mmW PCB Antenna Array with Gap-Integrated FMCW Radar
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Solution Overview
Problem
Existing wireless communication devices struggle to manage complex interactions and interference between different wavelengths of electromagnetic waves, particularly in modern communication systems that utilize multiple wavelengths for mmW communications and radar applications.
Innovation Solution
The integration of radar antennas into millimeter wave (mmW) modules, specifically positioned in gaps between mmW elements or at edges of the mmW PCB, allows for improved functionality by leveraging existing structures for mmW communications. This integration includes slot antennas configured for FMCW radar operation, which operate without interfering with mmW communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If radar antennas are integrated into mmW modules, then functionality is enhanced with position sensing and RF exposure monitoring, but device complexity increases due to managing interactions between radar and mmW communications
Solution Approach 1:
The patent integrates radar antennas and mmW communication elements into a single module structure, combining multiple functions (radar sensing and wireless communication) into one unified device. This merging approach enhances versatility while managing complexity through shared structural components and coordinated signal processing.
Solution Approach 2:
The mmW module is designed to perform multiple functions simultaneously - both radar operations (position sensing, RF exposure monitoring) and wireless communication. The module uses multi-functional antenna elements that can operate in different modes, allowing a single device to serve multiple purposes without requiring separate dedicated components for each function.
2Area of stationary object
If radar antennas are positioned in gaps between mmW elements, then space is efficiently utilized, but interference between radar and mmW signals may occur
Solution Approach 1:
The patent positions radar antennas specifically in the gap regions between mmW communication elements, creating localized functional zones within the module. This spatial arrangement allows efficient use of available space while the distinct positioning helps differentiate the operational zones of radar and communication functions, reducing potential interference through spatial separation.
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 integration of radar antennas into mmW modules enhances the functionality of these devices by enabling basic position sensing and RF exposure monitoring, while maintaining the performance of mmW communications. This approach allows for efficient use of space and effective management of electromagnetic radiation exposure.
Implementation Method 1
a slot antenna configured for frequency modulated continuous wave (FMCW) radar operation
Implementation Method 2
transmitting a first radar signal using the slot antenna; receiving a reflection of the first radar signal
Data Source
AI summary
Aspects described herein include methods and devices for radar integration with a mmW communication module. In some aspects, an apparatus is provided that includes a millimeter wave (mmW) printed circuit board (PCB), with first and second mmW elements, and a radar antenna. The first mmW element is coupled to a first side of the mmW PCB, where the first mmW element is configured for wireless mmW communications at frequencies above approximately 24 gigahertz (GHz). A second mmW element coupled to the first side of the mmW PCB, where the second mmW element is positioned adjacent to the first mmW element and is separated from the first mmW element by a gap spacing. A radar antenna is disposed in the mmW PCB and aligned with the gap spacing between the first mmW element and the second mmW element.