Single Antenna System with Integrated Decoupling Circuit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multi-antenna systems for notebooks, especially in narrow-bezel designs, face challenges in reducing size while maintaining high antenna isolation due to the need for decoupling components and resonant structures, which increase the overall size of the antenna system.
Innovation Solution
A single antenna system with a dual-feed configuration incorporates a decoupling circuit and a unique metal structure design, including a ground element, feeding metal portions, a shorting metal portion, and a radiating metal portion, to achieve high isolation and size reduction, allowing for operation at the same frequencies as dual-antenna systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If decoupling components or quarter-wavelength resonant structures are configured between antenna units to improve antenna isolation, then antenna isolation is improved, but the distance between antenna units increases and the whole size of the antenna system increases
Solution Approach 1:
The patent merges the decoupling circuit with the antenna unit structure itself, making the decoupling circuit an integral part of the antenna unit rather than a separate component. This integration allows the decoupling function to be achieved within the existing antenna footprint, avoiding additional space requirements while maintaining high antenna isolation.
Solution Approach 2:
The antenna unit structure is designed to serve multiple functions simultaneously: the feeding metal portion and ground element structure provide both the radiating function and the decoupling function. The integrated decoupling circuit is embedded within the antenna unit structure, allowing a single component to fulfill both radiation and isolation requirements.
2Reliability
If dual-antenna system with separated antenna units is used to ensure high antenna isolation, then antenna isolation is improved, but the distance between antenna units must be maintained at about 0.6 times wavelength which increases the whole size
Solution Approach 1:
The patent combines two antenna units into a single integrated antenna structure with a dual-feed configuration. The feeding metal portion includes first and second feeding portions that are electrically connected through a connection portion, creating a unified structure that provides both antenna elements in close proximity while maintaining isolation through the integrated decoupling circuit.
Solution Approach 2:
The decoupling circuit is nested within the antenna unit structure, with the feeding metal portion and ground element forming an integrated assembly. The decoupling functionality is embedded within the physical boundaries of the antenna unit itself, allowing compact arrangement without requiring separate decoupling components.
Data Source
AI summary
The disclosure provides a single antenna system comprising a ground element, a feeding metal part, at least one shorting metal part, a radiating metal part, a decoupling circuit, a first feed source, and a second feed source. The single antenna system with an integrated decoupled circuit not only effectively achieves size reduction, but achieve high antenna isolation. Moreover, the single antenna system is applied for narrow-bezel notebooks and small-size antenna systems in future.