Mesh Radiation Control Layer for Multi-Band Antenna Interference
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Solution Overview
Problem
Existing antenna devices struggle with radiation and impedance characteristics when multiple frequency band antennas are combined, leading to interference, reduced spatial efficiency, and degraded aesthetic properties.
Innovation Solution
The antenna device incorporates a radiation control layer with conductive mesh structures and hollow portions, along with a substrate layer, ground layer, and antenna dielectric layer, to enhance radiation performance and reliability across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If antennas of different frequency bands are disposed to be adjacent to each other, then spatial efficiency is improved, but radiation and impedance characteristics collide and are disturbed
Solution Approach 1:
A radiation control layer is introduced as an intermediary component between the antenna and the ground layer. This layer includes conductive mesh patterns with hollow portions that control the reflection characteristics of electromagnetic waves, preventing harmful interference between adjacent antennas of different frequency bands while maintaining spatial efficiency
Solution Approach 2:
The radiation control layer changes the reflection parameters of electromagnetic waves by using conductive mesh patterns with specific geometric configurations (hollow portions). This modifies the impedance and radiation characteristics to prevent collision between adjacent antennas operating at different frequencies
2Reliability
If a radiation control layer with conductive mesh structure and hollow portions is added, then radiation reliability and gain are improved, but device complexity increases
Solution Approach 1:
The radiation control layer uses a conductive mesh structure with hollow portions, creating a porous-like configuration that controls electromagnetic wave reflection. This structure improves radiation reliability and gain while maintaining a relatively simple layered construction that can be integrated into existing antenna systems
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 improves radiation reliability and gain by preventing destructive interference and inducing constructive interference between the antenna radiation wavelength and the ground layer reflection wavelength, while maintaining spatial efficiency and aesthetic appeal.
Implementation Method 1
the radiation may be disturbed and performance of the antenna may be degraded by a reflected wavelength by a conductive material and/or a ground included in an object to which the antenna is attached
Implementation Method 2
improving radiation reliability and gain by preventing destructive interference and inducing constructive interference between the antenna radiation wavelength and the ground layer reflection wavelength
Data Source
AI summary
An antenna device according to an embodiments of the present invention includes a substrate layer, a ground layer disposed on a bottom surface of the substrate layer, a radiation control layer disposed on a top surface of the substrate layer, the radiation control layer including a plurality of radiation control patterns formed of a conductive mesh structure, each of the radiation control patterns having a hollow portion, an antenna dielectric layer disposed on the radiation control layer, and an antenna unit disposed on the antenna dielectric layer.