Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Christopher R. Valenta"'
Publikováno v:
IEEE Microwave and Wireless Components Letters. 31:349-352
Optically transparent conductors (TCs) have been implemented and adopted into next-generation transmission lines and other RF structures from UHF to millimeter-wave (mmWave) applications. A current method of evaluating the performance of optically TC
Publikováno v:
SPIE Future Sensing Technologies 2021.
Optically transparent antennas integrated within an optical aperture enable unique opportunities for shared aperture radio frequency (RF)/electro-optical(EO)/infra-red (IR) sensing and communication. While optical transmission and RF efficiency are c
Publikováno v:
Laser Radar Technology and Applications XXV.
Optically transparent antennas are an enabling technology for creating single aperture radio frequency (RF)/Electro- Optical (EO)/Infra-red (IR) sensing and communication systems. Multi-sensor information processing, simplified alignment, resiliency
Publikováno v:
IEEE Microwave Magazine. 15:108-120
The idea of wireless power transfer (WPT) has been around since the inception of electricity. In the late 19th century, Nikola Tesla described the freedom to transfer energy between two points without the need for a physical connection to a power sou
Publikováno v:
IEEE RFID
A model has been developed through closed-form equations which simply determines the theoretical output power and energy-conversion efficiency for an RF-to-dc energy harvesting circuit with N rectifying elements. This model improves on previous works
Autor:
Christopher R. Valenta
Publikováno v:
RFID-TA
The rectifying element of any wireless power transfer system or RF energy harvester is the critical piece in determining the maximum frequency of operation and maximum energy-conversion efficiency. Schottky diodes are traditionally used for their low
Autor:
Gregory D. Durgin, Blake R. Marshall, Muhammad B. Akbar, Marcin M. Morys, Christopher R. Valenta, Yenpao Lu
Publikováno v:
2013 IEEE International Conference on RFID (RFID).
This paper discusses how a low-powered RFID tag or sensor mote's backscatter modulation scheme - limited in ways that conventional digital wireless systems are not - may be adapted to the peculiar non-white noise properties of a backscatter receiver'
Autor:
Gregory D. Durgin, Roger Hasse, Muhammad B. Akbar, W. Hunsicker, Krishna Naishadham, Christopher R. Valenta
Publikováno v:
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation.
A novel miniaturized printed circular loop antenna with perimeter of nearly one wavelength is designed for operation with a radio-frequency identification (RFID) tag at 5.8 GHz. RFID tags and RFID-enabled sensors which operate at this frequency offer
Autor:
Patrick A. Graf, Matthew S. Trotter, Christopher R. Valenta, Bradley J. Schafer, Gregory A. Koo, Gregory D. Durgin
Publikováno v:
2010 IEEE Sensors.
This study characterizes 5.8 GHz backscatter radio links in a transient, high-voltage power line environment. The measured results demonstrate how increased RF carrier frequency provides additional resistance to the noise, interference, and corona sh