Waveguide Radiation Suppression via Surface Current Control
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Solution Overview
Problem
The increasing demand for higher bandwidth in wireless infrastructure due to ubiquitous portable devices and reliance on broadband services poses challenges in reducing radiation from external surfaces of structures, particularly in the context of small cell deployment and power grid communication systems.
Innovation Solution
A guided wave communication system that utilizes electromagnetic waves bound to transmission media such as wires or dielectric materials, allowing for propagation without an electrical return path, and employs couplers and repeaters to manage and reduce radiation by inducing guided waves on the surface of transmission media like power lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electromagnetic waves are propagated through free space for wireless communication, then bandwidth capability is improved, but radiation from external surfaces increases causing electromagnetic interference
Solution Approach 1:
The patent uses transmission media (wires, cables, or other conductive structures) as intermediaries to guide electromagnetic waves between communication nodes. Instead of allowing waves to propagate freely through space, the transmission media confine and direct the electromagnetic energy, providing the bandwidth capability of wireless communication while eliminating harmful radiation into the surrounding environment.
Solution Approach 2:
The patent employs shielding structures and protective coverings around transmission media to contain electromagnetic fields. These flexible or rigid enclosures act as barriers that prevent electromagnetic radiation from escaping the transmission path, thereby reducing electromagnetic interference while maintaining communication effectiveness.
2Productivity
If small cell deployment is pursued to provide additional mobile bandwidth, then bandwidth capability is improved, but electromagnetic interference from multiple structures increases
Solution Approach 1:
The patent divides the communication system into multiple small cell nodes, each handling a portion of the total bandwidth requirement. By segmenting the network into distributed small cells with localized transmission media, the system achieves high aggregate bandwidth while each individual node produces limited electromagnetic interference that remains confined to its immediate vicinity.
Solution Approach 2:
Each small cell node uses transmission media as intermediaries to guide electromagnetic waves locally, preventing interference from propagating between neighboring small cells. This mediation through physical transmission paths allows dense deployment of small cells to achieve high bandwidth without cumulative electromagnetic interference problems.
3Object-generated harmful factors
If guided waves are induced on transmission media to reduce radiation, then electromagnetic interference is reduced, but device complexity increases due to need for couplers and repeaters
Solution Approach 1:
The patent designs transmission media and coupling devices that serve multiple functions simultaneously. Transmission media not only guide electromagnetic waves but also provide structural support, electrical isolation, and mechanical protection. Couplers and repeaters are designed to perform signal coupling, amplification, and impedance matching in integrated units, reducing the number of separate components needed and simplifying the overall 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
This approach enables efficient data transmission with reduced radiation and increased bandwidth capabilities, supporting the integration of small cell networks and power grid communications while minimizing electromagnetic interference.
Implementation Method 1
A waveguide system includes a structure configured to guide propagation of waves and a suppressor positioned on an outer surface of the structure, wherein the suppressor reduces a flow of an electrical current from an inner surface to the outer surface of the structure
Implementation Method 2
a suppressor positioned on an outer surface of the structure, wherein the suppressor reduces a flow of an electrical current from an inner surface to the outer surface of the structure
Data Source
AI summary
Aspects of the subject disclosure may include, a system that guides electromagnetic waves that propagate along a transmission medium without requiring an electrical return path, and at least reduces radiation on an outer surface of a structure reducing a flow of an electrical current from an inner surface of the structure to the outer surface of the structure. Other embodiments are disclosed.