Low-feed-loss integrated airborne weather radar

Abstract

The invention discloses a low-feed-loss integrated airborne weather radar, which mainly solves the problems that an existing radar system is large in radio frequency feed loss, and the size of an antenna cannot be selected according to user requirements. The low-feed-loss integrated airborne weather radar comprises a waveguide slot array antenna (1), an X-band integrated transceiving assembly (2),a pitching transmission mechanism (3), an azimuth transmission mechanism (4) and a radar base (5); the X-band integrated transceiving assembly is connected with the azimuth transmission mechanism through the pitching transmission mechanism, and the azimuth transmission mechanism is installed on the radar base. The X-band integrated transceiving assembly adopts an integrated structure integratinginterface control, frequency synthesis, power amplification, a circulator, a receiving front end and intermediate frequency amplification, and is directly connected with the waveguide slot array antenna through a waveguide blind plug interface. According to the invention, the radio frequency feed loss of a radar system is reduced, the installation spaces of waveguide slot array antennas of different sizes can be matched through the support cushion blocks of the azimuth transmission mechanism, and the radar can be used for detecting and positioning dangerous targets.

Description

technical field [0001] The invention belongs to the technical field of radar, and in particular relates to an airborne weather radar, which can be used to detect and locate dangerous targets such as meteorological clouds and turbulence that affect the flight safety of the aircraft, and improve the ability of the aircraft to perceive the surrounding dangerous weather conditions. Background technique [0002] Airborne weather radar is an indispensable flight safety guarantee equipment for various aircraft. It can detect meteorological targets such as meteorological clouds, turbulence, and other non-meteorological objects within a certain airspace range on the route ahead of the aircraft during flight. The distribution status of the target, and the information of the detected target's outline, azimuth, distance and meteorological cloud rainfall are displayed on the display, and the crew can provide the crew with functions such as early warning of dangerous weather conditions. It...

AI Technical Summary

Problems solved by technology

However, since the transceiver components of the existing integrated airborne weather radars are installed on the radar base, such as the GWX68 integrated airborne weather radar of the US company GARMIN and the PRIMUS 440, 660, 880 integrated RTA weather radars of the US Honeywell company, these radars Both the transceiver components and the antenna need to be connected through radio frequency cables or waveguides. The radio frequency feed loss of the radar system is relatively large, which reduces the detection performance of the radar.

At the same time, due to the fixed structure of the existing integrated airborne weather radar, only fixed-size antennas can be installed, which cannot be selected according to user needs

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