High-integration and low-cost active phased array radar radio frequency front end

Abstract

The invention discloses a high-integration and low-cost active phased array radar radio frequency front end. A single microwave multilayer printed board is used as a carrier, and an array antenna, a transceiving component, a down converter, a correction network and a digital control module are simultaneously integrated on a board card, wherein the array antenna is used for receiving and transmitting radio frequency signals, the transceiving component is used for amplifying, shifting and attenuating the transceiving radio frequency signals and switching the transceiving and correction modes, the down converter is used for down-converting and receiving of echo signals, the correction network is used for correcting phase errors of each transceiving channel, and the digital control module is used for finishing the control of amplifiers, switches and phase shifters at all levels in the system. The integrated design scheme is adopted, the structure is simple, the size and the weight of the active phased array radar radio frequency front end are effectively reduced, and the system cost is reduced.

Description

technical field [0001] The invention relates to the technical field of phased array radar, in particular to a high-integration, low-cost active phased array radar radio frequency front end. Background technique [0002] Compared with traditional mechanical scanning radar, phased array radar can change the beam direction to scan, and has the advantages of flexible beam pointing, high data rate, large target capacity and strong anti-interference ability. Phased array radar can be divided into passive phased array radar and active phased array radar. Technical performance and better development prospects are important trends in the development of phased array radar technology in the future. [0003] In the RF front-end system of traditional active phased array radar, modules such as antennas and transceiver components are structurally self-contained and separate, and are electrically connected through interconnecting devices such as cables and connectors, resulting in a compli...

AI Technical Summary

Problems solved by technology

[0003] In the RF front-end system of traditional active phased array radar, modules such as antennas and transceiver components are structurally self-contained and separated, and are electrically connected through interconnecting devices such as cables and connectors, resulting in a complicated system structure. It is difficult to control the size, weight, and power consumption, and the cost of the radar system also increases sharply with the increase of the array size

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