Apparatus of four-surface flat wire-free packaging type radar transceiving assembly

Abstract

Disclosed is an apparatus of a four-surface flat wire-free packaging type radar transceiving assembly. The apparatus comprises a cover plate and an integrated box body composed of a ring frame and a substrate. The cover plate is welded to the top portion of the ring frame, the bottom portion of the ring frame is welded to the periphery of the front surface of the substrate, a plurality of first pads are arranged at positions, which are close to the side edge of the substrate, at the periphery of the bottom surface of the substrate, the first pads are bent and extend to the side edge of the substrate, the first pads are arranged in pairs at the periphery of the substrate, second pads connected with the bottom surfaces are arranged in the middle of the first pads, the front surface of the substrate is provided with a radar transceiving circuit, and the first pads are electrically connected with the radar transceiving circuit through plated through holes. According to the invention, by use of an advanced QFN-like packaging technology, the substrate used for device loading and circuit wiring is directly taken as one part of a package, and a base of the assembly box body is omitted. Besides, a connector-free interface technology and a cascading feed technology are employed, such that surface mounting and cascading application of the transceiving assembly are realized, the transceiving assembly is miniaturized and light in weight, and the profile height and the quality surface density of an active antenna panel can be effectively reduced.

Description

Technical field: [0001] The invention relates to the field of radar technology, in particular to a four-sided flat leadless package with the characteristics of small size, light weight, leadless, surface-mounted, and cascadable, which can effectively reduce the section height and surface density of active antennas. The device of the radar transceiver assembly. Background technique: [0002] With the gradual development of radar loads on platforms such as balloons, airships, and space-based platforms, the antenna aperture is getting larger and the number of active channels is increasing. In particular, the transceiver (T / R) component, the core component with the largest installed capacity in phased array radar, should be as lightweight and miniaturized as possible. The traditional brick-type transceiver components generally use a complete metal box as the package to meet the requirements of airtightness and shielding, and its weight is restricted by the weight of the box bod...

AI Technical Summary

Problems solved by technology

The traditional brick-type transceiver components generally use a complete metal box as the package to meet the requirements of airtightness and shielding, and its weight is restricted by the weight of the box body, especially the base; and its interface uses high-frequency and low-frequency connections Connectors need to be connected with cable assemblies or adapters to interconnect with antennas and feeder boards, requiring additional weight and space

Therefore, the traditional form of transceiver components can no longer meet the application requirements of radar loads in these occasions

Images