Differential Segmented Aperture RF Jamming for Wideband UAV Disruption
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Solution Overview
Problem
Current RF jamming technologies are limited in their ability to effectively disrupt radio-controlled vehicles, such as UAVs, across a wide range of frequencies and angles, posing a risk to airspace safety and security.
Innovation Solution
A radio frequency (RF) jamming device employing a differential segmented aperture (DSA) with electrically conductive tapered projections and RF electronics that amplify and split jamming signals to emit a directional beam, allowing for customizable frequency jamming and 360-degree coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional RF jamming technologies are used, then jamming can be provided at specific frequencies, but the ability to effectively disrupt radio-controlled vehicles across a wide range of frequencies and angles is limited
Solution Approach 1:
The aperture is divided into multiple independently controllable segments or elements. Each segment can be individually activated or deactivated based on the required jamming direction and frequency, allowing the system to cover a wide angular and frequency range while maintaining effective jamming power in each direction through coordinated segment operation.
Solution Approach 2:
The RF jamming system employs dynamic beamforming capabilities where the phase and amplitude of signals fed to each aperture element are continuously adjustable. This allows the jamming beam to be electronically steered across wide angles and adaptively shaped to track moving UAVs, providing both wide coverage and reliable disruption effectiveness.
2Power
If high-power jamming is provided over a broad spectrum, then effective disruption of UAVs is achieved, but device complexity increases
Solution Approach 1:
Multiple RF signal generation and amplification functions are merged into an integrated aperture assembly where shared RF electronics can control multiple aperture segments. This consolidation reduces overall device complexity while still delivering high total jamming power through the coordinated operation of multiple aperture elements driven by the integrated RF system.
Solution Approach 2:
The RF electronics are designed with universal, multi-functional capabilities that allow a single set of signal generation and control circuits to serve multiple aperture segments across different frequencies and beam directions. This multi-functionality reduces the need for separate dedicated electronics for each frequency band or direction, thereby reducing overall device complexity while maintaining high jamming power.
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 solution provides high-power jamming capabilities over a broad spectrum, enabling effective disruption of UAVs and other radio communications across a wide range of frequencies and angles, enhancing airspace and security-sensitive area protection.
Implementation Method 1
the DSA emits a jamming beam at the one or more frequencies or frequency bands which are to be jammed
Data Source
AI summary
A radio frequency (RF) jamming device includes a differential segmented aperture (DSA), a jammer source outputting a jamming signal at one or more frequencies or frequency bands to be jammed, and RF electronics that amplify and feed the jamming signal to the DSA so as to emit a jamming beam. The DSA includes an array of electrically conductive tapered projections, and the RF electronics comprise power splitters configured to split the jamming signal to aperture pixels of the DSA. The aperture pixels comprise pairs of electrically conductive tapered projections of the array of electrically conductive tapered projections. The RF electronics further comprise pixel power amplifiers, each connected to amplify the jamming signal fed to a single corresponding aperture pixel of the DSA. The RF jamming device may include a rifle-shaped housing, with the DSA mounted at a distal end of the barrel of the rifle-shaped housing.