Antenna Device Integrating WAVE GPS and Wi-Fi on Single Substrate
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Solution Overview
Problem
Current communication systems for vehicle-to-everything (V2X) networks face limitations in implementing wireless communication methods effectively due to the integration of multiple functions into small-scale modules, leading to reduced communication range and increased cable dependency, which affects the efficiency and safety of vehicle communication.
Innovation Solution
An antenna device integrating a WAVE antenna, GPS antenna, and Wi-Fi antenna on a single substrate with a system module that includes signal processing, control, and power supply units, minimizing cable usage through wireless communication and direct electrical connections, enabling efficient communication between vehicles, infrastructure, and mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple communication functions (Wi-Fi, WAVE, GPS) are integrated into a small-scale module, then device miniaturization is achieved, but communication range is reduced
Solution Approach 1:
The patent transitions from planar PCB mounting to three-dimensional spherical antenna structure, utilizing spatial dimensions to achieve both miniaturization and extended communication range through the spherical geometry that provides omnidirectional coverage
Solution Approach 2:
The patent combines Wi-Fi, WAVE, and GPS antenna functions into a single integrated spherical antenna module, merging multiple communication systems into one compact structure that maintains the communication range of each function
2Reliability
If RF cables are used to connect the antenna to the system, then electrical connection is established, but communication range is reduced due to cable length limitations
Solution Approach 1:
The patent replaces the mechanical RF cable connection system with a wireless communication system, eliminating the physical cable that limited communication range while maintaining reliable electrical connection through electromagnetic field transmission
Solution Approach 2:
The patent extracts and removes the RF cable from the system, eliminating the component that imposed communication range limitations while maintaining the essential electrical connection function through wireless means
3Adaptability or versatility
If multiple antennas are used to improve communication coverage, then communication bi-directionality is enhanced, but device complexity increases
Solution Approach 1:
The patent merges multiple antenna functions into a single spherical antenna structure that provides omnidirectional coverage, achieving enhanced communication bi-directionality without the complexity of multiple separate antenna systems
Solution Approach 2:
The spherical antenna is designed with universal omnidirectional characteristics that provide communication coverage in all directions simultaneously, making the system adaptable to various communication scenarios without requiring multiple specialized antennas
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
The solution enhances communication range and bi-directionality by eliminating cable length limitations, allowing for seamless communication between vehicles and infrastructure, and internal vehicle communications, while reducing wire usage and improving signal processing accuracy.
Implementation Method 1
a WAVE antenna disposed on one surface of the substrate to transmit and receive data to and from an external vehicle or a base station
Implementation Method 2
a GPS antenna disposed on one surface of the substrate
Implementation Method 3
a Wi-Fi antenna disposed on the other surface of the substrate to transmit the data that the WAVE antenna has received to a head unit and transmit data received from the head unit to the WAVE antenna
Data Source
AI summary
An antenna device includes: a substrate; a wave antenna, disposed on one surface of the substrate, for transmitting and receiving data to and from an external vehicle or a base station; a GPS antenna disposed on one surface of the substrate; a WiFi antenna, disposed on the other surface of the substrate, for transmitting, to a head unit, data that the wave antenna has received, and transmitting, to the wave antenna, data that has been received from the head unit; and a system module for receiving a signal from at least any one of the wave antenna, the GPS antenna or the WiFi antenna and controlling the same.