Active phased array antenna electrical performance analysis method and system with integrated temperature knowledge

Abstract

The invention belongs to the technical field of active phased array antennas, discloses an active phased array antenna electrical performance analysis method and a system thereof with integrated temperature knowledge. The method comprises: determining input sample data of temperature knowledge; modeling the obtained data samples; realizing data naturalization by the linear naturalization process;loading the data into the ELM algorithm for training and learning; determining the ambient temperature by thermal analysis, predicting and reconstructing the parameters at the current temperature; generating the s2p file from the predicted data as the power amplifier electrical performance output at the current temperature; extracting S parameters in the HFSS software simulation; and importing theobtained electrical performance S parameters into Ansoft designer software for electrical performance simulation analysis. The invention obtains the S parameters of the device at different temperatures by using the spline interpolation fitting method, and obtains the beam pointing and antenna gain under the influence of thermal load by performing systematic cascade analysis and solving in the Designer software.

Description

technical field [0001] The invention belongs to the technical field of active phased array antennas, and in particular relates to a method and system for analyzing the electrical performance of an active phased array antenna integrating temperature knowledge. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: The phased array antenna is the most important antenna form in the current satellite mobile communication system. The phased array antenna system consists of thousands of antenna units arranged in a certain order, and each antenna unit has a controllable phase shift A phase shifter or an amplitude-phase adjuster consisting of a phase shifter and an attenuator. The sweeping of the waves is achieved by phase control. The core component of the phased array antenna is the T / R module. The T / R module includes active components such as limiters, low noise amplifiers, and power amplifiers. An array contains thous...

AI Technical Summary

Problems solved by technology

[0003] In summary, the problems in the prior art are: Active phased array antenna has high installation density and high working frequency band. Its core component T / R component generates a lot of heat and has obvious multi-field coupling effect. A large amount of heat consumption in the T / R component circuit will affect the performance of high-power amplifiers. performance, and also affects the matching between the high power amplifier and the feeder, and then the output electrical performance of the component

[0004] The difficulty and significance of solving the above technical problems: As the active phased array antenna system moves toward high density and miniaturization, the thermoelectric coupling effect of the antenna becomes more obvious under different ambient temperatures, which in turn has a great impact on the performance of the antenna system.

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