Glass-Based Wave Radiation Structure With Shielded Gap Waveguide
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Solution Overview
Problem
Electromagnetic crosstalk in glass-based devices and circuits affects the performance of communication systems, and drilling holes in glass substrates is difficult due to their properties.
Innovation Solution
An electromagnetic wave radiation system with a shielding structure composed of metal pillars and dielectric substrates is used to prevent crosstalk, forming a periodic structure with a stop band characteristic, and a substrate-integrated gap waveguide to transmit electromagnetic waves without drilling through the glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electromagnetic shielding structure is added to reduce crosstalk, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The electromagnetic shielding structure is nested within the existing glass substrate architecture. Metal pillars are embedded in the glass substrate, and dielectric layers are integrated between the metal pillars and the conductive patterns on the glass surface, creating a nested configuration that provides shielding without requiring separate external shielding structures.
Solution Approach 2:
The shielding function is merged with the substrate structure itself. The glass substrate serves as both the mechanical support and the medium for embedding the shielding elements (metal pillars and dielectric layers), combining multiple functions into a single integrated structure rather than adding separate shielding components.
2Reliability
If metal pillars and dielectric substrates are used for shielding, then electromagnetic wave transmission is improved, but manufacturing complexity increases
Solution Approach 1:
The shielding structure is segmented into discrete metal pillars arranged in periodic arrays, rather than using continuous metal shields. This segmentation allows electromagnetic waves to pass through the gaps between pillars while still providing effective shielding, and simplifies manufacturing by enabling standard fabrication techniques to be used for creating the periodic pillar structures.
Solution Approach 2:
The design optimizes parameters such as the spacing, height, and diameter of metal pillars, as well as the thickness and permittivity of dielectric layers, to achieve effective shielding while maintaining manufacturability. By carefully selecting these parameters, the structure provides adequate electromagnetic isolation without requiring excessively complex or precision-critical 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
The system effectively reduces electromagnetic crosstalk and improves overall performance by avoiding the need for glass drilling, enhancing energy transmission and reducing interference.
Implementation Method 1
an electromagnetic shielding structure, between the electromagnetic wave transmission component and the first metal substrate
Implementation Method 2
a plurality of waveguide structures, on a side of the first metal substrate facing the second metal substrate
Implementation Method 3
a liquid crystal phase shifter and the glass-based antenna have good working characteristics
Data Source
AI summary
An electromagnetic-wave radiation system includes: a first metal substrate; a second metal substrate, opposite to the first metal substrate; an electromagnetic wave transmission component, between the first metal substrate and the second metal substrate; where the electromagnetic wave transmission component includes a first glass substrate and a second glass substrate arranged opposite to each other, a liquid crystal layer between the first glass substrate and the second glass substrate, and a plurality of electromagnetic wave transmission structures on a side of that first glass substrate facing the liquid crystal layer; the first glass substrate is close to the first metal substrate; and an electromagnetic shielding structure, between the electromagnetic wave transmission component and the first metal substrate.


