Results 41 to 50 of about 15,125 (296)

A phase-locked frequency divide-by-3 optical parametric oscillator

, 2000
Accurate phase-locked 3:1 division of an optical frequency was achieved, by using a continuous-wave (cw) doubly resonant optical parametric oscillator.
Clairon, A., Douillet, A., Makdissi, A., Santarelli, G., Zondy, J. -J.   +4 more
core   +1 more source

A wideband high-linearity RF receiver front-end in CMOS [PDF]

, 2004
This paper presents a wideband high-linearity RF receiver-front-end, implemented in standard 0.18 /spl mu/m CMOS technology. The design employs a noise-canceling LNA in combination with two passive mixers, followed by lowpass-filtering and amplification ...
Arkesteijn, Vincent J., Klumperink, Eric A.M., Nauta, Bram   +2 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Design of a Microstrip Diplexer-Integrated Filtering Power Divider

IEEE Access, 2019
This study proposed a new method and structure for designing a diplexer-integrated filtering power divider. A filtering function with equal power division was integrated with a diplexer. The multifunctional diplexer comprised eight coupled resonators and
Chi-Feng Chen, Kai-Wei Zhou, Ruei-Yi Chen, Zu-Cing Wang, Yi-Hua He   +4 more
doaj   +1 more source

Microstrip multifunctional reconfigurable wideband filtering power divider with tunable centre frequency, bandwidth, and power division ratio based on three‐parallel‐coupled line section

Electronics Letters, 2023
A compact microstrip multifunctional reconfigurable filtering power divider (FPD) is proposed based on varactor‐loaded three‐parallel‐coupled line section (TLCS) in this letter.
Qianwen Liu, Gang Zhang, Chenyang Yuan, Kang Ping, Ying Zhou   +4 more
doaj   +1 more source

Wideband filtering power divider with high selectivity

Electronics Letters, 2015
A wideband filtering power divider (PD) with high selectivity is introduced, based on a terminated coupled line structure. The bandwidth tuning, isolation and impedance matching performances optimisation are presented and explained.
Bo Zhang, Yuanan Liu
openaire   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

A direct synthesis method of multi‐port filtering power divider with arbitrary phase shift, power division and reference impedances

IET Microwaves, Antennas & Propagation, 2023
In this study, a direct synthesis approach is proposed to extract the coupling matrix of multi‐port filtering power divider (FPD) with arbitrary phase shift, power division as well as reference impedances, for the first time.
Gang Zhang, Minghan Shu, Kam Weng Tam, Wang Chen, Wanchun Tang, Jiquan Yang   +5 more
doaj   +1 more source

Design and Optimization of an Ultra-Low-Power Cross-Coupled LC VCO with a DFF Frequency Divider for 2.4 GHz RF Receivers Using 65 nm CMOS Technology

Journal of Low Power Electronics and Applications, 2023
This article presents the design and optimization of a tunable quadrature differential LC CMOS voltage-controlled oscillator (VCO) with a D flip-flop (DFF) frequency divider.
Muhammad Faisal Siddiqui, Mukesh Kumar Maheshwari, Muhammad Raza, Aurangzeb Rashid Masud   +3 more
doaj   +1 more source

Wideband filtering power dividers with/without notch band

Microwave and Optical Technology Letters
AbstractLow loss and compact wideband filtering power dividers (WB‐FPDs) with/without notch band are proposed. The WB‐FPDs are designed using wideband bandpass filter based on asymmetric stepped‐impedance resonator (SIR). Parallel coupled microstrip lines are used to create both wideband filtering characteristic and two additional transmission poles. A
Ali Kursad Gorur, Engin Dogan, Ceyhun Karpuz, Adnan Gorur   +3 more
openaire   +3 more sources