Results 21 to 30 of about 198,553 (294)
Manufacturing Tolerance Analysis of Deep-Ridged 90° Hybrid Based on InP 4 × 4 MMI
Photonics, 2020 An optical 90° hybrid based on an InGaAsP/InP deep-ridged 4 × 4 multimode interference (MMI) coupler is proposed and fabricated. Manufacturing tolerances on structural parameters of the 90° hybrid including multimode waveguide width and length, waveguide
Ziqing Lu +4 more
doaj +1 more source
IEEE Access, 2022 A CMOS up-conversion mixer with an intermediate frequency (IF) amplifier and local oscillator (LO) buffer is presented for mobile 28-GHz-band 5G dual-conversion transceivers.
Suyeon Lee +5 more
doaj +1 more source
Development of a multistage laser frequency stabilization for an interferometric gravitational-wave detector [PDF]
, 2003 Laser frequency stabilization is essential for interferometric gravitational-wave detectors to attain their target sensitivity. We have designed a multistage laser frequency stabilization system which has been applied in the development of the TAMA 300 ...
Barton, Mark A., Nagano, Shigeo
core +1 more source
Sensors, 2020 Biopotential sensing technology with electrodes has a great future in medical treatment and human—machine interface, whereas comfort and longevity are two significant problems during usage.
Minghui Chen +4 more
doaj +1 more source
Analysis and design of a differential sampled-line six-port reflectometer [PDF]
, 2012 The analysis and design of a differential six-port reflectometer (SPR) based on a sampled-line structure is presented in this paper. The practical differential SPR is realized in Coplanar Strip (CPS) transmission line form, using two baluns for ...
Chongcheawchamnan, M +3 more
core +2 more sources
Bose-Einstein Condensate Comagnetometer [PDF]
, 2020 We describe a comagnetometer employing the $f=1$ and $f=2$ ground state hyperfine manifolds of a $^{87}$Rb spinor Bose-Einstein condensate as co-located magnetometers.
Gomez, Pau +5 more
core +2 more sources
DC biased input stage with differential photocurrent sensing for VLC front-ends [PDF]
, 2017 The reverse bias voltage across the PIN photodiode is essential for the photodiode to operate in the photoconductive mode. This paper presents an input bias stage with differential photocurrent sensing for VLC front-ends.
Basha, Majed, Binns, Richard
core +2 more sources
A Tunable Balanced Coupler With Improved Phase Balance and Extended Bandwidth
IEEE Access, 2019 This paper proposes a balanced coupler with improved phase balance and extended bandwidth for a wide range of tunable power-dividing ratios. This differential coupler uses only two varactors and can demonstrate tunable power-dividing ratio and quadrature
Pei-Ling Chi +2 more
doaj +1 more source
The multilevel trigger system of the DIRAC experiment [PDF]
, 2002 The multilevel trigger system of the DIRAC experiment at CERN is presented. It includes a fast first level trigger as well as various trigger processors to select events with a pair of pions having a low relative momentum typical of the physical process ...
A. Gorin +23 more
core +2 more sources
Ain Shams Engineering Journal, 2020 Design and simulation of an improved recycling folded cascode (RFC) operational transconductance amplifier (OTA) is presented. The new idea is based on minor changes in the conventional structure.
Ghader Yosefi
doaj +1 more source