Multi-Mode Magnetic Induction Antenna for Proximity Confinement
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Solution Overview
Problem
Current wireless communication technologies lack the ability to confine communications to a defined area, leading to security concerns and limited application in certain scenarios due to the wide range of detection, even for low-power short-range standards.
Innovation Solution
The use of Multi-Mode Magnetic Induction Communication (MMMIC) devices with multiple orthogonal antennas enables efficient communication within a well-defined proximity boundary by maximizing signal reception and transmission alignment, reducing power consumption and increasing the reliability of near-field magnetic induction signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless communication standards are used with wide detection range, then communication coverage is improved, but security and confinement to defined area deteriorates
Solution Approach 1:
The patent transitions from 2D planar antenna arrangements to 3D tetrahedral geometry, adding spatial dimensionality to achieve directional beamforming. This dimensional change enables the system to concentrate energy in specific three-dimensional directions while maintaining wide overall coverage, resolving the contradiction between coverage area and security/confinement.
Solution Approach 2:
The patent divides the omnidirectional communication space into multiple directional sectors using four antennas positioned at tetrahedral vertices. Each antenna contributes to specific directional coverage, segmenting the overall radiation pattern to achieve both wide coverage and localized confinement simultaneously through constructive and destructive interference patterns.
2Device complexity
If single antenna is used for magnetic induction communication, then device complexity is reduced, but signal reception reliability deteriorates due to alignment issues
Solution Approach 1:
The patent moves from 2D coplanar antenna arrangements to 3D tetrahedral configuration, where antennas are positioned at vertices of a tetrahedron. This three-dimensional arrangement ensures that at least one antenna pair maintains optimal alignment regardless of the relative orientation between transmitting and receiving devices, significantly improving signal reception reliability.
Solution Approach 2:
The patent combines multiple antenna signals through coherent integration, merging the contributions of four antennas positioned in tetrahedral geometry. This combining approach creates a unified radiation pattern that maintains consistent signal strength across various orientations, overcoming the limitations of single-antenna systems.
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 confines wireless communication to a small, predictable area, enhancing security and enabling diverse applications such as proximity-based marketing and social networking by ensuring consistent signal reception independent of antenna alignment.
Implementation Method 1
communicate through near-field magnetic induction over a selected distance
Implementation Method 2
maximizing signal reception and transmission alignment
Data Source
AI summary
A system and method for proximity based social networking is disclosed between mobile computing devices each having a short range communication (SRC) device using near field magnetic induction. The SRC devices can include at least two antennas to provide magnetic induction diversity. The method comprises defining a proximity boundary with dimensions defined by a communication range of the SRC devices. A proximity signal is communicated in the proximity boundary between the SRC devices. Information can be exchanged between the mobile computing devices based on the settings of a social networking filter module.