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Incident Power and Relative Phase Distribution Mapping in Reconfigurable Intelligent Surfaces Using Energy Harvesting
PAGE TITLE Overview PAGE SUMMARY Drexel researchers have developed an innovative method for obtaining incident power and relative phase distribution across Reconfigurable Intelligent Surfaces (RISs). Four versions of a novel energy harvesting circuit have been developed to trade-off sensitivity versus circuit complexity. The sensitivity of these...
Published: 7/25/2023   |   Inventor(s): Kapil Dandekar, Genevieve Dion, Chelsea Knittel-Amanatides, Md Abu Saleh Tajin, Kyei Anim
Keywords(s):  
Category(s): Communications & Cybersecurity > Comm: Wireless, Energy > Energy: Energy Harvesting
Functional Fabric Reconfigurable Intelligent Surfaces
PAGE TITLE Overview PAGE SUMMARY Drexel researchers have developed an innovative fabric-based reconfigurable intelligent surface (RIS) that uses conductive fabric sewn onto non-conductive fabric. This RIS prototype has been developed for IoT and WiFi applications and allows dynamic control of the propagation channel between communicating nodes....
Published: 7/3/2024   |   Inventor(s): Kapil Dandekar, Genevieve Dion, Chelsea Knittel-Amanatides, Md Abu Saleh Tajin, Kyei Anim
Keywords(s):  
Category(s): Communications & Cybersecurity > Comm: Wireless
Radio frequency directed energy weapon mitigation via passive beamforming reconfigurable intelligent surface
PAGE TITLE Overview PAGE SUMMARY Despite their enormous potential benefits, the possibility of using Reconfigurable Intelligent Surfaces (RIS) to mitigate Directed Energy Weapons (DEW) and their effects has not been widely recognized. High power radio frequency (RF) sources in a directed energy weapon can cause permanent damage by releasing concentrated...
Published: 7/3/2024   |   Inventor(s): Kapil Dandekar, Kyei Anim, Md Abu Saleh Tajin
Keywords(s):  
Category(s): Communications & Cybersecurity > Comm: Wireless
LinkPursuit – A Reinforcement Learning Method and Protocol for Distributed Antenna State Selection to Mitigate Wireless Interference
PAGE TITLEOverviewPAGE SUMMARY Network densification, the practice of deploying more radio access nodes into a geographical area, is being considered as a cost and bandwidth-effective method to increase wireless network capacity. Despite their benefits, widespread small-cell deployment also poses a tremendous challenge in terms of interference management....
Published: 1/22/2024   |   Inventor(s): Kapil Dandekar, Danh Nguyen, Nagarajan Kandasamy, Anton Paatelma, Harri Saarnisaari
Keywords(s):  
Category(s): Communications & Cybersecurity, Electrical Engineering & Electronics, Hardware, Circuits & Sensors, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Wireless, Electrical Engineering & Electronics > EE: Telecommunications, Hardware, Circuits & Sensors > Hardware: Antennas, Hardware, Circuits & Sensors > Hardware: Communication & Networking
A Scalable Hardware Implementation for Baseband Architecture in OFDM-based Communication Systems
PAGE TITLEOverviewPAGE SUMMARY The flow of data within hardware-implemented baseband kernels is inherently regular for all communication standards, which helps designers build fast, synchronized, and optimized baseband kernels on FPGAs. These architectures, however, are often strongly tied to the specific standards they are built for and are difficult...
Published: 7/24/2024   |   Inventor(s): Kapil Dandekar, Douglas Pfeil
Keywords(s):  
Category(s): Communications & Cybersecurity, Computing, Software, Analytics & Information Technology, Electrical Engineering & Electronics, Hardware, Circuits & Sensors, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Wireless, Electrical Engineering & Electronics > EE: Components, Electrical Engineering & Electronics > EE: Telecommunications, Hardware, Circuits & Sensors > Hardware: Antennas, Hardware, Circuits & Sensors > Hardware: Electronic Components
A Real-Time, Protocol-Aware Reactive Jamming Framework Built on Software Defined Radios
PAGE TITLEOverviewPAGE SUMMARY Wireless network jamming techniques are commonly used in both military and commercial applications to block communication between network devices. Denial-Of-Service techniques (e.g. continuous jamming) are frequently employed but suffer drawbacks including high power consumption and high probability of detection. Reactive...
