Dielectric Antenna Module Structure for mmWave Isolation
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Solution Overview
Problem
Next-generation mobile communication systems face performance deterioration due to path loss of radio waves, necessitating an improved antenna module structure for efficient communication, especially in massive MIMO environments.
Innovation Solution
The antenna module incorporates a radiator with a dielectric material and a support unit made of metallic material, along with a feeding unit that supplies electric signals through a printed circuit board, optimizing the frequency characteristics and isolation performance by precise spacing and configuration of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antenna module uses conventional structure without dielectric material, then manufacturing is simpler, but antenna performance in super-high-frequency ranges deteriorates due to path loss
Solution Approach 1:
The patent applies composite materials by combining dielectric material with the radiator and support unit. The dielectric material has specific properties (dielectric constant between 2.0-10.0, loss tangent between 0.001-0.01) that improve antenna performance in super-high-frequency ranges by reducing path loss while maintaining a manageable structural complexity through integration with existing components.
2Volume of moving object
If antenna module components are placed closer together, then device size is reduced, but isolation performance and frequency characteristics deteriorate
Solution Approach 1:
The dielectric material acts as an intermediary between the radiator and the support unit/ground structure. It provides electrical isolation while allowing compact positioning, maintaining frequency characteristics and isolation performance even when components are placed closer together. The specific dielectric properties enable this mediator function to work effectively at super-high frequencies.
3Reliability
If antenna module uses precise spacing and configuration, then frequency characteristics and isolation performance improve, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies parameter ranges for the dielectric material (dielectric constant: 2.0-10.0, loss tangent: 0.001-0.01) and for spacing dimensions that provide optimal performance while allowing manufacturing tolerances. By defining these parameter ranges rather than single precise values, the design achieves good frequency characteristics and isolation performance without requiring extremely tight manufacturing precision.
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 enhances antenna performance in super-high-frequency ranges, reduces manufacturing defects and costs, and improves communication efficiency in next-generation systems.
Implementation Method 1
a dielectric material disposed on a bottom face of the radiator, the bottom face of the radiator being opposite to the top face of the radiator
Implementation Method 2
a support unit disposed on the bottom face of the dielectric material, the support unit comprising a metallic material
Implementation Method 3
a radiator having a top face to which a radio wave is radiated
Data Source
AI summary
An antenna module of a wireless communication system is provided. The antenna module includes a radiator comprising a top face to which a radio wave is radiated, a dielectric material disposed on a bottom face of the radiator, the bottom face of the radiator being opposite to the top face of the radiator, a feeding unit disposed on a bottom face of the dielectric material, the feeding unit being configured to supply an electric signal to the radiator through the dielectric material, and a support unit disposed on the bottom face of the dielectric material, the support unit comprising a metallic material.