Results 71 to 80 of about 33,221 (289)
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 +4 more
doaj +1 more source
Experiments with calibrated digital sideband separating downconversion
, 2010 This article reports on the first step in a focused program to re-optimize radio astronomy receiver architecture to better take advantage of the latest advancements in commercial digital technology.
Fisher, J. Richard, Morgan, Matthew A.
core +1 more source
Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges
Advanced Functional Materials, EarlyView.Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky +3 more
wiley +1 more source
Full-duplex analog radio-over-fiber system based on an integrated transceiver with a silicon microring modulator and a transfer-printed III-V photodetector [PDF]
, 2019 A full-duplex analog radio-over-fiber (RoF) system based on an integrated transceiver is proposed. The transceiver incorporates a C-band silicon microring modulator for the electrical-to-optical (E-O) conversion of the downstream signal and an O-band III-
Pan, Shilong +4 more
core
Noise characterization of an Optical Frequency Comb using Offline Cross-Correlation
, 2016 Using an offline cross-correlation technique, we have analyzed the noise behavior of a new type of optical frequency comb (OFC), which is carrier envelope offset (CEO) free by configuration, due to difference frequency generation.
Champenois, Caroline +8 more
core +2 more sources
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Photonic frequency conversion for the analog radio-over-fiber fronthaul
2024 24th International Conference on Transparent Optical Networks (ICTON)This work has received funding from grant CONFLOC (PID2022-137754OB) funded by MCIN/AEI/10.13039/501100011033/FEDER, UE. Rodrigo Méndez work is funded by EU’s Horizon Europe under Marie Sklodowska-Curie grant agreement No. 101073265 (EWOC). The expressed views and opinions are, however, those of the authors only and may not reflect those of the ...
Méndez Canú, Rodrigo Otoniel +6 more
openaire +1 more source
On the Transport Capability of LAN Cables in All-Analog MIMO-RoC Fronthaul
, 2017 Centralized Radio Access Network (C-RAN) architecture is the only viable solution to handle the complex interference scenario generated by massive antennas and small cells deployment as required by next generation (5G) mobile networks.
Combi, Lorenzo +3 more
core +1 more source
Orthogonal frequency-division multiplexing in wireless communication systems with multimode fiber feeds [PDF]
, 2001 The feasibility of using multimode fiber as an inexpensive cell feed in broad-band indoor picocellular systems is investigated in this paper. The performance of coded orthogonal frequency-division multiplexing (OFDM) for a variety of multimode fiber ...
Dixon, B.J., Iezekiel, S., Pollard, R.D.
core +1 more source
Bio‐Inspired Molecular Events in Poly(Ionic Liquids)
Advanced Functional Materials, EarlyView.Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley +1 more source