A Cryogenic Microwave Filtering System Based on Adiabatic Spatial Electromagnetic Coupling

Abstract

The invention discloses a low-temperature microwave filtering system based on electromagnetic coupling of adiabatic space, The invention can effectively solve the problem that the conductive heat leakage of the low-temperature microwave filter module is large due to the direct connection of the input and output cables, and the conductive heat leakage of the low-temperature microwave filter moduleis reduced by the way of electromagnetic coupling in the adiabatic space, so that the whole temperature of the low-temperature microwave filter module is uniform and stable, and the performance of thelow-temperature microwave filter module is more stable and excellent; (cable with more excellent performance, i. E., coarser and short than previously available, enable that overall volume of the microwave electronic system to be reduced, the performance to be better, the power to be great, and the miniaturization of the microwave electronic system to be facilitated; On the premise of installingthe same number of cryogenic filter modules, the power consumption of the refrigeration platform is greatly reduced, and the volume and manufacturing cost of the superconducting electronic system aregreatly reduced. It makes possible the realization of some multi-channel superconducting electronic systems which can not be manufactured due to the limitation of cryogenic platforms.

Description

technical field [0001] The invention belongs to the technical field of low-temperature microwave filtering, and in particular relates to a low-temperature microwave filtering system based on adiabatic space electromagnetic coupling. Background technique [0002] Microwave electronic systems play a vital role in various communication systems, and the technical indicators and characteristics of high-performance microwave systems play a key role in the entire communication system. [0003] Since the discovery of superconducting materials, they have been widely used in the fabrication of microwave devices. However, whether it is a high-temperature superconducting device or a low-temperature superconducting device that has been commercially used today, its working temperature is below 100K (minus 173 degrees Celsius), and it needs to meet the requirements of a lower working environment temperature. [0004] Cryogenic filter component is a very important microwave filter componen...

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Problems solved by technology

[0006] On the other hand, the refrigerator is an important component of the microwave electronic system. Modern microwave electronic systems have increasingly demanding requirements for its miniaturization. The greater the power consumed, the larger the volume, and the weight and auxiliary facilities of the refrigerator are also more, which has become a major bottleneck in the integration and application of microwave electronic systems

The smaller the refrigerator, the more difficult it is to increase the usable effective power

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