Results 81 to 90 of about 3,465,717 (304)
Low-Cost Broadband RF Front-End Design for Enhanced Isolation in In-Band Full Duplex Radio
IEEE Journal of MicrowavesFuture radios face the challenge of delivering faster data rates while efficiently utilizing the limited and regulated electromagnetic spectrum. In this context, broadband spectrum access in-band full-duplex (IBFD) operation using a simultaneous transmit
MD Rakibur Rahman +2 more
doaj +1 more source
25–34 GHz Single-Pole, Double-Throw CMOS Switches for a Ka-Band Phased-Array Transceiver
Applied Sciences, 2018 This paper presents two single-pole, double-throw (SPDT) mm-wave switches for Ka-band phased-array transceivers, fabricated with a 65-nm complementary metal oxide semiconductor (CMOS) process.
Sangyong Park +4 more
doaj +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal
Micromachines, 2020 An eight-element multiple-input multiple-output (MIMO) frame antenna array in the 3.5 GHz band (3400–3600 MHz) for 5G mobile terminal systems was presented. By using the adjacent grounding and electromagnetic coupling feeding technology, the loop antenna
Rongqiang Li +4 more
doaj +1 more source
A high-performance single-mode fiber-optic isolator assembly [PDF]
A high-isolation single-mode fiber optic isolator assembly was designed and fabricated. The measured forward loss is 2.6 dB and the reverse loss (isolation) is greater than 70 dB.
Lutes, G.
core +1 more source
A simple atomic beam oven with a metal thermal break
, 2018 We report the design and construction of a simple, easy to machine high-temperature oven for generating an atomic beam in laser cooling experiments. This design eliminates the problem of thermal isolation of the oven region from the rest of the vacuum ...
Mangaonkar, Jay +5 more
core +1 more source
The AMIGA sample of isolated galaxies. IV. A catalogue of neighbours around isolated galaxies [PDF]
, 2007 Studies of the effects of environment on galaxy properties and evolution require well defined control samples. Such isolated galaxy samples have up to now been small or poorly defined.
Aars +65 more
core +8 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Low-loss, high-isolation, fiber-optic isolator [PDF]
A low-loss, high-isolation, fiber-optic isolator for use in single-mode fiber systems utilizes a Faraday rotator and two polarizers, one at each end angularly oriented from each other at the angle of rotation for isolation, and two aspheric lens ...
Lutes, George F.
core +1 more source
Solid state switch provides high input-to-output isolation [PDF]
, 1970 Switch uses a combination of N-channel and P-channel Metal Oxide Semiconductor Field Effect Transistors /MOSFET/ to obtain a normally open switch with no power applied.
Magee, R. L., Trowbridge, L. E.
core +1 more source