Near-Isotropic Polyhedral Antenna for Orientation-Independent Signal Monitoring
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Solution Overview
Problem
Existing methods for analyzing electromagnetic signals from electronic systems are limited by orientation-based sensitivity, making it difficult to characterize the operating parameters of these systems effectively.
Innovation Solution
A system utilizing a near-isotropic antenna with receiving surfaces arranged in a regular polyhedron, such as an icosahedron, to monitor and analyze target electromagnetic signals, which eliminates directional dependence and allows for comprehensive characterization by generating and comparing electromagnetic-signal fingerprints using nonlinear, nonparametric regression techniques and sequential-analysis methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional antenna is used to monitor electromagnetic signals, then the signal reception is sensitive to antenna orientation, but this orientation-based sensitivity limits the ability to characterize parameters of the monitored electronic system
Solution Approach 1:
The antenna is divided into multiple receiving surfaces (e.g., six surfaces for an octahedron, twelve surfaces for an icosahedron) arranged in a regular polyhedron. Each surface independently receives electromagnetic signals from different directions, allowing the system to capture signals regardless of the antenna's orientation in space. This segmentation enables comprehensive signal monitoring while eliminating orientation dependence.
Solution Approach 2:
The patent transitions from a conventional single-direction or limited-direction antenna to a three-dimensional polyhedral structure with surfaces distributed in multiple spatial dimensions. This dimensional expansion allows the antenna to receive signals from all directions simultaneously, making the measurement system adaptable to any orientation of the monitored electronic system.
2Measurement precision
If the antenna orientation is fixed to optimize signal reception, then measurement precision improves, but the system cannot adapt to different orientations of the monitored electronic system
Solution Approach 1:
The polyhedral antenna structure performs multiple functions simultaneously: it receives electromagnetic signals from all directions, eliminates the need for orientation optimization, and adapts to any configuration of the monitored electronic system. Each surface of the polyhedron acts as an independent receiving element, making the antenna universally applicable to various system orientations and configurations.
3Adaptability or versatility
If multiple receiving surfaces are used to eliminate orientation dependence, then adaptability improves, but device complexity increases
Solution Approach 1:
Multiple receiving surfaces are merged into a single polyhedral antenna structure, combining the functionality of multiple directional antennas into one integrated device. The regular polyhedron geometry provides structural symmetry that simplifies the overall design while achieving orientation independence through the coordinated operation of all surfaces.
Solution Approach 2:
The antenna uses identical receiving surfaces arranged symmetrically in a regular polyhedron, ensuring uniform signal reception characteristics from all directions. This homogeneity in surface design and arrangement simplifies the system while achieving the goal of orientation independence, as each surface contributes equally to the overall signal capture.
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
This approach enables thorough characterization of electronic systems by reducing orientation-based sensitivity, facilitating the detection of faults like counterfeit components and metal whiskers, and ensuring the integrity of monitored systems through comprehensive signal analysis.
Implementation Method 1
a near-isotropic antenna that includes a set of receiving surfaces arranged in a regular polyhedron
Data Source
AI summary
One embodiment provides a system that analyzes a target electromagnetic signal radiating from a monitored system. During operation, the system monitors the target electromagnetic signal using a near-isotropic antenna that includes a set of receiving surfaces arranged in a regular polyhedron. Next, the system obtains a set of received target electromagnetic signals from the receiving surfaces. Finally, the system assesses the integrity of the monitored system by separately analyzing each of the received target electromagnetic signals.