Integrated Vehicle Antenna Configuration for Space-Constrained Isolation
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Solution Overview
Problem
Existing vehicle antenna configurations face challenges in integrating multiple antennas within limited space while maintaining performance and aesthetic appeal, leading to high complexity and cost.
Innovation Solution
A highly integrated vehicle antenna configuration that utilizes a metal structure as a reference ground for a broadband antenna, with dielectric and metal layers, and includes multiple electrical connection structures and excitation signal sources to achieve broadband design and antenna modules, ensuring performance and isolation between antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If multiple antennas are arranged in different positions of the vehicle to achieve concealed arrangement, then the aesthetic appearance is preserved, but the complexity and cost of the antenna system increase
Solution Approach 1:
The patent combines multiple antenna functions into a single integrated antenna structure. The antenna system integrates GNSS, satellite broadcast, ETC, and multimedia communication functions within one physical antenna unit, eliminating the need for multiple separate antennas and reducing overall system complexity while maintaining aesthetic appearance.
Solution Approach 2:
The integrated antenna is designed to perform multiple functions simultaneously. It serves as a universal antenna that can handle various communication protocols and frequency bands (AM/FM/DAB for radio, GNSS for navigation, satellite broadcast for entertainment, ETC for toll collection, and multimedia for Wi-Fi/BT/3G/LTE/V2X), replacing what would traditionally require multiple specialized antennas.
2Shape
If shark fin antennas are used to improve aesthetic appearance, then the appearance is enhanced, but the performance deteriorates due to size and height limitations
Solution Approach 1:
The patent embeds multiple antenna elements and functional components within a compact integrated structure. The antenna system nests GNSS, satellite broadcast, ETC, and multimedia antenna functions within a single consolidated unit, achieving space-efficient design that maintains performance without requiring the height and surface area of traditional shark fin antennas.
Solution Approach 2:
The patent transitions from traditional three-dimensional external antenna structures to a two-dimensional planar integrated design. By flattening and consolidating antenna elements into a planar configuration, the system achieves adequate performance while dramatically reducing the height and visual profile, thus improving aesthetics without sacrificing functionality.
3Device complexity
If built-in antennas are placed inside the dashboard with limited space, then the integration is improved, but the performance and isolation between antennas deteriorate
Solution Approach 1:
The patent assigns different functional zones and frequency bands to specific regions within the integrated antenna structure. Each antenna function (GNSS, satellite broadcast, ETC, multimedia) is allocated dedicated spatial and spectral resources within the integrated unit, ensuring adequate isolation and performance for each function while maintaining compact integration.
Solution Approach 2:
The integrated antenna is segmented into distinct functional modules, each handling specific communication protocols. The antenna system divides its structure into separate elements for different frequency bands and functions, with proper isolation between segments, allowing high-level integration while preserving individual performance characteristics.
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
This configuration allows for multiple broadband antennas to be integrated in a single space, improving integration, reducing complexity and cost, and enhancing the vehicle antenna system's performance and ease of implementation.
Implementation Method 1
the first excitation signal source excites an inherent resonant mode of the metal structure and the broadband antenna, to achieve a broadband design
Data Source
AI summary
The present disclosure provides a highly-integrated vehicle antenna configuration, which includes: a metal structure as a reference ground for a broadband antenna; a broadband antenna; a first electrical connection structure electrically connected to the metal structure and the broadband antenna; a first excitation signal source loaded between the metal structure and the broadband antenna, wherein by exciting some resonance modes of the metal structure and the broadband antenna, the broadband design is realized; and an antenna module located on the broadband antenna, wherein the broadband antenna is used as an antenna radiator and/or reference ground of the antenna module. Multiple broadband antennas are realized by using only the space occupied by one broadband antenna, and other antennas are built on the broadband antenna at the same time, which maintains a good isolation between all antennas while ensuring the performance of the broadband antenna.