Results 51 to 60 of about 36,496 (304)
A Ku-Band Bi-Directional Transmit and Receive IC in 0.13 μm CMOS Technology
Applied Sciences, 2022 This paper presents a Ku-band transmit and receive IC in 0.13 µm CMOS technology for mobile satellite communication beamforming systems. A Ku-band transmit and receive IC is composed of a bi-directional amplifier, a 6-bit phase shifter, and a 6-bit ...
Jeong-Geun Kim, Donghyun Baek
doaj +1 more source
Four-state full Q-band phase shifter using smooth-ridged waveguides [PDF]
, 2017 A novel four-state full Q-band waveguide phase shifter based on smooth-ridged sections is presented. The waveguide structure combines differential 90° and 180° phase shifters, whose combination provides the four-phase states (0°, 90°, 180°, and 270°) by ...
Aja Abelán, Beatriz +4 more
core +2 more sources
Multichannel vector sum phase shifter
Optics Letters, 2006 A novel multichannel vector sum phase shifter that is suitable for phased array antenna applications is demonstrated. Each channel is implemented using a distinct optical wavelength. Selective control of each channel is performed using an acousto-optic polarization coupler.
Lam Anh, Bui +2 more
openaire +3 more sources
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Impact of Symmetrical Phase Shifter on Power-System State Estimation
Elektronika ir Elektrotechnika, 2018 The paper deals with Power System State Estimation (PSSE) that plays essential role in modern dispatcher centres. The aim of the paper is to present results of original investigations on change of properties of PSSE when a symmetrical phase shifter is ...
Tomasz Okon, Kazimierz Wilkosz
doaj +1 more source
A 6-bit vector-sum phase shifter with a decoder based control circuit for x-band phased-arrays [PDF]
, 2015 This letter presents a 6-bit vector-sum phase shifter with a novel control circuitry for X-band phased-arrays using a 0.25-m SiGe BiCMOS technology. A balanced active balun and highly accurate I/Q network are employed to generate the reference in-phase ...
Cetindogan, Barbaros +8 more
core +1 more source
The role and implications of mammalian cellular circadian entrainment
FEBS Letters, EarlyView.At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley +1 more source
Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10
FEBS Letters, EarlyView.Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang +8 more
wiley +1 more source
The 30-GHz monolithic receive module [PDF]
Key requirements for a 30 GHz GaAs monolithic receive module for spaceborne communication antenna feed array applications include an overall receive module noise figure of 5 dB, a 30 dB RF to IF gain with six levels of intermediate gain control, a five ...
Bauhahn, P., Geddes, J., Sokolov, V.
core +4 more sources
Design considerations for high-power VHF radar transceivers: The Poker Flat MST radar phase control system [PDF]
, 1983 Sixty-four separate 50-kW peak-power transmitters are distributed throughout the 200 x 200 meter Poker Flat MST radar antenna array. The relative phase of each transmitter is automatically controlled by a 64-channel unit located in the main building at ...
Ecklund, W. L., Johnson, P. E.
core +1 more source