Multi-Plane Multi-Band Antenna for 5G Bandwidth Limits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stacked patch antennas fail to meet the bandwidth requirements of 5G mobile telecommunication standards and have a low bandwidth-to-volume ratio, making them unsuitable for modern electronic devices with stringent size constraints.
Innovation Solution
A compact multi-band antenna design featuring multiple radiators on different planes with overlapping regions, strategically integrated slit-slots, and parasitic components to enhance bandwidth and signal isolation, allowing for efficient operation across multiple frequency bands while maintaining a high bandwidth-to-volume ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stacked patch antennas are used to support two bands, then the antenna can operate in multiple frequency bands, but the bandwidth requirements of 5G mobile telecommunication standards are not met and the bandwidth-to-volume ratio is low
Solution Approach 1:
The antenna is divided into multiple independent radiators (first, second, third, and fourth radiators) that can be independently designed and optimized for different frequency bands. Each radiator is fed by a separate feeding component, allowing independent impedance matching and bandwidth optimization for each band, thereby meeting the stringent 5G bandwidth requirements while maintaining multi-band operation capability
Solution Approach 2:
The patent transitions from conventional planar stacked patch antennas to a three-dimensional configuration where radiators are arranged on different planes and at different heights. The fourth radiator is positioned at a different height than the first three radiators, creating a vertical dimension that enables additional resonance modes and frequency bands while improving bandwidth performance without increasing the horizontal footprint
2Device complexity
If conventional stacked patch antennas are used, then the antenna structure is simple, but the bandwidth-to-volume ratio is low making it unsuitable for modern electronic devices with stringent size constraints
Solution Approach 1:
By utilizing the vertical dimension with radiators positioned at different heights on multiple planes, the antenna achieves enhanced bandwidth performance within a compact horizontal footprint. This 3D configuration allows the antenna to meet 5G bandwidth requirements while maintaining a small overall volume suitable for modern electronic devices
Solution Approach 2:
The antenna structure employs a nested arrangement where the fourth radiator is positioned at a different height and partially overlaps with the first three radiators. This nested configuration allows multiple radiators to occupy overlapping horizontal spaces at different vertical levels, maximizing the bandwidth-to-volume ratio by efficiently utilizing the available three-dimensional space
3Adaptability or versatility
If multiple radiators are used to achieve multi-band operation, then the frequency range is extended, but the signal isolation between different polarizations may be compromised
Solution Approach 1:
The antenna employs asymmetric positioning of the fourth radiator at a different height than the first three radiators, creating distinct spatial relationships between radiators supporting different polarizations. This asymmetric 3D configuration enhances signal isolation between horizontal and vertical polarizations while maintaining extended frequency range coverage for 5G operations
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 design achieves effective multi-band and multi-polarization communication capabilities within a compact size, supporting 5G standards with improved signal isolation and extended frequency range, making it suitable for portable devices.
Implementation Method 1
each radiator contributes to resonances at two or more non-overlapping bands
Data Source
AI summary
An antenna for multi-band communication includes a plurality of radiators which are physically separated from each other. Each radiator is disposed on different planes and is used to jointly function as one or more dipoles. Further, each radiator contributes to resonances at two or more non-overlapping bands. This compact, multi-layered antenna structure is designed for space-efficient operation in multiple frequency bands. It is particularly suitable for portable communication devices with size constraints, as it provides transmit and/or receive capabilities across different bands while occupying minimal space.