adjustab...

Claims

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Application Information

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IPC IPC(8): H01P1/203H01P7/08H01P11/00
Inventor 王佳郭进边勇波崔彬周曙煜何晓锋李超吴云李娜王旭李国强张强张雪强黎红李春光孟继宝何豫生
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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