Multi-subarray phased-array antenna beam control device

Abstract

The invention discloses a multi-subarray phased-array antenna beam control device, and aims to provide a wave control device, which can overcome the defects that a traditional phased-array antenna islow in response speed, cannot be reused, is complex in connection and is not easy to expand. According to the technical scheme, each subarray controls phase shift of N array elements, and the multiplesubarrays are spliced together; a main control board carries out command issuing, state monitoring and fault detection on the multiple subarrays through a terminal machine communication interface, asingle subarray wave control board independently completes data receiving and transmitting, each subarray wave control board adopts an FPGA to achieve protocol analysis, unified operation is carried out on phases and amplitude phase codes of antenna array element unit points on an array plane, an address code calculated by beam pointing and frequency is transmitted to each phase shifter control circuit, the subarray wave control board transmits the calculated wave control digital, phase and amplitude data to each point of an antenna array element array plane respectively, and the correspondingphase shifter is controlled to each antenna unit so as to realize N antenna array element phased array antenna beam control.

Description

technical field [0001] The invention relates to a multi-subarray phased array antenna beam control device in the fields of measurement and control, communication and the like. Background technique [0002] Large and very large phased array radars are increasingly widely used due to their high gain, high resolution, and multiple beams. With the development of active phased array radar technology, more and more large-scale phased array radars have emerged, and the number of radar array elements has gradually changed from a few dozen to tens of thousands or more. The design of the array structure is also becoming more and more complex, among which beamforming is the key technology for phased array radar to achieve beam control. In order to make the design of the beam control system tend to be modular and systematic, the array of a large phased array antenna is usually divided into several sub-arrays, so that any large phased array antenna can be combined with multiple sub-arra...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the deficiencies in the beam control of large-scale phased array antennas, to provide a simple interconnection, low power consumption, small size, simple and fast wave control method, high computing speed, stable work, easy expansion, and universality Strong multi-subarray phased array antenna beam control device to overcome the traditional phased array antenna beam control device slow response speed, can not be reused, complex connection, difficult to expand and other problems

Images