Results 21 to 30 of about 229,346 (315)

Bias-Independent Inter-Modulation Method for Simultaneously Measuring Low-Frequency Modulation and Bias Half-Wave Voltages of Mach-Zehnder Modulators

open access: yesPhotonic Sensors, 2023
A bias-independent inter-modulation method is proposed and demonstrated for measuring low-frequency modulation and bias half-wave voltages of Mach-Zehnder modulators (MZMs).
Junfeng Zhu   +7 more
doaj   +1 more source

Passive Planar Microwave Devices

open access: yesApplied Sciences, 2022
Passive planar circuits play a key role in many RF/microwave applications, such as in wireless communications, medical instrumentation, and remote sensing [...]
Alejandro Javier Martínez-Ros   +1 more
doaj   +1 more source

High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview

open access: yesIEEE Journal of Microwaves, 2022
High temperature (high-Tc) superconductors (HTS) have found many applications in the last two decades. To microwave researchers and engineers, the ultra-low surface resistance of the thin-film HTS materials at microwave and millimeter frequencies and the
Ting Zhang, Jia Du, Y. Jay Guo
doaj   +1 more source

Tunable spin-wave delay line based on ferrite and vanadium dioxide [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2022
One of the key elements for modern microwave circuits is a delay line, which is widely utilized for the signal generation as well as processing. Spin-wave delay lines based on ferrite films provide a high delay time and small dimensions.
Nikitin, Aleksei Александрович   +3 more
doaj   +1 more source

Microfluidic Modules Integrated with Microwave Components—Overview of Applications from the Perspective of Different Manufacturing Technologies

open access: yesSensors, 2021
The constant increase in the number of microfluidic-microwave devices can be explained by various advantages, such as relatively easy integration of various microwave circuits in the device, which contains microfluidic components.
Laura Jasińska, Karol Malecha
doaj   +1 more source

Microwave Lens for Polar Molecules [PDF]

open access: yes, 2010
We here report on the implementation of a microwave lens for neutral polar molecules suitable to focus molecules both in low-field-seeking and in high-field-seeking states.
Gerard Meijer   +7 more
core   +2 more sources

A Large-Signal Model for Two-Dimensional Hole Gas Diamond MOSFET Based on the QPZD

open access: yesIEEE Access, 2019
A compact large-signal model for hydrogen-terminated (C-H) diamond metal-oxide field effect transistors (MOSFETs) is presented based on an improved quasi-physical zone division (QPZD) model.
Yu Fu   +10 more
doaj   +1 more source

New High-Efficiency Resonant O-Type Devices as the Promising Sources of Microwave Power

open access: yesEnergies, 2020
New O-type high-power vacuum resonant microwave devices are considered in this study: COM klystrons, CSM klystrons and resotrodes. All these devices can output a large amount of power (up to units of MW and higher) with an efficiency of up to 90%.
Andrei Baikov, Olga Baikova
doaj   +1 more source

Improved Empirical Formula Modeling Method Using Neuro-Space Mapping for Coupled Microstrip Lines

open access: yesMicromachines, 2023
In this paper, an improved empirical formula modeling method using neuro-space mapping (Neuro-SM) for coupled microstrip lines is proposed. Empirical formulas with correction values are used for the coarse model, avoiding a slow trial-and-error process ...
Shuxia Yan   +5 more
doaj   +1 more source

Microwave Dielectric Heating of Drops in Microfluidic Devices [PDF]

open access: yes, 2009
We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has ...
Brown, Keith A.   +5 more
core   +2 more sources

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