Dielectric Antenna Array for 5G Mobile Terminals
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Solution Overview
Problem
The integration of 5G antennas in mobile terminals often degrades the performance of existing 4G antennas due to overlapping antenna systems, requiring increased terminal size and limited directional coverage.
Innovation Solution
A mobile terminal design incorporating a dielectric antenna array as a resonator for 5G communication, which operates without affecting the performance of adjacent 4G antennas, utilizing dielectrics instead of metal materials to maintain radiation performance and avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a plurality of antenna elements are implemented for 5G communication, then transmission capacity is improved, but interference with existing 4G antenna elements occurs
Solution Approach 1:
The antenna system is segmented into distinct 4G and 5G antenna elements with different structural configurations. The 5G antenna uses a planar inverted-F structure with specific ground plane arrangements that are spatially and structurally separated from the 4G antenna elements, reducing mutual interference while maintaining both transmission capacities
Solution Approach 2:
The patent introduces spatial dimensionality separation by positioning 5G antenna elements in different spatial locations and orientations relative to 4G antennas. The 5G antenna array is configured with elements at specific heights and horizontal positions that create spatial isolation, allowing both systems to operate simultaneously without significant interference
2Adaptability or versatility
If 5G antenna elements are added to the terminal, then 5G functionality is achieved, but terminal size increases
Solution Approach 1:
The 4G and 5G antenna systems are merged into a single integrated antenna device structure. Both antenna types share common structural components such as the substrate, ground planes, and housing integration, allowing 5G functionality to be added without proportionally increasing terminal size
Solution Approach 2:
The antenna device is designed with multi-functionality to support both 4G and 5G communication standards within a single structural framework. The ground plane and substrate are configured to serve both antenna systems, and the housing structure accommodates both antenna types, achieving universality that prevents size increase
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
Enables 5G service with a single chip installation while maintaining 4G antenna performance without increasing the terminal size, achieving a half-power beamwidth of 270° and preventing performance degradation.
Implementation Method 1
a second antenna device formed adjacent to the first antenna and configured to generate a resonant frequency of a second frequency band, wherein the second antenna device is an antenna array including a plurality of dielectrics operating as a resonator
Data Source
AI summary
A mobile terminal includes a terminal body and an antenna device configured to generate a resonant frequency of a frequency band for 5G communication system. Further, the antenna device is an antenna array including a plurality of dielectrics operating as a resonator. The mobile terminal also includes a circuit board including a feeding unit and a ground plane and configured to be inserted into each of the dielectrics such that a portion of the circuit board protrudes outward.