Antenna Module Multi-Band Resonance via Coupled Radiators
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Solution Overview
Problem
Current 5G mobile communication antennas face challenges in covering multiple frequency bands, particularly the Sub 6G LTE MIMO requirements, which include frequency bands from 1710 MHz to 2700 MHz, 3300 MHz to 5000 MHz, and 5150 MHz to 5850 MHz, due to limitations in broadband coverage.
Innovation Solution
The antenna module incorporates a metal frame with a specific arrangement of radiators, conductors, and slits, allowing for the generation of multiple frequency bands through coupling, including a Sub 6G LTE MIMO antenna, by utilizing a first radiator, a second radiator, a first conductor, and a second conductor connected between the radiators and the metal frame, forming closed loops and slots to achieve resonance across various frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional single-frequency antenna is used, then the antenna structure is simple, but it cannot cover multiple frequency bands required by 5G Sub 6G LTE MIMO
Solution Approach 1:
The patent combines multiple radiators (first radiator, second radiator, third radiator) with different resonant frequencies into a single antenna module. These radiators are coupled together through conductors and slits to form a unified structure that can operate across multiple frequency bands (1710-2700 MHz, 3300-5000 MHz, and 5150-5850 MHz), resolving the contradiction between frequency band coverage and structural complexity.
Solution Approach 2:
The antenna module is designed as a universal structure capable of supporting multiple frequency bands simultaneously. The metal frame, radiators, and conductors are configured to create multiple resonant modes, allowing the same antenna structure to serve multiple communication standards and frequency ranges, thus achieving multi-functionality without requiring separate antennas for each band.
2Adaptability or versatility
If multiple separate antennas are used to cover different frequency bands, then frequency band coverage is achieved, but the device size and structural complexity increase
Solution Approach 1:
The patent merges multiple antenna functions into a single integrated module. The first, second, and third radiators are positioned within one metal frame and coupled through shared conductors and slits, creating a compact multi-band antenna that replaces what would traditionally require multiple separate antennas, thereby reducing the overall area occupied.
Solution Approach 2:
The antenna structure employs a nested configuration where radiators and conductors are arranged within the metal frame in a space-efficient manner. The slits are formed between radiators and the frame, creating compact resonant structures that nest within the overall antenna module boundary, minimizing the required area while maintaining multiple frequency band capabilities.
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 enables the antenna module to effectively cover multiple frequency bands, achieving good performance in voltage standing wave ratio, isolation, and antenna efficiency, thereby meeting the broadband requirements of 5G mobile communication.
Implementation Method 1
forming closed loops and slots to achieve resonance across various frequency bands
Implementation Method 2
multiple frequency bands may be generated through coupling
Data Source
AI summary
An antenna module includes a metal frame and an antenna structure. The metal frame includes an opening and a first edge and a second edge located at two opposite sides of the opening. The antenna structure is disposed at the opening and includes a first radiator, a second radiator, a first conductor, and a second conductor. The first radiator includes first and second sections. The first section is near the first edge and includes a feeding end, and the second section extends from the first section to the second edge. The second radiator is located between the first section and the first edge and includes a ground end. A first slit is formed between the second radiator and the first section. The first conductor is connected between the second radiator and the metal frame. The second conductor is connected between the second radiator and the metal frame.