Results 1 to 10 of about 6,360,569 (404)
Optical frequency comb technology for ultra-broadband radio-frequency photonics [PDF]
, 2014 The outstanding phase-noise performance of optical frequency combs has led to a revolution in optical synthesis and metrology, covering a myriad of applications, from molecular spectroscopy to laser ranging and optical communications. However, the ideal characteristics of an optical frequency comb are application dependent.
V. Torres‐Company, A. Weiner
arxiv +3 more sources
Radio Frequency Identification [PDF]
International Journal of Research in Engineering and Technology, 2017 Tales Cleber Pimenta +1 more
semanticscholar +4 more sources
Probing quantum devices with radio-frequency reflectometry [PDF]
Applied Physics Reviews, 2022 Many important phenomena in quantum devices are dynamic, meaning that they cannot be studied using time-averaged measurements alone. Experiments that measure such transient effects are collectively known as fast readout. One of the most useful techniques
F. Vigneau +7 more
semanticscholar +1 more source
Towards Scalable and Channel-Robust Radio Frequency Fingerprint Identification for LoRa [PDF]
IEEE Transactions on Information Forensics and Security, 2021 Radio frequency fingerprint identification (RFFI) is a promising device authentication technique based on transmitter hardware impairments. The device-specific hardware features can be extracted at the receiver by analyzing the received signal and used ...
Guanxiong Shen +3 more
semanticscholar +1 more source
A Dual-Band Dual-Polarized Base Station Antenna Array With Isolation Enhancement
IEEE Open Journal of Antennas and Propagation, 2023 In this paper, a dual-band dual-polarized antenna with isolation enhancement is designed. The proposed antenna operates in the frequency range of 3.4–3.6 GHz and 4.8-5 GHz, where the center frequency of the high band (HB) is 1.4 times that of the ...
Lei Ge +4 more
doaj +1 more source
Memristive technologies for data storage, computation, encryption, and radio-frequency communication
Science, 2022 Memristive devices, which combine a resistor with memory functions such that voltage pulses can change their resistance (and hence their memory state) in a nonvolatile manner, are beginning to be implemented in integrated circuits for memory applications.
M. Lanza +9 more
semanticscholar +1 more source
Sensors, 2022 Magnetic coupling resonance wireless power transfer can efficiently provide energy to intracranial implants under safety constraints, and is the main way to power fully implantable brain–computer interface systems.
Haochuan Wang +6 more
doaj +1 more source
Photonics, 2023 This study experimentally demonstrates two types of ultra-broadband metamaterial absorbers with high performance in the visible-to-near-infrared range by using different anti-reflection coatings (i.e., SiO2 and Si3N4) and a multi-subcell Ti-SiO2-Ti ...
Dongqing Wu +4 more
doaj +1 more source
Frequency-dependent polarization of repeating fast radio bursts—implications for their origin [PDF]
Science, 2022 The polarization of fast radio bursts (FRBs), which are bright astronomical transient phenomena, contains information about their environments. Using wide-band observations with two telescopes, we report polarization measurements of five repeating FRBs ...
Yi Feng +25 more
semanticscholar +1 more source