Antenna Module With Nested Dipole and Patch Elements
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Solution Overview
Problem
The challenge is to reduce the size of antenna modules in electronic devices while maintaining effective coverage for high-frequency signals, particularly above 6 GHz, due to limited mounting space in miniaturized and multifunctional devices.
Innovation Solution
The solution involves a compact antenna module design that integrates multiple antenna elements on a single substrate, including dipole and patch-type antennas, with a recessed structure and stubs to optimize signal transmission and reception, reducing the module's size without compromising performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna elements are arranged in a regular shape to receive or transmit signals efficiently, then signal reception and transmission efficiency is improved, but the area occupied by the antenna module increases
Solution Approach 1:
The patent implements nesting by placing patch-type radiators on the upper surface of the ground member and dipole radiators on the lower surface, with extension parts extending from the ground member to provide separation. This nested arrangement allows multiple antenna elements to occupy overlapping spatial regions, reducing the overall area while maintaining signal efficiency through three-dimensional spatial distribution.
2Volume of stationary object
If a plurality of antenna elements are integrated on a single substrate to reduce module size, then the volume of the antenna module is reduced, but signal quality and omnidirectional coverage may deteriorate
Solution Approach 1:
The patent transitions from two-dimensional planar arrangement to three-dimensional spatial distribution by utilizing both upper and lower surfaces of the ground member, with extension parts providing vertical separation. This dimensional expansion allows multiple antenna elements to be integrated in a compact volume while maintaining omnidirectional coverage and signal quality through spatial diversity.
Solution Approach 2:
The patent segments the antenna elements into different types (patch-type radiators for vertical polarization and dipole radiators for horizontal polarization) arranged in specific patterns. This segmentation allows each element type to optimize its radiation characteristics while collectively providing omnidirectional coverage, maintaining signal quality in the reduced volume.
3Volume of moving object
If the antenna module is miniaturized to fit limited mounting space, then the device form factor is improved, but the coverage range and signal strength may be compromised
Solution Approach 1:
The nested arrangement of antenna elements on opposite surfaces with extension parts allows the antenna module to achieve miniaturization while maintaining effective coverage. The vertical separation provided by extension parts ensures adequate signal strength by reducing mutual coupling, even in the compact miniaturized form factor.
Solution Approach 2:
By utilizing the third dimension (vertical separation between upper and lower surfaces), the patent achieves miniaturization in the planar footprint while preserving coverage range and signal strength through the vertical stacking of antenna elements with appropriate spacing.
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 reduced antenna module size while maintaining omnidirectional coverage and improving signal quality for high-frequency bands, enhancing data throughput in limited spatial configurations.
Implementation Method 1
a plurality of dipole radiators spaced apart from the ground member, respectively arranged to be adjacent to the plurality of extension parts, extending in the first direction, and configured to radiate horizontal polarization
Implementation Method 2
a plurality of patch-type radiators arranged on the plane part along the second direction and configured to radiate vertical polarization
Data Source
Figure 1
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Figure 3~4
AI summary
An electronic device is provided, which includes an antenna structure disposed inside housing and including a first surface facing a first direction and a second surface facing a direction opposite to the first direction. When viewed from above the first surface, the antenna structure may include a first region including a periphery extending in a second direction perpendicular to the first direction and including at least one ground layer, a second region contacting the periphery, a first dipole antenna extending in the second direction and spaced from the periphery, within the second region when viewed from above the first surface, a second dipole antenna extending in the second direction between the periphery and the first dipole antenna, and at least one conductive pattern interposed between the periphery and the second dipole antenna.