Millimeter Wave NFC Beamforming for Secure Near Field Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in near field communication (NFC) using RF signals, face challenges in securing data transmission due to large radiation patterns that can be eavesdropped, and existing beamforming technologies are complex and require multiple high-frequency phase modules.
Innovation Solution
A millimeter wave (MMW) NFC device with a processing module, MMW oscillation module, and MMW beamforming module that determines orientation and sets a controlled radiation pattern to minimize eavesdropping, using a plurality of amplifiers and antennas to produce a narrow focused radiation pattern for secure data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If RF signals are used for near field communication, then data transmission can be achieved, but large radiation patterns occur that can be eavesdropped
Solution Approach 1:
The patent applies local quality by creating a highly directional radiation pattern that concentrates electromagnetic energy in a specific localized direction (toward the reader device) rather than radiating uniformly in all directions. This is achieved through the MMW beamforming module which controls the phase and amplitude of signals across multiple antenna elements to form a focused beam, thereby reducing radiation in other directions and preventing eavesdropping.
Solution Approach 2:
The patent transitions from omnidirectional radiation (2D pattern) to highly directional radiation (1D focused beam) by introducing spatial dimensionality control through beamforming. The MMW beamforming module manipulates the spatial distribution of electromagnetic waves, creating a narrow directional pattern that effectively reduces the communication footprint to a specific angular sector, thereby enhancing security.
2Loss of information
If beamforming technology is implemented to control radiation pattern, then data security is improved, but device complexity increases due to multiple high-frequency phase modules
Solution Approach 1:
The patent merges the beamforming functionality directly into the MMW NFC device itself, integrating the MMW beamforming module with the existing NFC components. This consolidation eliminates the need for separate external beamforming hardware and reduces the overall component count. The beamforming capabilities are unified with the oscillation and amplification functions within a single integrated architecture.
Solution Approach 2:
The MMW beamforming module serves multiple functions simultaneously: it generates millimeter wave signals, performs beamforming to control radiation patterns, and enables secure NFC communication. This multi-functionality reduces the need for separate dedicated components for each function, thereby simplifying the overall device architecture while maintaining enhanced security capabilities.
3Loss of information
If millimeter wave beamforming is used, then narrow radiation pattern is achieved for secure transmission, but power consumption increases
Solution Approach 1:
The patent applies partial action by activating only the necessary number of antenna elements and amplifiers required to achieve the desired beamforming effect, rather than operating all components at full capacity. The MMW beamforming module dynamically controls which antenna elements are active based on communication requirements, reducing overall power consumption while maintaining the narrow directional radiation pattern needed for security.
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 MMW NFC device achieves secure, high-data-rate, low-power transmission with a narrow radiation pattern, effectively preventing eavesdropping and simplifying the component count by integrating beamforming functionality within the device.
Implementation Method 1
MMW oscillation module that generates a millimeter wave signal
Implementation Method 2
MMW beamforming module that converts the modulated MMW signal into a plurality of modulated beamformed signals
Implementation Method 3
a plurality of amplifiers that amplify the plurality of modulated beamformed MMW signals
Data Source
AI summary
A device includes a processing module, a millimeter wave (MMW) oscillation module, a MMW beamforming module, and a plurality of amplifiers. The processing module determines activation of the device and thereafter modulates data to produce modulated data, determines a beamforming setting, and establishes a transmit power setting. The MMW oscillation module generates a modulated MMW signal based on the modulated data. The MMW beamforming module converts the modulated MMW signal into a plurality of MMW beamformed signals based on the beamforming setting. The plurality of amplifiers amplifies the plurality of MMW beamformed signals in accordance with the transmit power setting to produce a MMW near field transmission.