Multi-Layer Antenna Module With Air Gap for mmWave Directivity
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Solution Overview
Problem
Existing antenna modules for electronic devices operating in the mmWave band face challenges in enhancing antenna gain and directivity, particularly in a multi-layer substrate configuration.
Innovation Solution
The proposed solution involves an antenna module with a dielectric and air gap structure, where a first dielectric layer, a second dielectric layer, and an air gap layer are strategically arranged to enhance directivity and efficiency of the antenna elements. This configuration includes a hexahedron structure with the air gap layer implemented within, improving antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If antenna elements are arranged in a multi-layer substrate configuration, then the arrangement space is reduced and integration is improved, but the antenna gain and directivity are insufficient
Solution Approach 1:
The patent transitions from a planar two-dimensional antenna layout to a three-dimensional multi-layer substrate configuration. Antenna elements are arranged across multiple layers (first antenna layer, second antenna layer) with vertical spacing, enabling spatial multiplexing and beamforming capabilities while maintaining compact footprint. This dimensional expansion resolves the contradiction by providing both space efficiency and enhanced radiation performance through 3D geometry.
Solution Approach 2:
The patent implements a nested hierarchical structure where antenna elements are organized within multiple substrate layers, with each layer containing antenna elements that are vertically stacked. The first and second antenna layers are nested within the multi-layer substrate, creating a compact integrated structure that achieves high integration while maintaining individual element characteristics for improved gain and directivity.
2Device complexity
If antenna elements radiate in one side direction, then the structure is simple, but the directivity and efficiency are limited
Solution Approach 1:
The patent divides the antenna system into multiple independent antenna elements arranged in arrays across different layers. Each antenna element can be independently controlled with separate feeding networks, enabling individual element optimization while collectively achieving enhanced directivity through phased array beamforming. This segmentation allows complex radiation patterns to be synthesized from simpler individual elements.
Solution Approach 2:
The patent implements dynamic beam steering capability through electronically controllable phase shifters and amplitude controllers associated with each antenna element. The radiation direction and pattern can be dynamically adjusted without mechanical movement, allowing the antenna system to adaptively optimize directivity toward desired directions while maintaining structural simplicity.
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 described antenna module achieves improved antenna gain and efficiency by optimizing the directivity of the antenna elements, allowing for effective wireless communication in multiple directions with various peripheral electronic devices.
Implementation Method 1
an antenna module with a dielectric and air gap structure, where a first dielectric layer, a second dielectric layer, and an air gap layer are strategically arranged to enhance directivity and efficiency of the antenna elements
Data Source
AI summary
This electronic device comprises: a main frame disposed along a peripheral region of a display and extending along a side region and a rear region of the electronic device; and an antenna module disposed in an inner space of the main frame and configured to radiate a radio signal in a forward direction or a downward direction of the electronic device through the main frame. The antenna module comprises: a first dielectric layer disposed spaced apart from one side of the antenna substrate in a first direction in which antenna elements radiate signals; a second dielectric layer disposed spaced apart from the first dielectric layer in the first direction; and an air gap layer disposed between the first dielectric layer and the second dielectric layer.