Power supply module satisfying requirements for power supply unit of anti-interference antenna of airborne satellite

Abstract

The invention discloses a power supply module satisfying requirements for a power supply unit of an anti-interference antenna of an airborne satellite. The module comprises a casing, a circuit board and input and output connectors, the circuit board is sealed in the casing, and the input and output connectors are fixed in the two ends of the circuit board respectively; and the circuit board is provided with an input overcurrent protection circuit, a reversal connection preventive protection circuit, a DC filtering circuit, a peak voltage inhibition circuit, an overvoltage surge inhibition and self-recovery type overvoltage protection circuit, a filtering power storage circuit, an undervoltage protection setting circuit and a DC voltage conversion circuit. The sealed metal shielding casing and the metal connectors wrap the circuit board, a high electromagnetic shielding performance of the power supply module is ensured, the power supply module can satisfy index requirements, in the aspect of electrical performance, for the power supply unit of the anti-interference antenna of the airborne satellite of different models protection functions are complete, input and output misinsertion is prevented, the power supply index is kept accurate and consistent, the production efficiency can be improved, the research and development period is shortened, and the product and development cost is reduced.

Description

technical field [0001] The invention relates to a satellite anti-jamming antenna power supply system, in particular to a power supply module meeting the requirements of an airborne satellite anti-jamming antenna power supply unit. Background technique [0002] In recent years, the design principles of various types of airborne satellite anti-jamming antennas are almost consistent, mainly including shell structure, power supply unit, digital anti-jamming processing unit, radio frequency unit and antenna array unit, mainly for different models. Different appearance structure designs, different software protocol conversions and related anti-jamming indicators are proposed. Almost the same specification requirements are applied to the technical indicators of the power supply unit. The power supply unit is required to output a DC 5V voltage, and the maximum steady-state load power consumption is about 10 watts, which meets the power supply characteristic requirements of the 28V a...

AI Technical Summary

Problems solved by technology

In the previous product design, according to different product models, the designer needs to divide the structural location and negotiate the design method of each unit. For the power supply unit, it needs to correspond to the position of the power output interface of the digital unit and the radio frequency unit. It is also necessary to correspond to the position of the input interface of the external power supply. If there is no effective and comprehensive communication, it is easy to cause a position error, resulting in cross-connection disorder and affecting the overall design plan.

Moreover, the designer needs to re-layout the board according to the actual needs, which increases the development time and R&D cost, and it is easy to produce design mistakes in the tedious work of laying out the board, resulting in waste of design

On the other hand, the current power supply unit is designed in the form of a bare board. Due to the high power and high frequency characteristics of the power supply unit, it will affect the electromagnetic compatibility index of the whole machine, and it will also resist electromagnetic interference from other units inside the interference antenna. Causes a decline in multiple technical indicators of the whole machine. If not handled properly, it will affect the anti-jamming capability of the anti-jamming antenna and the receiving strength of satellite signals, further affecting the positioning information of the receiver and reducing the positioning accuracy

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