Perpendicular Electrode Layout for Compact Full-Duplex Couplers
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Solution Overview
Problem
Existing wireless communication systems using electric field coupling face interference issues when coupler pairs are close to each other, leading to communication errors and increased device size due to the need for large spacing to prevent interference.
Innovation Solution
The proposed solution involves a wireless communication apparatus with specifically arranged conductors acting as electrodes for differential signal transmission, where the coupler pairs are oriented such that their longitudinal directions are perpendicular to each other, allowing for close arrangement without significant interference, thereby reducing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If coupler pairs are arranged close to each other to reduce device size, then device size is reduced, but communication interference occurs between coupler pairs
Solution Approach 1:
The patent applies dimensionality change by rotating the second coupler pair 90 degrees relative to the first coupler pair, transitioning from a parallel arrangement to a perpendicular arrangement. This spatial reconfiguration in a different dimension (orientation angle) allows the coupler pairs to be placed closer together while minimizing electric field coupling interference, thus reducing device size without sacrificing communication reliability.
Solution Approach 2:
The patent introduces asymmetry in the arrangement of coupler pairs by setting their longitudinal directions at different angles (first coupler pair at 0 degrees, second coupler pair at 90 degrees). This asymmetric configuration breaks the symmetry of parallel arrangements, allowing closer spacing while reducing mutual interference between the coupler pairs through differential signal cancellation effects.
2Reliability
If large space is provided between coupler pairs to prevent communication interference, then communication reliability is improved, but device size increases
Solution Approach 1:
Instead of increasing spacing in the same plane, the patent moves to a different dimensional parameter (angular orientation) to solve the interference problem. By arranging coupler pairs at 90 degrees to each other, the system achieves both close physical spacing (reducing device size) and reliable communication (through reduced interference) simultaneously.
Solution Approach 2:
The patent changes the geometric parameter of coupler pair arrangement from parallel (0 degree angle) to perpendicular (90 degree angle). This parameter change fundamentally alters the electric field interaction pattern between coupler pairs, enabling closer placement while maintaining communication reliability through differential signal characteristics.
3Device complexity
If coupler pairs are arranged parallel to each other for simple structure, then structural simplicity is maintained, but electric field coupling interference occurs
Solution Approach 1:
The patent introduces controlled asymmetry in the angular arrangement of coupler pairs (0 degrees and 90 degrees) to eliminate interference. While this increases structural complexity slightly compared to parallel arrangement, it achieves the primary goal of eliminating electric field coupling interference, making the overall system more reliable and compact.
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 arrangement effectively inhibits communication interference, enabling reliable wireless full-duplex communication while minimizing the physical size of the wireless communication modules by allowing coupler pairs to be closer together.
Implementation Method 1
wireless communication of a differential signal using electric field coupling, between the wireless communication apparatus and another wireless communication apparatus
Data Source
AI summary
A wireless communication apparatus includes a first conductor and a second conductor that function as a set of electrodes for wireless communication, a third conductor and a fourth conductor that function as another set of electrodes for wireless communication. A difference between a first distance between a centroid of the first conductor and a centroid of the third conductor and a second distance between a centroid of the second conductor and the centroid of the third conductor is less than a width of the first conductor and a width of the second conductor. A third distance between the centroid of the first conductor and a centroid of the fourth conductor is longer than the first distance. A fourth distance between the centroid of the second conductor and the centroid of the fourth conductor is longer than the second distance.