Results 21 to 30 of about 220,343 (297)
Coupling effects in array‐fed reflector antennas with digital beamforming
IET Microwaves, Antennas & Propagation, 2021 Many modern microwave systems, for example, in the field of satellite communications, remote sensing for Earth observation or radio astronomy, employ reflector antennas with beam‐shaping capabilities.
Sigurd Huber +3 more
doaj +1 more source
N-Type Printed Organic Source-Gated Transistors with High Intrinsic Gain
Nanomaterials, 2022 Source-gated transistors (SGTs) are emerging devices enabling high-gain single-stage amplifiers with low complexity. To date, the p-type printed organic SGT (OSGT) has been developed and showed high gain and low power consumption.
Yudai Hemmi +5 more
doaj +1 more source
Semiconductor optical amplifiers: performance and applications in optical packet switching [Invited] [PDF]
, 2004 Semiconductor optical amplifiers (SOAs) are a versatile core technology and the basis for the implementation of a number of key functionalities central to the evolution of highly wavelength-agile all-optical networks.
Andonovic, I. +2 more
core +2 more sources
Lock-in Amplifier Dairy Sensor for Detection of Ciprofloxacin
IEEE Access, 2023 This work introduces a sensor for dairy antibiotic detection of ciprofloxacin in milk. We provide an important tool for antibiotic detection in milk and the main contributions of this work are as follows.
Jasen Devasagayam +4 more
doaj +1 more source
The Class-E/F Family of ZVS Switching Amplifiers [PDF]
, 2003 A new family of switching amplifiers, each member having some of the features of both class E and inverse F, is introduced. These class-E/F amplifiers have class-E features such as incorporation of the transistor parasitic capacitance into the circuit ...
Aoki, Ichiro +3 more
core +1 more source
The Journal of Engineering, 2019 The micro-displacement amplifier has been widely used to magnify the outputs of piezoelectric actuators for some large displacement required applications, and the amplification and frequency are the most important elements for designing the amplifying ...
Hai Zheng +6 more
doaj +1 more source
Fiber Amplifiers and Fiber Lasers Based on Stimulated Raman Scattering: A Review
Micromachines, 2020 Nowadays, in fiber optic communications the growing demand in terms of transmission capacity has been fulfilling the entire spectral band of the erbium-doped fiber amplifiers (EDFAs).
Luigi Sirleto, Maria Antonietta Ferrara
doaj +1 more source
Modeling and Simulation of Monolithic Single-Supply Power Operational Amplifiers
Energies, 2021 In this paper a simple PSpice (Personal Simulation Program with Integrated Circuit Emphasis) macro-model was developed, and verified for monolithic power operational amplifiers operated with a single-supply voltage.
Ivailo Milanov Pandiev
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A SIMPLE METHOD FOR IMPROVING OUT-OF-BAND HIGH-FREQUENCY STABILITY OF RADIO FREQUENCY AMPLIFIERS [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. Methods for determining and ensuring the stability of radio frequency (RF) amplifiers have been progressing quite actively over the past decades. However, most of them are not convenient for practical use.
A. D. Khristenko
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Design of detection terminal for active millimetre-wave imaging
The Journal of Engineering, 2019 The diode is used as the detection unit to receive the millimetre-wave signal directly. A circuit is made with an operational amplifier OP27 to amplify the signal. The magnification of the OP27 circuit is stable at 100
Hanxue Mei +3 more
doaj +1 more source