Flexible Multi-Band Radar Detection Device
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Solution Overview
Problem
Current radar detection systems are large, heavy, and not portable due to their requirement for multiple antennas and dedicated power sources, making them unsuitable for human transport and search and rescue operations, where they lack organic sensing capabilities for microwave energy frequencies.
Innovation Solution
A multi-band radar detection device with multiple antennas tuned to specific frequencies, integrated with a detection-and-control circuit and indicators on a flexible substrate, utilizing frequency selective surfaces and bolometer materials for signal discrimination and power efficiency, allowing for compact and portable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas and modulators are used to detect radar signals at different frequencies, then detection capability across frequency bands is improved, but weight and volume increase compromising portability
Solution Approach 1:
The patent combines multiple antenna elements and detection circuits onto a single flexible substrate, integrating what would traditionally be separate components into one unified device. This merging approach maintains multi-frequency detection capability while significantly reducing the overall weight and volume compared to using multiple separate antenna systems.
Solution Approach 2:
The flexible substrate with multiple antenna elements serves multiple functions simultaneously: it acts as both the structural support and the detection platform for multiple frequency bands. The single device can detect radar signals across different frequencies without requiring separate specialized equipment for each band, achieving multi-functionality in a lightweight form factor.
2Measurement precision
If multiple antennas and dedicated power sources are used for each frequency band, then detection precision is improved, but device complexity and portability are compromised
Solution Approach 1:
The patent integrates multiple detection circuits and power management components onto a single flexible substrate, combining what would traditionally be separate dedicated systems into one unified device. This integration maintains the precision needed for detecting different frequency bands while significantly reducing device complexity and eliminating the need for multiple separate power sources.
Solution Approach 2:
The flexible substrate with integrated circuits serves as a universal detection platform that can precisely detect radar signals across multiple frequency bands using shared power and control resources. This multi-functional design achieves detection precision comparable to dedicated single-frequency systems while operating as a single integrated device rather than multiple separate systems.
3Measurement precision
If traditional radar detection systems are used, then detection accuracy is maintained, but the systems are too large and heavy for human transport
Solution Approach 1:
The patent employs a flexible substrate that can be folded or rolled into a compact form, dramatically reducing the physical size and volume of the detection system while maintaining the detection accuracy of traditional systems. The flexible nature allows the device to be easily transported by hand or stored in minimal space, making it suitable for human-carried applications.
Solution Approach 2:
The flexible substrate with antenna elements can be folded or rolled into a compact nested configuration, allowing the full detection surface area to be condensed into a small portable package. When deployed, the nested structure expands to provide the necessary detection area, achieving both compact storage and full operational size.
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
Enables efficient detection of radar signals across various frequency bands in a small, lightweight, and portable form factor, providing real-time alerts through visual, audio, or tactile indicators, enhancing portability and usability in search and rescue applications.
Implementation Method 1
A detector may be integrated into the antenna structure using a bolometer material. Each antenna may receive radiant energy at a particular frequency or band, such as for radar.
Implementation Method 2
A frequency selective surface (FSS) may be used to detect signals in the radar range (e.g., 1-50 GHz) to facilitate filtering of radar signals at different frequencies or bands.
Data Source
AI summary
Various embodiments are described relating to a portable antenna-equipped device for multi-band radar detection. The detection device includes a plurality of antennas on a flexible substrate, a detection-and-control circuit, an indicator and a power source. The antenna may include one or more planar lithographic antennas that may be fabricated on a thin-film substrate. Each antenna may be tuned to a different selection frequency or band. The antennas may include a bolometer for radar detection. Each antenna may include a frequency selective surface for tuning to the selection frequency.