Results 31 to 40 of about 248,313 (294)

Performance Evaluation at the Remote Site for RF Frequency Dissemination Over Fiber

IEEE Photonics Journal, 2017
In the frequency dissemination system over fiber, users can obtain highly stable RF frequency signal from one frequency source. To ensure that the stability loss of the system meets the user's need, performance evaluation for RF frequency ...
Shanglin Li, Cong Wang, Haoyuan Lu, Jianye Zhao   +3 more
doaj   +1 more source

Transmitters for Combined Radio Over a Fiber and Outdoor Millimeter-Wave System at 25 GHz

IEEE Photonics Journal, 2020
In the modern wireless networks, millimeter-wave radio-frequency (RF) bands are becoming more attractive as they provide larger bandwidth and higher data rates than the today-used systems operating at frequencies below 6 GHz.
Jan Bohata, Matej Komanec, Jan Spacil, Radan Slavik, Stanislav Zvanovec   +4 more
doaj   +1 more source

Implantable RF-coiled chip packaging [PDF]

, 2008
In this paper, we present an embedded chip integration technology that utilizes silicon housings and flexible parylene radio frequency (RF) coils.
Li, W., Rodger, D. C., Tai, Y. C.
core   +1 more source

Signal Preprocessing for Enhanced IoT Device Identification Using Support Vector Machine

Future Internet
Device identification based on radio frequency fingerprinting is widely used to improve the security of Internet of Things systems. However, noise and acquisition inconsistencies in raw radio frequency signals can affect the effectiveness of ...
Rene Francisco Santana-Cruz, Martin Moreno, Daniel Aguilar-Torres, Román Arturo Valverde-Domínguez, Rubén Vázquez-Medina   +4 more
doaj   +1 more source

Photonic Radio Frequency Self-Interference Cancellation and Harmonic Down-Conversion for In-Band Full-Duplex Radio-Over-Fiber System

IEEE Photonics Journal, 2019
We report a photonic radio frequency (RF) self-interference cancellation (SIC) and harmonic down-conversion (HDC) scheme based on a dual-parallel dual-drive Mach-Zehnder modulator (DDMZM).
Sha Zhu, Ming Li, Ning Hua Zhu, Wei Li
doaj   +1 more source

Bandwidth of linearized electrooptic modulators [PDF]

, 1998
Many schemes have been proposed to make high dynamic range analog radio frequency (RF) photonic links by linearizing the transfer function of the link's modulator. This paper studies the degrading effects of finite transit time and optical and electrical
Bridges, William B., Cummings, Uri V.
core   +1 more source

The radio-frequency quadrupole

, 2013
Radio-frequency quadrupole (RFQ) linear accelerators appeared on the accelerator scene in the late 1970s and have since revolutionized the domain of low-energy proton and ion acceleration.
Vretenar, Maurizio
core   +1 more source

Flexible diodes for radio frequency (RF) electronics

Semiconductor Science and Technology, 2017
Over the last decade, there has been increasing interest in transferring the research advances in radiofrequency (RF) rectifiers, the quintessential element of the chip in the RF identification (RFID) tags, obtained on rigid substrates onto plastic (flexible) substrates.
Semple, James, Georgiadou, Dimitra G., Wyatt-Moon, Gwenhivir, Gelinck, Gerwin, Anthopoulos, Thomas D.   +4 more
openaire   +6 more sources

Overview of CW electron guns and LCLS-II RF gun performance

Frontiers in Physics, 2023
Various continuous-wave (CW) electron gun technologies are reviewed, including DC, superconducting radio frequency RF (SRF), hybrid DC-SRF and normal-conducting RF.
F. Zhou, C. Adolphsen, D. Dowell, R. Xiang   +3 more
doaj   +1 more source

Isosceles detector provides maximum resolution in expanded range [PDF]

, 1971
Dynamic range expansion system for radio frequency /RF/ signal detection equipment consists of RF amplifiers, RF amplitude modulated detectors, and operational amplifier.
Watterson, R. F.
core   +1 more source