Published: 7/24/2024   |   Inventor(s): Kapil Dandekar, Nagarajan Kandasamy, Danh Nguyen, Boris Shishkin, Cem Sahin, David Dorsey
Keywords(s):  
Category(s): Communications & Cybersecurity, Computing, Software, Analytics & Information Technology, Electrical Engineering & Electronics, Hardware, Circuits & Sensors, Communications & Cybersecurity > Comm: Reactive Jamming, Communications & Cybersecurity > Comm: Software Defined Radio, Communications & Cybersecurity > Comm: Wireless, Computing, Software, Analytics & Information Technology > Computing: Algorithms, Computing, Software, Analytics & Information Technology > Computing: Simulation & Modeling, Electrical Engineering & Electronics > EE: Electronic Devices, Electrical Engineering & Electronics > EE: Telecommunications, Hardware, Circuits & Sensors > Hardware: Antennas, Hardware, Circuits & Sensors > Hardware: Communication & Networking
Transparent Conformal polymer antennas for RFID and other wireless communications applications
PAGE TITLEOverview PAGE SUMMARY An optically transparent conformal polymer antenna and a method for producing the antenna from optically transparent conductive polymers. The method includes selecting an antenna design; providing an optically transparent conductive polymer material capable of being printed using an ink jet printer device; and printing...
Published: 7/11/2024   |   Inventor(s): Kapil Dandekar, Adam Fontecchio, Timothy Kurzweg
Keywords(s):  
Category(s): Materials & Chemicals, Communications & Cybersecurity, Electrical Engineering & Electronics, Hardware, Circuits & Sensors, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Wireless, Electrical Engineering & Electronics > EE: Telecommunications, Electrical Engineering & Electronics > EE: Electronic Devices, Electrical Engineering & Electronics > EE: Components, Hardware, Circuits & Sensors > Hardware: Antennas, Hardware, Circuits & Sensors > Hardware: Electronic Components, Hardware, Circuits & Sensors > Hardware: Communication & Networking, Materials & Chemicals > M-C: Electronic/Conductive, Materials & Chemicals > M-C: Polymers
System for Ultrasonic Communication Across Curved Metal Surfaces
PAGE TITLEOverview PAGE SUMMARY With the increasing reliability of wireless systems, many industries are opting to replace old hardwired systems with wireless ones. Wireless systems offer lower cost, higher flexibility systems that can be deployed in some applications where wired systems would be too cumbersome. Despite the benefits of wireless systems,...
Published: 1/11/2024   |   Inventor(s): Kapil Dandekar, Cole Gindhart, Moshe Kam, Richard Primerano
Keywords(s):  
Category(s): Communications & Cybersecurity, Electrical Engineering & Electronics, Electrical Engineering & Electronics > EE: Data Communications, Electrical Engineering & Electronics > EE: Telecommunications, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Wireless
Symmetric Encryption Key Generation Using Wireless Physical Layer Information Without Sharing Any Information Pertinent To The Key
PAGE TITLEOverviewPAGE SUMMARY In the wireless scenario, the shared nature of the medium allows for an eavesdropper to snoop on these transmissions without the knowledge of the legitimate users and jeopardize any future sensitive data. In order to prevent eavesdropping attacks, Drexel researchers have developed a symmetric key generation algorithm for...
Published: 1/11/2024   |   Inventor(s): Kapil Dandekar, Cem Sahin
Keywords(s):  
Category(s): Communications & Cybersecurity, Computing, Software, Analytics & Information Technology, Computing, Software, Analytics & Information Technology > Computing: Algorithms, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Network Signal Processing, Communications & Cybersecurity > Comm: Wireless
Metamaterial Reconfigurable Antennas
PAGE TITLEOverviewPAGE SUMMARY Leaky wave antennas that can be reconfigured in pattern and/or polarization by exploiting the characteristic of metamaterial structures loaded with variable capacitor and inductors employ a Composite Right Left Handed (CRLH) unit cell with two independent DC biases used to actively change the group delay of the transmission...
Published: 8/27/2024   |   Inventor(s): Kapil Dandekar, Michele D'amico, Daniele Piazza
Keywords(s):  
Category(s): Communications & Cybersecurity, Electrical Engineering & Electronics, Hardware, Circuits & Sensors, Materials & Chemicals, Materials & Chemicals > M-C: Metamaterials, Hardware, Circuits & Sensors > Hardware: Antennas, Hardware, Circuits & Sensors > Hardware: Electronic Components, Electrical Engineering & Electronics > EE: Components, Electrical Engineering & Electronics > EE: Telecommunications, Communications & Cybersecurity > Comm: Antennas, Communications & Cybersecurity > Comm: Wireless
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