Staggered NFC Modules with Diagonal Waveguides
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Near Field Communication (NFC) systems face limitations in data rate due to low-frequency signals, which restrict their effectiveness at high frequencies, and traditional methods struggle with signal confinement and interference, violating emission limits.
Innovation Solution
The use of dielectric or metallic/dielectric field confinement blocks and modal launching structures, combined with artificial magnetic conductor surfaces, to confine and redirect electromagnetic fields, enabling high-frequency NFC communication with reduced signal loss and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If low-frequency signals are used in NFC systems, then signal confinement is easier, but data rate is limited
Solution Approach 1:
The patent transitions NFC from low-frequency operation to high-frequency operation (e.g., 2.4 GHz, 5 GHz, or higher) by changing the fundamental operating frequency parameter. This enables higher data rates while using dielectric and metallic structures to manage the challenges of high-frequency signal confinement and reduce radiation losses.
Solution Approach 2:
The patent employs composite structures combining dielectric materials (for field confinement) and metallic elements (for grounding and radiation control) to create an effective high-frequency transmission medium. This composite approach allows high-frequency signals to be confined effectively while maintaining signal integrity and achieving high data rates.
2Productivity
If high-frequency signals are used to increase data rate, then bandwidth increases, but signal confinement becomes difficult and radiation leakage increases
Solution Approach 1:
Dielectric structures serve as intermediary elements between the high-frequency signal source and the external environment. These dielectric materials confine the electromagnetic fields, acting as a mediator that prevents direct radiation leakage while allowing the high-frequency signals to transmit effectively for high bandwidth operation.
Solution Approach 2:
The patent converts the potentially harmful radiation leakage into beneficial confined field patterns by using dielectric and metallic structures. The structures that would normally reflect or radiate energy harmful to the system are instead configured to confine and guide the high-frequency energy, turning what would be interference into useful signal transmission.
3Ease of manufacture
If traditional NFC structures are used, then simplicity is maintained, but emission limits are violated
Solution Approach 1:
The patent moves from planar, two-dimensional NFC structures to three-dimensional configurations incorporating vertical dielectric layers, metallic ground planes, and layered architectures. This dimensional transition enables effective field confinement and radiation control necessary for emission compliance while maintaining manufacturability through standard PCB and packaging techniques.
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 approach enhances data rate and bandwidth in NFC systems, provides reliable communication between modules without physical contacts, and ensures compliance with emission regulations by minimizing radiation leakage.
Implementation Method 1
dielectric or metallic/dielectric field confinement blocks and modal launching structures, combined with artificial magnetic conductor surfaces, to confine and redirect electromagnetic fields
Implementation Method 2
artificial magnetic conductor surfaces, to confine and redirect electromagnetic fields
Data Source
AI summary
A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. The port region is offset laterally from the NFC coupler. The field confiner is skewed to provide a pathway between the NFC coupler and the port region.