Multilayer Antenna Embedded in Aircraft Structural Panel
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Solution Overview
Problem
Traditional phased array antenna systems are large, heavy, and occupy significant internal volume in aircraft, or create drag when attached to the exterior, necessitating a more compact and drag-free integration solution.
Innovation Solution
A phased array antenna is embedded within a structural panel of an aircraft using multiple layers of RF penetrable materials like fiberglass, with antenna and distribution layers connected via vias for electrical communication, eliminating the need for a separate support structure and reducing drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a phased array antenna system is integrated into the interior volume of an aircraft, then the antenna can be protected from external drag, but it occupies substantial internal volume and requires heavy support structure
Solution Approach 1:
The patent merges the antenna system with the aircraft's structural panel by integrating the antenna elements, distribution network, and support structure into a single multilayer assembly. The antenna elements are formed on a dielectric substrate that serves as both the antenna support and a structural component of the aircraft panel, eliminating the need for separate support structures and reducing internal volume occupation.
Solution Approach 2:
The dielectric substrate serves multiple functions: it supports the antenna elements, provides mechanical strength as part of the aircraft panel structure, and acts as an RF transmission medium. This multi-functionality eliminates the need for dedicated support structures, reducing both weight and internal volume requirements.
2Volume of stationary object
If a phased array antenna system is attached to the exterior of an aircraft, then internal volume is preserved, but it adds substantial drag to the aircraft
Solution Approach 1:
The antenna system is merged with the aircraft's structural panel, allowing it to be installed in flat surfaces such as fuselage or wing panels. This integration enables the antenna to maintain aerodynamic fairness when positioned on exterior surfaces, significantly reducing drag compared to traditional protruding antenna installations.
3Volume of stationary object
If a phased array antenna system is made compact, then internal volume occupation is reduced, but the structural support requirements increase
Solution Approach 1:
The support structure is merged with the aircraft's existing structural panel, which is designed to bear aerodynamic loads. The antenna elements are mounted on the panel's skin or integrated into the panel's laminate structure, allowing the panel itself to provide the necessary mechanical support without requiring additional heavy support structures.
4Stability of the object's composition
If traditional antenna support structures are used, then structural stability is ensured, but weight and complexity increase
Solution Approach 1:
The aircraft's structural panel serves dual purposes: it provides the aerodynamic skin and simultaneously supports the antenna system. The panel's skin acts as the mounting surface for antenna elements, eliminating the need for separate support structures and reducing overall weight while maintaining structural stability.
Solution Approach 2:
The patent employs composite material construction for the structural panel, combining dielectric materials with structural reinforcements. This allows the panel to provide both mechanical support and RF transmission properties, reducing the need for additional support structures and minimizing weight.
Data Source
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AI summary
A structural panel of an aircraft is constructed with a multiphase antenna embedded inside the structural panel between multiple sheets of fiberglass.