This invention discloses a microwave subsystem for the front of the weather radar receiver, including low-noise amplifier, low-transmission lines, Superconducting band-pass filters, shielded boxes, micro-refrigerator and vacuum sealed envelope. The described superconducting band-pass filter and low noise amplifier is set in separate shielding boxes. Superconducting band-pass filter output is connected through coaxial microwave links to a low-noise amplifier input. A heat transfer plate is placed above the micro-refrigerator cold head. Superconducting band-pass filter and low-noise amplifier isplaced in heat transfer plate. These devices are placed inside the vacuum sealed envelope. Superconducting band-pass filter input and low-noise amplifier output, through low-temperature cables, are connected to the coaxial microwave links connectors installed on the surface of the vacuum sealed envelope. This marked the reduction of the noise, and, because of the use of high-temperature superconducting narrow-band filter, meteorological radar's anti-jamming capability gets increase as 10, 000 times.