Results 81 to 90 of about 395,266 (293)

Design of Broadband Aperture-Coupled Microstrip Antenna Arrays With Differential Feeding

IEEE Access
This paper proposes the design of broadband microstrip antennas fed by differential microstrip lines. The designed broadband antennas are composed of two capacitively coupled rectangular stacked patches excited through a dog-bone shaped aperture by short-
Ignacio M. Delgado-Lozano, Armando Fernandez-Prieto, Vicente Losada, Rafael R. Boix, Francisco Medina   +4 more
doaj   +1 more source

Simple Scheme for the Implementation of Low Voltage Fully Differential Amplifiers without Output Common-Mode Feedback Network

Journal of Low Power Electronics and Applications, 2020
A simple scheme to implement class AB low-voltage fully differential amplifiers that do not require an output common-mode feedback network (CMFN) is introduced. It has a rail to rail output signal swing and high rejection of common-mode input signals. It
Mario Renteria-Pinon, Jaime Ramirez-Angulo, Alejandro Diaz-Sanchez   +2 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

2.4-GHz CMOS Power Amplifier With Common-Mode Self-Rejection Technique to Suppress Even Harmonics

IEEE Access
In this study, we propose a common-mode self-rejection (CMSR) technique to improve the linearity of CMOS differential power amplifiers. The proposed CMSR technique is implemented through a matching network consisting of a Guanella transformer between the
Donghwan Seo, Jaeyong Lee, Jinho Yoo, Seongjin Jang, Changkun Park   +4 more
doaj   +1 more source

Common Mode Rejection Calculations on the Debuncher Upgrade [PDF]

, 2001
The 4-8 GHz Transverse Debuncher Cooling Systems are power limited. Misalignments and imperfections in the transverse pickup arrays will generate a longitudinal signal in addition to the betatron signal. This longitudinal signal can use up a significant fraction of the precious TWT power if the imperfections are large enough.
openaire   +2 more sources

Development of a Low-Noise High Common-Mode-Rejection Instrumentation Amplifier [PDF]

Several previously used instrumentation amplifier circuits were examined to find limitations and possibilities for improvement. One general configuration is analyzed in detail, and methods for improvement are enumerated.
Blalock, T. V., Kennedy, E. J., Rush, Kenneth   +2 more
core   +1 more source

Adenovirus infection in pediatric liver transplant recipients [PDF]

, 1992
A retrospective review of adenoviral infection in pediatric liver transplant recipients was done at Children’s Hospital of Pittsburgh to define its epidemiology and clinical importance.
Green, M, Michaels, MG, Starzl, TE, Wald, ER   +3 more
core   +2 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

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, Hong-Min Lin, Chun-Pin Chien   +2 more
doaj   +1 more source

Common Mode Rejection of Stack Tail Kicker Hybrids [PDF]

, 1985
The betatron heating of the core is commonly agreed to be due to a undesired difference mode in the kickers. This could be due to tolerances and mistakes in the kickers or in the hydrids which ideally drive the kickers in the sum mode. The purpose of this note is to estimate the effect of the latter.
openaire   +2 more sources