Vehicle UWB Switching Antenna for Selectable Radiation Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current UWB antennas for vehicles require separate omnidirectional and directional modules due to their distinct characteristics, leading to inefficiencies in positioning and passenger detection within a vehicle.
Innovation Solution
A switching antenna design that incorporates a substrate with a radiation part, main ground part, side ground parts, and a selection signal part, allowing for the selective connection or separation of these components to switch between omnidirectional and directional radiation patterns, enabling both positioning and passenger detection using a single module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate omnidirectional and directional antennas are used for positioning and passenger detection, then both functions can be performed, but device complexity increases
Solution Approach 1:
The patent combines both omnidirectional and directional antenna functions into a single antenna structure. The antenna includes a radiation element and multiple ground elements (first ground element, second ground element, third ground element) that can be selectively connected to transform the radiation pattern between omnidirectional and directional modes, eliminating the need for separate antenna modules
Solution Approach 2:
The patent implements dynamic switching capability where the antenna radiation pattern can be changed from omnidirectional to directional and vice versa through control signals. This is achieved by selectively connecting or disconnecting ground elements based on the required function (positioning vs. passenger detection), allowing the single antenna to adapt to different operational 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 switching between omnidirectional and directional radiation signals, facilitating both passenger detection and positioning within a vehicle without the need for separate modules, enhancing operational flexibility and reducing manufacturing complexities.
Implementation Method 1
a radiation part on the substrate part and configured to radiate an omnidirectional pattern signal
Data Source
AI summary
The present disclosure relates to a switching antenna for UWB communication for a vehicle. The switching antenna may include a substrate part, a radiation part formed in the substrate part and configured to radiate an omnidirectional pattern signal, a main ground part formed in the substrate part and disposed below the radiation part, side ground parts formed on the substrate part and disposed on both sides of the radiation part, and a selection signal part formed in the substrate part and configured to induce a radiation pattern of the radiation part to become either directional or omnidirectional by selectively connecting the main ground part and the side ground part.