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High-power superconduction filter with superimposed structure

A stacked structure and filter technology, applied in waveguide devices, electrical components, circuits, etc., can solve problems such as difficulties in high-power superconducting filters

Inactive Publication Date: 2009-06-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the size of the superconducting film (the diameter of the existing superconducting film is generally 2 to 3 inches), it will be very difficult to design a higher-order high-power superconducting filter

Method used

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  • High-power superconduction filter with superimposed structure
  • High-power superconduction filter with superimposed structure
  • High-power superconduction filter with superimposed structure

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Embodiment Construction

[0015] The circuit structure of the high power superconducting filter embodiment 1 proposed by the present invention is as follows figure 2 shown. The high-power superconducting filter is designed according to the requirements of China's third-generation mobile communication system TD-SCDMA. The filter center frequency is 2017.5MHz and the bandwidth is 15MHz. 20 in the figure is LaAlO 3 substrate. figure 2 (a) is the circuit structure diagram of each component of the superconducting filter, where 21 is the input feeder, 22 is the first resonator, 23 is the second resonator, 24 is the third resonator, and 25 is the output feeder. The input feeder 21 and the first resonator 22 form the first component, the second resonator 23 is the second component, the third resonator 24 and the output feeder 25 form the third component, and each component is arranged in one piece On the surface of a single substrate 20, the dimensions of the substrates are all 21 mm×9.6 mm. The width of...

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Abstract

The invention relates a high-power superconduction filter with a superimposed structure, which belongs to the technical field of microwave engineering. The filter comprises an incoming feeder installed in an encapsulation box, an outgoing feeder and a plurality of components, wherein, the components are opposite up and down and are put in a staggered manner; and each component comprises one or more harmonic oscillators which are arrayed sequentially and arranged on a substrate. The designed high-power superconduction filter is not limited by the size of a thin film superconductor, so that the superconduction filter with higher order and larger power bearing capacity can be prepared by using the thin film superconductor with limited size, so as to increase the power bearing capacity and the frequency response characteristic of the superconduction filter.

Description

technical field [0001] The invention belongs to the technical field of microwave engineering, and in particular relates to the structural design of a superconducting filter with relatively high power bearing capacity. Background technique [0002] In the microwave frequency band, the microwave surface resistance of superconducting thin films is more than two orders of magnitude lower than that of conventional metals. Using superconducting materials can realize high-performance filters with small insertion loss, good out-of-band suppression, and steep band edges, which have incomparable performance with conventional metal filters. Since the discovery of high-temperature superconducting materials in 1986, after more than 20 years of development, superconducting filters with excellent frequency response characteristics for wireless communication reception have been developed. In addition to the requirements for frequency response characteristics, the filter for communication t...

Claims

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Application Information

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IPC IPC(8): H01P1/203
Inventor 郭旭波曹必松张晓平魏斌
Owner TSINGHUA UNIV
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