Antenna Directivity via Inside Member Openings
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Solution Overview
Problem
Downsizing and reducing the height of a housing in a communication system hinders wireless communication due to the narrowing of the gap between the antenna opening surface and internal components, making radio wave propagation difficult.
Innovation Solution
Incorporating an inside member with openings that act as a pseudo waveguide space, allowing the antenna to have directivity towards these openings, which facilitates radio wave propagation between management and edge devices, even in a compact housing configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the housing is downsized and height is reduced, then the housing size is improved, but wireless communication becomes difficult due to narrowed gap between antenna opening surface and internal components
Solution Approach 1:
The patent introduces a pseudo waveguide space formed by an inside member with openings, creating a new spatial dimension for radio wave propagation. This allows the antenna to communicate through the openings in the inside member, bypassing the limitation of the narrowed vertical gap caused by housing downsizing.
Solution Approach 2:
The inside member with openings acts as an intermediary structure that facilitates radio wave transmission. The openings in the inside member serve as transmission channels, mediating the communication between the antenna and the external environment without requiring a large vertical gap.
2Length of stationary object
If the gap between antenna opening surface and internal components is narrowed, then the housing height is reduced, but radio wave propagation becomes difficult
Solution Approach 1:
The patent creates a pseudo waveguide space by utilizing the openings in the inside member, transforming the propagation path from a vertical gap-dependent route to a route through the openings. This dimensional change allows radio waves to propagate effectively even when the vertical gap is minimized.
Solution Approach 2:
The patent changes the propagation parameters by creating a pseudo waveguide structure with specific opening dimensions and positions. This structural parameter change enables effective radio wave transmission at reduced housing heights by optimizing the transmission path through the inside member openings.
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 configuration enhances wireless communication success probability by enabling reliable radio wave propagation between management and edge devices, even in a housing with reduced height, while maintaining the low profile and structural integrity.
Implementation Method 1
In a housing 200 with reduced height, it is possible to perform wireless communication with a higher success probability by forming a pseudo waveguide space with an inside member 80
Data Source
AI summary
A communication system in a housing including a first communication device and a second communication device has, in at least one of the first communication device and the second communication device, an antenna structure installed at a position between a device arrangement surface and a specific surface. The housing has an inside member arranged substantially in parallel with a battery arrangement surface at a position at least one of above and below the antenna structure. The inside member has, formed thereon, at least one opening that opens in a vertical direction. The at least one of the first communication device and the second communication device serving as a specific communication device include an antenna having directivity set in a predetermined direction range including at least a direction in which the opening of the inside member is located.