Wavelength-Switched V2X Antenna for Adaptive Beam Patterns
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Solution Overview
Problem
Existing V2X antennas in autonomous vehicles have omni-directional characteristics, which are not optimal for different communication scenarios like V2I, V2V, and V2N, and beamforming solutions are complex, power-intensive, and space-consuming.
Innovation Solution
Implementing a wavelength-based V2X antenna system that uses multiple antennas configured at different wavelengths to optimize beam patterns for various V2X communication scenarios, allowing for adaptive wavelength control to match specific communication types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used to achieve precise beam patterns for different V2X communication scenarios, then communication performance is improved, but device complexity increases due to requiring many antennas and complex controller structure
Solution Approach 1:
The patent changes the operational parameters of a single antenna by dynamically adjusting its impedance through switching between different capacitor configurations. This allows the antenna to adapt its radiation pattern for different V2X scenarios (V2V, V2I, V2P) without requiring multiple antennas or complex beamforming controllers, thus improving communication performance while maintaining simple device structure
2Reliability
If beamforming is used to achieve precise beam patterns, then communication performance is improved, but power consumption increases due to complex structure
Solution Approach 1:
The patent achieves adaptive beam patterns by changing the antenna's electrical parameters (impedance) through a simple switching mechanism between capacitor configurations. This approach consumes significantly less power compared to beamforming systems that require multiple active antennas and complex controllers, while still providing optimized communication performance for different V2X scenarios
3Reliability
If beamforming is used to achieve precise beam patterns, then communication performance is improved, but space requirements increase due to requiring many antennas
Solution Approach 1:
The patent makes a single antenna universal by enabling it to perform multiple functions - adapting its radiation pattern to suit different V2X communication scenarios (V2V, V2I, V2P) through impedance switching. This eliminates the need for multiple specialized antennas, reducing space requirements while maintaining optimized communication performance across all scenarios
4Adaptability or versatility
If omni-directional antenna is used for V2X communication, then communication coverage is maintained, but signal quality deteriorates for specific communication scenarios
Solution Approach 1:
The patent transforms the static omni-directional antenna into a dynamic one that can change its radiation pattern characteristics. By switching between different capacitor configurations, the antenna dynamically adapts its impedance and radiation pattern to match the requirements of different V2X scenarios, thereby maintaining broad coverage while improving signal quality for specific communication directions
Data Source
AI summary
Provided are wavelength based V2X antennas, and related antenna systems and method, which can include a first antenna having a first wavelength and a second antenna having a second antenna. Some antenna systems control a wavelength of a signal for transmission using one of the first antenna and the second antenna.