Design method of phased array channel amplitude-phase correction network and storage medium

Abstract

The invention relates to the field of radio frequency circuits, and discloses a design method of a phased array channel amplitude-phase correction network and a storage medium. The method comprises the following steps: respectively manufacturing an antenna interconnection port layer, a strip line radio frequency layer and a TR interconnection port layer on a radio frequency substrate, and then carrying out composite lamination on a plurality of radio frequency substrates; the antenna interconnection port layer is interconnected with an antenna by adopting a microminiature surface-mounted radio frequency connector, or the antenna is made into surface-mounted packaging to be interconnected with the antenna interconnection port layer; the TR interconnection port layer is connected with a TR type front-end assembly in a micro surface-mounted radio frequency connector mode, or the TR type front-end assembly is made into a surface-mounted package to be interconnected with the TR interconnection port layer; and the strip line radio frequency layer is arranged in an integrated resistor substrate embedding mode. According to the method, the amplitude-phase consistency coupling correction of components between broadband phased array radio frequency channels and the amplitude-phase consistency correction of environment change are realized.

Description

technical field [0001] The invention relates to the field of radio frequency circuits, in particular to a design method and a storage medium of a phased array channel amplitude and phase correction network. Background technique [0002] With the rapid development of radar, communication and other systems, active phased array systems are more and more used in various radar and communication systems, and in phased array systems, the amplitude and phase of each array element corresponding to the radio frequency channel are consistent The performance index has a crucial impact on the performance of the phased array system, which will directly affect the power radiation efficiency of the phased array, the beam pointing accuracy, etc. The consistency of the amplitude and phase is the key index of the phased array system. However, there is amplitude and phase inconsistency between components / channels in the phased array system. The real-time correction of the amplitude-phase consi...

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Problems solved by technology

[0003] The RF channel amplitude-phase consistency correction method of the phased array system currently mainly includes: (1) external radiation correction, by placing a radiation source in the phased array radar irradiation area, and receiving the corresponding radiation signal through the phased array for phase control The amplitude-phase consistency correction of the array system, but this method cannot quickly and conveniently realize the correction of the amplitude-phase consistency, and the correction effect and feasibility are greatly affected by the environment where the radar is located.

(2) Built-in phased array detection and calibration network, this method can input the calibration signal to each array element through the corresponding power division network and coupling network, but because the phase of the calibration signal at each array element is inconsistent Yes, the calibration of the phased array phase can only complete the function detection of the channel, the calibration of the phase and other changes with temperature, etc., and cannot calibrate the inherent phase inconsistency caused by factors such as equipment and assembly in the link, and the initial calibration remains the same. Requires correction using methods such as external radiation

And the integrated resistance is still achieved by external welding, only non-resistive power division and coupling can be embedded, and the working bandwidth is narrow

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