Integrated antenna shell for Mars exploration landing rover and preparation method thereof

Abstract

The invention provides an integrated antenna shell for a Mars exploration landing rover and a preparation method of the integrated antenna shell. The integrated antenna shell is formed through the steps of shell molding mold manufacturing, carbon fiber / polyimide prepreg preparation, shell laying-up, imidization, curing, demolding, machining, metal plating on the inner surface of the shell and thelike. According to the integrated antenna shell for the Mars exploration landing rover, by the adoption of an auxiliary molding manner of a female and male combined mold and a high-temperature-resistant silicone rubber soft mold, one-time integrated molding of an autoclave molding process is adopted, and the prepared shell has the multi-function integrated characteristics of the light mass, resistance of the high temperature of 370 DEG C, space environment resistance and structure bearing; and meanwhile a coupling technology of a nanometer silver particle modified shell base body and an innersurface vacuum sputtering metallization layer is adopted, an electromagnetic shielding function of the antenna shell is achieved, the containing structure space occupied by a traditional antenna connecting cable is omitted, the interface connection is further reduced, and the structure manner of the shell is simplified while the space utilization rate is increased.

Description

technical field [0001] The invention relates to an integrated antenna casing and a preparation method thereof, in particular to an integrated antenna casing for a Mars exploration and landing patrol device and a preparation method thereof. Background technique [0002] Recently, the field of deep space exploration has become the main battlefield of the space competition between major countries, and the deep space exploration landing patrol tends to be characterized by high performance, high integration, and high reliability of long-distance work. At present, the longer-distance deep space exploration represented by Mars exploration and Saturn exploration has more stringent requirements for the high reliability of long-distance work of this type of deep space exploration and landing patrol, especially the long-distance effective transmission of antenna signals is extremely demanding. important. As an important part to protect the normal operation of the antenna system of the...

AI Technical Summary

Problems solved by technology

Lightweight and high-strength epoxy / glass fiber reinforced plastic and cyanate / glass fiber reinforced plastic antenna protection shells have a service temperature not higher than 200°C, so there are great application limitations due to their service temperature constraints

In addition, epoxy / glass fiber reinforced plastics and cyanate / glass fiber reinforced plastic composites have their own shortcomings in space resistance, especially poor resistance to high and low temperature cycles in space, and poor dimensional stability of their components

Inorganic ceramic antenna shells can meet the temperature resistance requirements, but their application is restricted by the disadvantages of heavy weight, brittleness, long molding cycle, poor machining performance and low mechanical load capacity.

The carbon fiber / polyimide antenna shell has excellent heat resistance and mechanical properties, high specific strength, and excellent space environment resistance performance, but the carbon fiber / polyimide multifunctional integrated antenna shell for deep space probes is in the No domestic reports

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