Extensible highly-integrated active phased array antenna

Abstract

The invention discloses an extensible highly-integrated active phased array antenna. The antenna basically comprises an antenna array plane, a thermal control structure, a TR module array, a secondary feeding network, a primary feeding network, a power module, and a wave control module. The antenna is implemented by the following scheme: the TR module array is designed into a brick type linear array, eight-channel TR modules are used as sub arrays of the linear array, and the TR module array is expanded according to the integral multiple of the eight-channel TR modules; the antenna array plane, the thermal control structure, the secondary feeding network, the primary feeding network, the power module and the wave control module are stacked like tiles; a low-frequency flexible connector integrates power supply to the TR modules and feeding of on-off, phase shift, attenuation and other low-frequency control signals, and realizes highly-integrated cable-free vertical interconnection of low-frequency feeding between the TR modules and a power supply and the wave control module. In addition to the advantages of high power and large scanning angle possessed by the traditional brick type architecture, the extensible highly-integrated active phased array antenna has the advantages of low longitudinal profile height, high degree of integration, small insertion loss, and two-dimensional extension possessed by a tile type architecture.

Description

technical field [0001] The invention relates to an active phased array antenna, in particular to a scalable and highly integrated active phased array antenna. Background technique [0002] Active phased array antenna is the core part of phased array radar, and its integration level determines the performance and cost of the entire system. The higher the operating frequency, the smaller the area of ​​each array element, and the higher the integration requirements. There are two types of integrated array structures for active phased array antennas: horizontally integrated vertically assembled based on tiled surface arrays and vertically integrated horizontally assembled based on brick-styled line subarrays. [0003] The characteristics of high integration, low profile, low mass areal density, and two-dimensional expandability in telecommunications and structure of the tile-type active antenna make it suitable for high-density integration and low-mass areal density phase contr...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this brick-type active phased array antenna in the prior art is that each line array requires independent control modules such as wave control and power supply, resulting in a large number of wave control and power supply chips required by the system; The vertical dimension of the column feed network is large, which leads to the excessively large longitudinal section height of the entire active array, and requires a high longitudinal space for the installation platform; at the same time, the vertical dimension perpendicular to the array is large, resulting in long signal transmission distance and large insertion loss

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