Communication Coupler Noise Suppression via High Impedance
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Solution Overview
Problem
Communication systems experience noise emission due to signal current dissipation outside the coupler case, exceeding electric field strength regulations, particularly in GHz frequency regions, where existing technologies lack a noise suppression structure.
Innovation Solution
A communication system with a noise suppressing section on the lower end surface of the coupler case, creating a high impedance to prevent current flow to the outside, utilizing grooves or magnetic substances to increase impedance and reduce noise emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication signals are transmitted through the coupler case to the signal transmitting apparatus, then communication functionality is achieved, but noise is emitted outside the coupler case due to signal current dissipation
Solution Approach 1:
The coupler case is segmented into multiple regions: a signal transmission region that allows electromagnetic coupling with the signal transmitting apparatus, and a noise suppression region with high impedance that prevents signal current from dissipating outside. This segmentation enables the coupler case to simultaneously achieve communication functionality and noise reduction by directing current flow through specific pathways.
Solution Approach 2:
Different regions of the coupler case are assigned different electrical properties: the signal transmission region has low impedance to facilitate current flow and electromagnetic coupling, while the noise suppression region has high impedance to block current dissipation. This local differentiation of electrical properties allows the structure to perform multiple functions - enabling communication while suppressing noise emission to comply with electric field strength regulations.
2Use of energy by moving object
If the coupler case is made conductive to facilitate signal transmission, then signal transmission efficiency is improved, but electric field strength regulations are exceeded due to noise emission
Solution Approach 1:
The coupler case is divided into conductive regions for signal transmission and high-impedance regions for noise suppression. The conductive regions maintain good electrical contact with the signal transmitting apparatus to ensure efficient signal transmission, while the high-impedance regions prevent signal current from leaking outside, thereby controlling electric field strength to comply with regulations.
Solution Approach 2:
The coupler case exhibits spatially varying electrical conductivity: highly conductive areas facilitate efficient signal transmission by allowing current flow, while high-impedance areas restrict current flow to prevent noise emission. This local quality differentiation resolves the contradiction between transmission efficiency and regulatory compliance by confining current pathways to specific regions.
3Object-generated harmful factors
If a noise suppressing section is added to the coupler case, then noise emission is reduced, but device complexity increases
Solution Approach 1:
The noise suppressing section is merged with the coupler case structure itself rather than being added as a separate external component. The high-impedance regions are integrated into the coupler case body, combining the signal transmission function and noise suppression function into a single unified structure. This integration minimizes additional complexity while achieving noise reduction.
Solution Approach 2:
The coupler case is designed to perform multiple functions simultaneously: it serves as both the signal transmission interface and the noise suppression structure. The same physical structure that provides electromagnetic coupling also incorporates high-impedance regions for noise control, eliminating the need for separate noise suppression components and reducing overall device complexity.
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 solution effectively reduces noise emission by minimizing current flow to the outside, ensuring compliance with electric field strength regulations and enhancing communication system performance.
Implementation Method 1
a noise suppressing section 42 that suppresses noise by creating a high impedance
Implementation Method 2
communication or power transfer between desired points on a two-dimensional signal transmitting apparatus is realized by using electromagnetic coupling of a local electromagnetic field
Data Source
AI summary
A communication system of the present invention includes: a communication coupler that transmits a signal; and a signal transmitting apparatus that communicates by propagating, as an electromagnetic field, the signal transmitted from the communication coupler, the communication coupler includes a coupler case disposed on the signal transmitting apparatus, a noise suppressing section is provided on a lower end surface of the coupler case, the lower end surface faces the signal transmitting apparatus, and the noise suppressing section suppresses noise by creating a high impedance.