5G Sub-6 Antenna Layout With Vertical Symmetry and Isolation
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Solution Overview
Problem
The challenge is to design a low-profile antenna with high space utilization and arrangement freedom for electronic devices, particularly in the 5G Sub 6 band, while optimizing radio performance and securing isolation between adjacent antennas, given the limited size and shape constraints.
Innovation Solution
The solution involves a low-profile antenna structure with metal patterns and feeding patterns disposed on a substrate, featuring vias to connect the metal patterns and ground, and a vertical symmetric arrangement to reduce height and enhance radiation efficiency, along with offset feeding patterns to improve isolation and adjust coupling degrees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of antennas is increased for fast data transmission, then data transmission capability is improved, but design space is reduced and radiation efficiency becomes difficult to secure
Solution Approach 1:
The patent transitions from planar antenna arrangements to three-dimensional stacked configurations. Multiple antenna elements are arranged vertically across different layers (first antenna element in a first plane, second antenna element in a second plane), enabling increased antenna count without proportionally increasing the device footprint area.
Solution Approach 2:
The patent implements nested antenna structures where antenna elements are embedded within layered substrate configurations. The first and second antenna elements are nested within different planes of the substrate stack, allowing compact integration of multiple antennas while maintaining their individual radiation characteristics.
2Area of moving object
If antenna size is reduced to fit limited space, then space utilization is improved, but radiation efficiency becomes difficult to secure
Solution Approach 1:
The patent compensates for reduced individual antenna element sizes by utilizing the third dimension (vertical stacking). The effective radiating aperture is increased through spatial separation in the vertical direction, maintaining radiation efficiency despite smaller planar dimensions of individual elements.
Solution Approach 2:
The patent combines multiple antenna elements in a stacked configuration to achieve the overall radiation performance. The collective radiation pattern of the first and second antenna elements, positioned at different vertical planes, provides enhanced and more stable radiation efficiency compared to a single smaller element.
3Area of moving object
If multiple antennas are arranged adjacent to each other, then space utilization is improved, but isolation between antennas becomes difficult to secure
Solution Approach 1:
The patent reduces mutual interference by separating antenna elements in the vertical dimension rather than only in the horizontal plane. The first antenna element is positioned in a first plane while the second antenna element is positioned in a second plane, creating spatial separation that reduces coupling and interference while maintaining compact overall dimensions.
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 design achieves high antenna space utilization, reduced interference, and optimized wireless performance, enabling the placement of multiple antennas in a compact form factor with improved radiation efficiency and impedance matching.
Implementation Method 1
a first antenna having a metal pattern formed by printing a metal having a predetermined length and width on a front surface of a substrate and configured to radiate a first signal
Implementation Method 2
a feeding pattern disposed in a region defined as the metal pattern is separated to be spaced apart and configured to couple and feed the first signal to the metal pattern
Implementation Method 3
The antenna may include a via hole penetrating the substrate from a rear surface of the substrate to the front surface of the substrate
Data Source
AI summary
An electronic device having a 5G antenna, according to the present invention, is provided. The electronic device has the antenna comprising: a metal pattern in which metal having a predetermined length and width is printed and disposed on the front surface of a substrate, and which is configured to emit a first signal; and a feeding pattern which is disposed in an area in which the metal pattern is separated and spaced apart from the feeding pattern, and which is configured to coupling-feed the first signal to the metal pattern. In addition, the electronic device further comprises a second antenna which has a metal pattern and a second feeding pattern that are disposed to be symmetrical to those of the first antenna on the front surface of the substrate, and which is configured to emit a second signal.