High-Power Microwave Sensor UAV with Segregated Enclosures for EMI Protection
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Solution Overview
Problem
High power microwave systems disrupt and disable unmanned aerial vehicles by causing electromagnetic interference, which is exacerbated by the need for remote control and navigation in such systems.
Innovation Solution
The unmanned aerial vehicle is designed with segregated enclosures coated in conductive materials to inhibit electromagnetic fields, using calibrated filters and insulated interfaces to protect components while maintaining communication and navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional unmanned aerial vehicles operate in high power microwave environments, then they can perform surveillance and remote control tasks, but they experience electromagnetic interference that disables and disrupts their operation
Solution Approach 1:
The UAV is divided into separate enclosed chambers (first chamber for low voltage components, second chamber for high voltage components) with conductive coatings. This segmentation isolates sensitive electronics from electromagnetic interference while maintaining functional separation between power systems and control systems.
Solution Approach 2:
Feedthrough connectors serve as intermediary elements that allow controlled electromagnetic coupling between chambers. These connectors include filtering components (capacitors, inductors, ferrite beads) that mediate the electromagnetic interaction, blocking harmful high-power microwave frequencies while permitting necessary signal and power transmission.
2Object-affected harmful factors
If the UAV uses conductive enclosures to shield against electromagnetic fields, then protection from high power microwaves is improved, but communication with remote control and navigation devices may be disrupted
Solution Approach 1:
The conductive enclosure is designed with differentiated local properties: continuous conductive coating on chamber exteriors for shielding, while feedthrough connectors provide localized controlled coupling points. This allows the enclosure to simultaneously block external electromagnetic interference and permit controlled signal transmission for communication and navigation.
Solution Approach 2:
The shielding structure combines conductive materials (for electromagnetic blocking) with filtered feedthrough connectors (containing capacitors, inductors, and ferrite beads). This composite approach creates a multi-functional barrier that rejects harmful frequencies while transmitting necessary communication signals.
3Object-affected harmful factors
If the UAV integrates both low voltage and high voltage components in separate enclosures, then protection from electromagnetic interference is enhanced, but device complexity increases
Solution Approach 1:
The UAV system is segmented into distinct functional modules housed in separate enclosed chambers: low voltage components (signal processing, radio transceivers, flight controller) in the first chamber, and high voltage components (power distribution, electronic speed controllers) in the second chamber. This modular segmentation simplifies electromagnetic interference management while maintaining functional integration.
Solution Approach 2:
The chambers are nested within the central body structure, with each chamber containing its designated components. The feedthrough connectors nest through the chamber walls, providing integrated coupling between compartments without requiring complex external wiring arrangements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively shields components from high power microwaves, ensuring uninterrupted operation and communication, thereby enhancing the resilience of unmanned aerial vehicles in electromagnetic interference environments.
Implementation Method 1
a first continuous covering of a first conductive material on the first outer surface to inhibit electromagnetic fields; a second continuous covering of a second conductive material on the second outer surface thereof to inhibit electromagnetic fields
Implementation Method 2
a barometric pressure feedthrough having a first length and a first diameter and configured to pass air through the central body of the unmanned aerial vehicle
Data Source
AI summary
Systems and apparatus are provided for a high-power microwave sensor using an unmanned aerial vehicle. The unmanned aerial vehicle may include a central body, at least one electric motor, and a barometric pressure feedthrough. The central body may include a first enclosure housing a plurality of low voltage components, a voltage feedthrough connector, and a second enclosure housing a plurality of high voltage components. The low voltage components may include a first signal processing system, a first radio transceiver, a flight controller, a second signal processing system, a second radio transceiver, and a navigation system. The high voltage components may include a plurality of electronic speed controllers, a power distribution module, an input power interface, and a plurality of high power filters. The components of each enclosure may be segregated such that the high voltage components do not create electromagnetic interference with the low voltage components.