Integrated Vehicle Antenna Assembly for 5G Millimeter-Wave Coverage
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Solution Overview
Problem
Motor vehicles face challenges with signal interference and inadequate communication coverage due to the increasing number of antennas required for various frequency bands, particularly with the introduction of 5G millimeter-wave frequencies, which complicates space constraints and costs.
Innovation Solution
A compact antenna design featuring a mounting base, cover, and multiple radiating elements, including waveguides configured for millimeter-wave signals, which are housed in a conductive housing space, allowing for efficient signal transmission and reception while minimizing space and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are installed in different positions to improve coverage and signal quality, then communication coverage and signal quality are improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple radiating elements (dipole antennas and waveguides) into a single integrated antenna assembly. This merging approach allows multiple functions (handling different frequency bands including millimeter-wave and sub-6GHz) to be achieved within one structural unit, thereby improving signal quality and coverage without increasing the number of separate antenna installations on the vehicle.
Solution Approach 2:
The patent employs a nested structure where radiating elements are positioned within a housing that is mounted on the vehicle body. The dipole antennas and waveguides are arranged in a compact configuration within the available space, allowing efficient use of the mounting area while maintaining effective radiation patterns for multiple frequency bands.
2Adaptability or versatility
If multiple antennas are installed to handle different frequency bands including 5G millimeter-wave, then frequency band coverage is improved, but manufacturing costs increase
Solution Approach 1:
The antenna assembly is designed with multi-functionality to handle multiple frequency bands (millimeter-wave, sub-6GHz, and other conventional bands) using a single integrated structure. The combination of waveguides for millimeter-wave and dipole antennas for other bands within one assembly reduces the total number of components needed, simplifying manufacturing and reducing costs compared to installing separate specialized antennas for each frequency band.
3Reliability
If multiple antennas are installed for 5G millimeter-wave frequencies, then millimeter-wave signal coverage is improved, but available mounting space is consumed
Solution Approach 1:
The patent merges millimeter-wave waveguides with conventional dipole antennas into a single integrated assembly, allowing both millimeter-wave and other frequency bands to be handled from one mounting location. This consolidation significantly reduces the mounting space required compared to installing separate millimeter-wave antennas at multiple locations, while still providing effective millimeter-wave signal coverage.
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 antenna provides effective coverage for millimeter-wave signals and other frequency bands, reducing interference and improving communication quality without the need for multiple antennas, while being cost-effective and space-efficient.
Implementation Method 1
a group of waveguides configured to transceive millimeter-wave signals
Implementation Method 2
a plurality of radiating elements suitable for transceiving signals
Data Source
AI summary
An antenna for a motor vehicle, comprising: a mounting base made of electrically conductive material and suitable for being connected to a mounting surface of the motor vehicle; a cover suitable for being connected to and delimit, together with the mounting base, a housing space; a plurality of radiating elements suitable for transceiving signals and being housed, at least partially, in the housing space. The plurality of radiating elements comprises a group of waveguides configured to transceive millimeter-wave signals.