RF Antenna Array with Varied Parameters to Reduce Scattering

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Solution Overview

Problem

RF receiver systems face challenges in reducing scattering, reflection, and re-radiation of incident RF energy, which affects the efficiency of RF energy processing and power generation from received RF signals.

Innovation Solution

An array of RF antennas with varying configuration parameters and a non-linear RF receiver with varying non-linear component parameters are used to minimize the scattering, reflection, and re-radiation of RF energy by increasing destructive interference and decreasing constructive interference between scattered, reflected, and re-radiated waves.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If an array of RF antennas is used to receive incident RF energy, then the received RF energy can be processed by a non-linear RF receiver, but scattering, reflection, and re-radiation of incident RF energy occur reducing processing efficiency

Engineering Contradiction:
ImproveRF energy processing efficiencyVSAvoidRF energy scattered, reflected, or re-radiated
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies local quality by varying configuration parameters (such as element spacing, orientation, or impedance) across different antennas in the array. This creates local variations in the scattering characteristics of each antenna element, which when combined through destructive interference, reduces the total scattered, reflected, and re-radiated RF energy while maintaining effective signal reception.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs asymmetry by introducing non-uniform configuration parameters across the antenna array elements. Instead of identical symmetric arrangements, the elements are deliberately configured with varying parameters that create asymmetric scattering patterns, enabling destructive interference of unwanted RF energy while preserving the desired signal reception capability.

Inventive Principle:
Principle #4Asymmetry

2Loss of energy

If configuration parameters of the antenna array are varied to reduce scattering and re-radiation, then RF energy loss is reduced, but the device complexity increases

Engineering Contradiction:
ImproveRF energy scattered, reflected, or re-radiatedVSAvoidAntenna array configuration complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent implements parameter changes by systematically varying configuration parameters (such as element spacing, orientation angles, or impedance values) across the antenna array. These controlled parameter variations are designed to transform the scattering characteristics of individual elements, creating destructive interference patterns that reduce overall RF energy loss while maintaining manageable system complexity through methodical parameter optimization.

Inventive Principle:
Principle #35Parameter changes

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 effectively reduces the total amount of RF energy scattered, reflected, and re-radiated, improving the efficiency of RF energy processing and power generation in RF receiver systems.

Implementation Method 1

minimize the scattering, reflection, and re-radiation of RF energy by increasing destructive interference and decreasing constructive interference between scattered, reflected, and re-radiated waves

Methodology Applied
Scientific EffectDestructive interference: Interference

Data Source

PatentUS10530194B2System and methods for reducing scattering, reflection or re-radiation of received RF energy
Publication Date: 2020.01.07 THE INVENTION SCIENCE FUND 1 LLC
  • US10530194B2 patent drawing
  • US10530194B2 patent drawing
  • US10530194B2 patent drawing

AI summary

According to various embodiments, a non-linear RF receiver including non-linear components is configured to receive RF energy. The non-linear RF receiver is coupled to an array of RF antennas having configuration parameters that vary across the array. The varied configuration parameters can be selected to reduce an amount of RF energy that is scatter, reflected, or re-radiated by the array in response to incident RF energy at the array of RF antennas. In various embodiments, the non-linear components of the non-linear RF receiver can have non-linear component configuration parameters that vary across the non-linear receiver. The varied non-linear component parameters can be selected to reduce an amount of RF energy that is re-radiated in response to incident RF energy.