Multi-Band Vehicle Antenna Layout for 5G, Wi-Fi 6E, and V2X
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Solution Overview
Problem
Current vehicle antennas, typically designed for 4G frequencies, fail to meet the multi-frequency communication needs of modern vehicles, including 5G, Wi-Fi, and V2X, due to limited space and inadequate coverage for integrated data transmission.
Innovation Solution
A multi-frequency range vehicle antenna system comprising a dielectric substrate with three antennas (2G/3G/5G, Wi-Fi 6E, and V2X compatible) arranged in parallel, using a monopole and planar inverted-F antenna designs, integrated with a positioning module for comprehensive signal coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single 4G antenna is installed in the vehicle, then the device complexity is reduced and installation is simplified, but the adaptability to support multiple frequency ranges (5G, Wi-Fi, V2X) is insufficient
Solution Approach 1:
The patent combines multiple antenna types (5G wideband antenna, Wi-Fi antenna, and V2X antenna) into a single integrated antenna assembly mounted on the vehicle. This merging approach allows the system to support multiple frequency ranges and communication standards while maintaining a unified installation structure, thus improving adaptability without proportionally increasing device complexity.
Solution Approach 2:
The antenna system is designed with multi-functionality to perform multiple communication functions simultaneously. The 5G wideband antenna handles both 5G and 4G communications, while additional elements provide Wi-Fi and V2X capabilities. This universal design allows a single antenna assembly to replace what would traditionally require multiple separate antennas, improving frequency range coverage while controlling complexity.
2Reliability
If multiple separate antennas are installed to cover all frequency ranges, then the adaptability and signal coverage are improved, but the device complexity and installation difficulty increase
Solution Approach 1:
Multiple antenna functions are merged into a single integrated assembly that can be installed in one location on the vehicle. The assembly includes a 5G wideband antenna element, Wi-Fi antenna element, and V2X antenna element that work together to provide comprehensive signal coverage across all required frequency ranges, thereby improving reliability without requiring multiple separate antenna installations.
Solution Approach 2:
The patent utilizes vertical spacing and three-dimensional arrangement of antenna elements within the assembly to achieve frequency separation and reduce interference. By arranging antennas at different heights and orientations in the vertical dimension, the system achieves improved signal coverage and reliability while maintaining a compact integrated structure that does not excessively increase device complexity.
3Adaptability or versatility
If traditional single-frequency antennas are used, then the manufacturing cost is lower, but the adaptability to modern multi-frequency communication standards is insufficient
Solution Approach 1:
The antenna system incorporates universal design elements that enable support for multiple frequency bands and communication standards. The 5G wideband antenna is designed to operate across broad frequency ranges covering both 5G and 4G bands, while additional integrated elements provide Wi-Fi and V2X capabilities. This multi-functional approach improves frequency band compatibility while maintaining reasonable manufacturing simplicity through standardized assembly processes.
Solution Approach 2:
The antenna assembly is segmented into distinct functional elements (5G wideband antenna, Wi-Fi antenna, V2X antenna) that can be manufactured separately and then assembled together. This segmentation allows each element to be optimized for its specific frequency range while maintaining ease of manufacture through modular production, and facilitates quality control and testing of individual components before final assembly.
Data Source
AI summary
A multi frequency ranges vehicle antenna able to transmit and receive over multiple frequencies including v2x includes a dielectric substrate, a first antenna, and second and third antennas. The first to third antennas are in parallel, vertically mounted, and are connected to the dielectric substrate. The first antenna is positioned between the second and third antennas. The first antenna is a 5G wideband antenna able to communicate in 2G, 3G, 4G, and 5G frequency bands, and the working frequency bands of the second and third antennas, which can work at the same time, are compatible with WiFi 6E and V2X frequency bands.