Coupled Ground Connection in Antennas for Quarter-Wave Length
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Solution Overview
Problem
Existing antenna systems face challenges in achieving the desired electrical length for effective RF signal transmission and reception due to spatial constraints, often requiring additional components or increased physical length, which can compromise frequency bandwidth and increase spatial requirements.
Innovation Solution
The antenna system incorporates electromagnetically coupled regions in the ground connection to increase the electrical length without adding physical length or bulky components, allowing for improved radiation characteristics and reduced footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the physical length of the ground connection is increased to achieve desired electrical length, then the electrical length is improved, but the spatial requirements and device footprint increase
Solution Approach 1:
The patent changes the electrical parameters of the ground connection by introducing electromagnetically coupled regions with specific inductance and capacitance values. These parameter changes allow the ground connection to achieve the desired electrical length (e.g., quarter wavelength) without increasing its physical length, thereby resolving the contradiction between electrical length and device footprint
Solution Approach 2:
The patent introduces electromagnetically coupled regions as intermediary elements between the ground connection and the radiating element. These coupled regions act as mediators that provide the necessary electrical length through electromagnetic coupling rather than through physical length, thus achieving the desired electrical characteristics without increasing the device footprint
2Length of moving object
If additional components are added to achieve desired electrical length, then the electrical length is improved, but the device complexity increases
Solution Approach 1:
The patent merges the ground connection with electromagnetically coupled regions into a single integrated structure. Rather than adding separate components to achieve the desired electrical length, the coupled regions are integrated into the ground connection itself, thereby reducing device complexity while achieving the necessary electrical length
Solution Approach 2:
The electromagnetically coupled regions serve multiple functions: they provide the necessary electrical length, maintain proper grounding, and enable compact design. This multi-functionality eliminates the need for additional dedicated components, thereby reducing device complexity while achieving the desired electrical characteristics
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 approach enables antenna systems to achieve desirable electrical lengths, such as a quarter of the radiating wavelength, enhancing communication performance while maintaining a smaller footprint and reducing manufacturing costs.
Implementation Method 1
The ground connection can include one or more electromagnetically coupled regions. The one or more electromagnetically coupled regions can be configured to increase an electrical length of the ground connection relative to a conductor length of the ground connection.
Data Source
AI summary
An antenna system can include an antenna radiating element configured for at least one of RF signal transmission or RF signal reception. The antenna radiating element can include a ground leg. The antenna radiating element can include a ground connection coupled to the ground leg and configured to couple the ground leg to ground. The ground connection can include one or more electromagnetically coupled regions. The one or more electromagnetically coupled regions can be configured to increase an electrical length of the ground connection relative to a conductor length of the ground connection.