Memristive Magnetoelectric Antenna for Low-Noise Signal Processing
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Solution Overview
Problem
Existing antennas in wireless communication systems suffer from high noise, signal degradation, and propagation delay due to the need for additional modules like ADC converters and DSPs, which increase cost and reduce signal-to-noise ratio.
Innovation Solution
An antenna comprising a magnetostrictive and piezoelectric layer with a memristive material that directly converts electromagnetic signals into mechanical strain and voltage, enabling intrinsic signal processing and memory capabilities, allowing faster information extraction without additional processing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If additional processing modules (ADC converter, memory, DSP) are used to process signals, then signal processing capability is improved, but noise increases and signal-to-noise ratio deteriorates
Solution Approach 1:
The patent extracts the signal processing function from separate processing modules and integrates it directly into the antenna element itself. The antenna element is designed to perform both sensing and computation functions, eliminating the need for external ADC converters, memory, and DSP modules that introduce noise. This extraction of processing capability to the sensor level resolves the contradiction by maintaining automation while removing noise-generating components.
Solution Approach 2:
The patent merges the antenna's sensing function with computation functions by integrating a memristor-based memory element directly with the antenna structure. This combination allows the antenna to perform signal processing locally without requiring separate processing modules, thereby improving signal processing capability while avoiding the noise introduced by additional external modules.
2Extent of automation
If additional processing modules are included in the signal path, then signal processing is enhanced, but propagation delay increases
Solution Approach 1:
The patent extracts the computation function from remote processing modules and places it directly at the antenna element. By integrating the memristor-based memory and processing capability into the antenna itself, the signal does not need to travel through multiple external modules, thereby reducing propagation delay while maintaining enhanced signal processing capability.
Solution Approach 2:
The memristor-based memory element is pre-configured with threshold values and processing logic before signal reception. This preliminary configuration allows the antenna to immediately process and evaluate incoming signals against pre-set criteria without requiring time-consuming external processing, thereby reducing propagation delay while maintaining processing capability.
3Extent of automation
If multiple processing modules are used, then signal processing capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple functions (antenna, memory, signal processing) into a single integrated element. The antenna element incorporates a memristor-based memory component that provides both storage and computation capabilities, eliminating the need for separate ADC converters, memory modules, and DSP units. This merging reduces device complexity and the number of components while maintaining processing capability.
Solution Approach 2:
The antenna element is designed as a multi-functional device that simultaneously performs sensing, memory storage, and computation functions. The memristor-based memory element serves multiple purposes including signal processing, pattern recognition, and data storage, replacing multiple specialized modules with a single universal element, thereby reducing complexity.
4Extent of automation
If multiple processing modules are used, then signal processing capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges antenna and memory processing functions into a single integrated element, reducing the total number of components that need to be manufactured and assembled. By combining multiple functions into one element, the patent reduces manufacturing complexity and material costs associated with producing separate ADC converters, memory chips, and DSP modules.
Solution Approach 2:
The patent utilizes the inherent electrical properties of memristive materials to achieve signal processing functionality without requiring complex circuitry. By changing the resistance state of the memristor material through applied voltage or current, the system achieves computation capabilities using simple material property changes rather than complex electronic components, thereby reducing manufacturing cost.
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 antenna reduces noise and propagation delay by processing signals directly, eliminating the need for additional processing units and reducing manufacturing costs through the use of readily available materials like annealed aluminium nitride.
Implementation Method 1
a magnetostrictive layer configured to, in receive mode, convert a magnetic field of a detected electromagnetic wave into mechanical strain
Implementation Method 2
a piezoelectric layer configured to, in receive mode, receive the strain from the magnetostrictive layer and produce a voltage output based thereon
Implementation Method 3
In transmit mode, the piezoelectric layer may be configured to receive a voltage input and produce mechanical strain based thereon
Implementation Method 4
the magnetostrictive layer may be configured to receive the mechanical strain produced by the piezoelectric layer to produce and output an electromagnetic wave based thereon
Data Source
AI summary
An antenna is provided. The antenna may comprise a magnetostrictive layer configured to, in receive mode, convert a magnetic field of a detected electromagnetic wave into mechanical strain, and a piezoelectric layer configured to, in receive mode, receive the mechanical strain from the magnetostrictive layer and produce a voltage output based thereon. The piezoelectric layer may comprise a memristive material.