A superconducting filter system with integrated antenna

Abstract

The invention discloses a superconducting filtering system of an integrated antenna. The antenna is arranged in the vicinity of a superconducting filter and an amplifier in a vacuum chamber, internaldevices of the vacuum chamber do not need to be connected with the cable of an external antenna, and the heat leakage caused by the connection of the cable and the wall of the vacuum chamber is greatly reduced, so that the refrigerating capacity required for the entire system is reduced; meanwhile, the insertion loss caused by the connection of the cable is reduced; the antenna in the invention isplaced in a vacuum low temperature environment, so that the noise temperature of the antenna can be reduced, and the top of the chamber is sealed by a material with good antenna penetration performance such as a wave-transparent sandwich material; the antenna is integrated into the vacuum chamber of the superconducting filter system, so that the volume of the entire system is reduced, and the processing complexity of the vacuum chamber is reduced; and the stability is higher, and the performance is better.

Description

technical field [0001] The invention belongs to the field of microwave devices, and in particular relates to a superconducting filter system with an integrated antenna. Background technique [0002] RF front-end systems and antennas play a vital role in various communication systems, and their technical indicators and characteristics are the key to the performance of the entire communication system. The high-temperature superconducting filter system in the RF front-end system has the advantages of extremely small insertion loss, extremely high out-of-band suppression and steep band edges, and is widely used in mobile communications, radio astronomy and other fields. In order to perform signal processing on antenna signals in multiple directions, a superconducting filter system with more channels is required, that is, a single refrigerator integrates a larger number of superconducting filters and low-temperature low-noise amplifiers. In addition, a corresponding number of ca...

AI Technical Summary

Problems solved by technology

The greater the number of devices and cables, the greater the cooling capacity required, making system integration more difficult; system loss will also increase, and performance and efficiency will decrease

To sum up, with the increase of the number of antennas, the volume of the entire system increases and the integration level is low, which cannot meet the current needs

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