Multi-band Antenna Structure with Nested Radiators for 5G Resonance
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Solution Overview
Problem
Designing an antenna structure that can effectively resonate multiple frequency bands, specifically the 1710 MHz to 2700 MHz, 3300 MHz to 5000 MHz, and 5150 MHz to 5850 MHz bands, is a challenge in current antenna design for 5G communication.
Innovation Solution
The antenna structure comprises a first radiator with a unique configuration of sections and a second radiator disposed around it, forming a coupling interval to resonate the specified frequency bands, along with frequency modulation radiators and an antenna ground plane, allowing for efficient resonance across multiple bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional single-frequency antenna designs are used, then the antenna structure is simple, but it cannot resonate multiple frequency bands (1710-2700 MHz, 3300-5000 MHz, 5150-5850 MHz) required for 5G communication
Solution Approach 1:
The antenna structure is designed to perform multiple functions by resonating across three distinct frequency bands (1710-2700 MHz, 3300-5000 MHz, 5150-5850 MHz) using a single integrated radiator configuration, eliminating the need for separate antennas for each frequency band
Solution Approach 2:
The antenna employs a nested configuration where the second radiator is disposed around the first radiator, with the first radiator including sections that encircle a space, creating a compact multi-layered structure that achieves multiple frequency resonances within a small footprint
2Adaptability or versatility
If multiple separate antennas are used to cover different frequency bands, then each frequency band can be optimized, but the device occupies more space and requires more antenna elements
Solution Approach 1:
Multiple antenna functions for different frequency bands are merged into a single integrated antenna structure, where the first and second radiators work together to resonate 1710-2700 MHz, 3300-5000 MHz, and 5150-5850 MHz bands simultaneously, reducing the number of antenna elements required
Solution Approach 2:
The antenna utilizes three-dimensional spatial arrangement with the second radiator disposed around the first radiator, and sections encircling a space, to achieve multiple frequency resonances within a compact volume, effectively using vertical and radial dimensions to pack multiple functions into a small area
3Volume of moving object
If the coupling interval between radiators is reduced to compact the antenna, then the antenna size is reduced, but the isolation between frequency bands may deteriorate
Solution Approach 1:
The antenna employs different structural characteristics in different sections of the radiator, with specific section configurations and a controlled coupling interval (0.5-1 mm) between the second radiator and third section, to achieve both compact size and adequate frequency band isolation through localized structural optimization
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 structure achieves good isolation and efficient resonance across the specified frequency bands, enabling a compact design that meets the requirements of multiple frequency bands while reducing antenna usage and space, with performance metrics such as VSWR, isolation, and efficiency demonstrating its effectiveness.
Implementation Method 1
a first frequency band, a second frequency band and a third frequency band are resonated by the first radiator and the second radiator
Data Source
AI summary
An antenna structure including a first radiator and a second radiator is provided. The first radiator includes a first section, a second section, and a third section. The first section has a feed-in end. The second section is adjacent to the first section and connected to a position of the first section close to the feed-in end. The third section is connected to the second section and the feed-in end to encircle a space. The second radiator is disposed around the first section and the second section. The second radiator includes a first end and a second end opposite to each other. The first end is a ground end. A coupling interval is formed between the second end and the third section. A first frequency band, a second frequency band, and a third frequency band are resonated by the first radiator and the second radiator.