Vehicle Antenna Side Wall Lens Refraction
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Solution Overview
Problem
The existing antenna apparatuses with three-dimensional assemblage of substrates have a complicated structure, making it difficult to control directivity in various directions effectively.
Innovation Solution
An antenna apparatus with a simple configuration that includes an array antenna with antenna elements on a substrate forming beams at multiple angles, and a side wall that refracts these beams along the substrate, allowing for control of directivity in various directions, including oblique, zenith, and horizontal directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If three-dimensional assemblage of substrates is used to control directivity, then directivity control capability is improved, but device complexity increases
Solution Approach 1:
The invention extracts the directivity control function from the complex three-dimensional substrate assemblage and implements it through a simplified planar configuration with reflective surfaces and beamforming networks, thereby reducing structural complexity while maintaining directivity control capability
Solution Approach 2:
The invention transitions from three-dimensional substrate stacking to a two-dimensional planar configuration with reflective surfaces, changing the dimensional approach to achieve directivity control with simpler structure
2Adaptability or versatility
If multiple substrates are assembled three-dimensionally, then beam forming capability is improved, but manufacturing complexity increases
Solution Approach 1:
The invention merges multiple substrate functions into a single planar configuration with integrated reflective surfaces and beamforming networks, reducing the number of assembly steps while maintaining beamforming capability
Solution Approach 2:
The invention segments the beamforming function into separate planar elements (reflective surfaces, antenna elements, feeding networks) that can be manufactured independently and assembled with simpler alignment requirements
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
Enables efficient control of directivity in multiple directions with a simplified structure, enhancing communication capabilities in various scenarios such as road-to-vehicle and vehicle-to-vehicle communications while maintaining a compact design.
Implementation Method 1
a side wall that is provided in at least a part of a periphery of the at least one antenna element and that refracts a first beam in a direction along the substrate
Data Source
AI summary
Provided is an antenna device with a simple configuration and in which it is possible to control the directivity in various directions. An antenna device according to the present invention is provided with: an array antenna that includes at least one antenna element disposed on a first surface of a substrate and that forms beams in respective directions having a plurality of angles including a first angle relative to the first surface of the substrate; and a side wall that is provided on at least a partial periphery of the at least one antenna element and that refracts, in a direction along the substrate, a first beam in the direction having the first angle.