Thin Patch Antenna Structure With Dielectric-Filled Ground Openings
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Solution Overview
Problem
The challenge of miniaturizing and thinning antennas to achieve a conformal structure design while maintaining or improving radiation efficiency is a critical issue in mobile terminals and wireless applications.
Innovation Solution
The design incorporates a dielectric layer with a radiation patch and a reference electrode layer featuring openings and hollow-out patterns, allowing for a reduced profile and enhanced radiation efficiency through the use of high dielectric constant materials in the openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna profile is reduced to achieve miniaturization and thinning, then the antenna can be conformal and lighter, but the radiation efficiency deteriorates
Solution Approach 1:
The patent applies local quality by introducing high dielectric constant materials specifically in the opening regions of the reference electrode layer, rather than uniformly throughout the entire antenna structure. This localized application allows the antenna to maintain a thin overall profile while concentrating electromagnetic energy enhancement where needed (in the openings), thereby improving radiation efficiency without increasing the overall antenna thickness. The high dielectric constant regions are strategically positioned to enhance the electromagnetic field distribution in the radiation area.
Solution Approach 2:
The patent employs composite materials by combining conventional dielectric materials with high dielectric constant materials in specific regions. The antenna structure consists of a base dielectric layer with openings filled by high dielectric constant materials, creating a composite structure that leverages the advantages of both material types. This composite approach enables the thin antenna profile to achieve improved radiation efficiency through the high dielectric constant regions while maintaining the mechanical integrity and conformal properties of the overall structure.
2Reliability
If high dielectric constant materials are used in openings to improve radiation efficiency, then radiation efficiency increases, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the reference electrode layer into regions with openings and regions without openings, and by selectively filling only the opening regions with high dielectric constant materials. This segmented approach allows the complex high dielectric constant material to be applied only where needed (in the openings), rather than throughout the entire electrode layer, thereby reducing the overall complexity of the structure while still achieving the radiation efficiency improvement.
Solution Approach 2:
The patent applies local quality by introducing high dielectric constant materials specifically in the opening regions of the reference electrode layer, rather than uniformly throughout the entire antenna structure. This localized application allows the antenna to maintain a thin overall profile while concentrating electromagnetic energy enhancement where needed (in the openings), thereby improving radiation efficiency without increasing the overall antenna thickness. The high dielectric constant regions are strategically positioned to enhance the electromagnetic field distribution in the radiation area.
3Weight of moving object
If the antenna is thinned to reduce weight, then weight decreases and conformal structure is achieved, but the radiation performance deteriorates
Solution Approach 1:
The patent applies local quality by introducing high dielectric constant materials specifically in the opening regions of the reference electrode layer, rather than uniformly throughout the entire antenna structure. This localized application allows the antenna to maintain a thin overall profile while concentrating electromagnetic energy enhancement where needed (in the openings), thereby improving radiation efficiency without increasing the overall antenna thickness. The high dielectric constant regions are strategically positioned to enhance the electromagnetic field distribution in the radiation area.
Solution Approach 2:
The patent employs composite materials by combining conventional dielectric materials with high dielectric constant materials in specific regions. The antenna structure consists of a base dielectric layer with openings filled by high dielectric constant materials, creating a composite structure that leverages the advantages of both material types. This composite approach enables the thin antenna profile to achieve improved radiation efficiency through the high dielectric constant regions while maintaining the mechanical integrity and conformal properties of the overall structure.
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 solution achieves a significant improvement in radiation efficiency, with increases of up to 8 times when using high dielectric materials in the openings, and maintains or enhances light transmittance and operational frequency bands.
Implementation Method 1
an important aspect of thinning of an antenna is to lower a profile of the antenna... increases of up to 8 times when using high dielectric materials in the openings
Data Source
AI summary
The present disclosure provides an antenna, a method for manufacturing an antenna and an antenna system. The antenna according to the present disclosure includes: a dielectric layer having a first surface and a second surface which are oppositely disposed along a thickness direction of the dielectric layer; a radiation patch disposed on the first surface of the dielectric layer; and a reference electrode layer disposed on the second surface of the dielectric layer and having an orthographic projection on the second surface at least partially overlapping an orthographic projection of the radiation patch on the second surface. The reference electrode layer has an opening penetrating therethrough along a thickness direction of the reference electrode layer, and an orthographic projection of at least a part of a radiation edge of the radiation patch on the first surface is located within an orthographic projection of the opening on the first surface.