Levitated Particle Antenna for Miniaturized Weak-Signal Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges with large antenna volumes and low reception sensitivity, particularly in low-frequency bands, limiting their practical applicability and efficiency.
Innovation Solution
A method and device utilizing a levitated particle as an antenna for wireless communication, involving a levitation trapper, charge measure-regulator, electromagnetic response calibrator, and communication signal detect-demodulator to achieve signal reception and demodulation, with prior calibration of electromagnetic response characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If antenna size is reduced to achieve miniaturization, then device volume decreases, but reception sensitivity deteriorates
Solution Approach 1:
The patent replaces the traditional mechanical antenna structure with a levitated particle system. The particle, trapped by optical tweezers, serves as the receiving element instead of a conventional antenna. This substitution enables miniaturization while maintaining or improving reception sensitivity through the particle's resonant response to electromagnetic fields.
Solution Approach 2:
The patent changes the physical state and parameters of the receiving element by using a charged levitated particle instead of a solid antenna structure. The particle's mass, charge, and position can be precisely controlled and tuned to optimize the resonant frequency and reception characteristics, allowing sensitivity to be maintained at much smaller scales.
2Productivity
If antenna spacing is increased to achieve optimal switching efficiency, then transmission-reception efficiency improves, but system area increases
Solution Approach 1:
The patent replaces mechanical antenna elements with levitated particles that can be positioned and moved without physical constraints. This allows multiple particles to operate in a compact space while maintaining optimal spacing for switching operations, as the particles can be precisely controlled in three-dimensional space.
Solution Approach 2:
The patent transitions from two-dimensional planar antenna arrangements to three-dimensional spatial configuration of levitated particles. Particles can be positioned at optimal distances from each other in three-dimensional space, achieving efficient switching without increasing the footprint area of the system.
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 levitated particle-based system achieves miniaturization and significantly enhances reception sensitivity, enabling communication with weaker signals across a broad frequency band.
Implementation Method 1
The vacuum optical tweezers system is an optical mechanical system with an ultrahigh position detection sensitivity, which can trap and manipulate a levitated particle in a non-mechanical contact manner.
Implementation Method 2
After the net charge quantity carried by the particle is regulated, the particle can be driven by applying electromagnetic communication signals to the vacuum optical tweezers system. In other words, with the applied electromagnetic communication signals, the motion state of the levitated particle can have a corresponding change.
Data Source
AI summary
The present disclosure provides a method and device for performing signal communication based on a levitated particle. In one example, the method includes: preparing a levitated state of the particle; regulating and measuring a net charge quantity carried by the levitated particle; calibrating electromagnetic response characteristics of the levitated particle; applying an electromagnetic communication signal; obtaining and demodulating the electromagnetic communication signal. In an example, the device includes: a levitation trapper; a charge measure-regulator; an electromagnetic response calibrator, configured to obtain, in advance, a background noise and an electromagnetic response transfer function of the levitated particle; a communication signal detect-demodulator, configured to detect a motion response of the levitated particle under an electromagnetic communication signal; based on the background noise and the electromagnetic response transfer function of the levitated particle, recover the applied electromagnetic communication signal from the detected motion response, and demodulate symbols of the electromagnetic communication signal.