Dielectric Antenna Electric Wall Structure for Stable ISAC Beam Scanning
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Solution Overview
Problem
Existing antenna technologies for 6G networks face challenges in providing reliable integration of sensing and communication functions, leading to low reliability and inefficiencies in intelligent networks due to the combination of wideband, MIMO, and millimeter-wave systems.
Innovation Solution
A dielectric antenna design with a substrate layer, ground layer, and dielectric body, incorporating an electric wall structure with metal lines and air vias, enabling both leaky-wave and standing-wave radiation modes for integrated sensing and communication (ISAC) applications, utilizing a connected structure to support high-gain and compact antenna solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing antenna technologies (wideband, MIMO, millimeter-wave) are combined for sensing and communication, then communication and sensing functions are provided, but reliability in intelligent networks deteriorates
Solution Approach 1:
The antenna is divided into multiple antenna elements (at least two) with different radiation patterns, allowing separate optimization for sensing and communication functions. Each element can be independently controlled to perform specific tasks, improving overall system reliability through functional separation.
Solution Approach 2:
The antenna system integrates multiple functions (sensing, communication, beamforming) into a single unified structure that supports both millimeter-wave and sub-6GHz frequencies. The same physical antenna performs multiple roles through configurable radiation patterns and beamforming capabilities.
2Adaptability or versatility
If multiple antenna elements are used for integrated sensing and communication, then functional versatility is improved, but device complexity increases
Solution Approach 1:
Multiple antenna elements are combined into a single integrated antenna structure with shared substrate, feed network, and control circuitry. This merging approach reduces overall system complexity compared to using separate antennas for sensing and communication while maintaining the benefits of multiple elements.
Solution Approach 2:
The patent utilizes vertical stacking of antenna elements on different layers of the substrate, transitioning from a planar to a three-dimensional arrangement. This allows multiple elements to be packed efficiently without increasing planar footprint, reducing complexity in the XY-plane while maintaining functional versatility.
3Productivity
If beamforming and reconfigurable functions are implemented, then communication performance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The antenna employs reconfigurable elements that can dynamically change their electrical characteristics (impedance, resonance frequency, radiation pattern) through voltage or current control. This allows beamforming and pattern adjustment without requiring precise physical reconfiguration, reducing manufacturing tolerances while maintaining high communication efficiency.
Solution Approach 2:
The antenna system incorporates dynamically controllable elements that can adjust their electrical properties in real-time through integrated control circuits. This dynamic reconfigurability enables adaptive beamforming and pattern control without requiring high-precision fixed structures, as the optimization is achieved through electrical control rather than mechanical precision.
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 proposed antenna design achieves stable radiation performance, wide scanning range, and efficient beam manipulation, enhancing communication speed and sensing accuracy by integrating leaky-wave and standing-wave radiation, thus improving the performance of ISAC systems.
Implementation Method 1
enabling both leaky-wave and standing-wave radiation modes for integrated sensing and communication (ISAC) applications
Implementation Method 2
enabling both leaky-wave and standing-wave radiation modes for integrated sensing and communication (ISAC) applications
Implementation Method 3
The dielectric antenna further contains an electric wall structure on a top of the dielectric body for cutting links among higher-order modes of the dielectric antenna
Data Source
AI summary
A dielectric antenna that includes a substrate layer, a ground layer on top of the substrate layer, and a dielectric body on top of the ground layer. The dielectric body has an elongated shape. The dielectric antenna further contains an electric wall structure on a top of the dielectric body for cutting links among higher-order modes of the dielectric antenna. The invention aims to investigate novel antenna solutions for integrated sensing and communication (ISAC) applications.