Results 11 to 20 of about 12,181 (273)

Integration of sol-gel frequency agile materials for tunable RF devices [PDF]

open access: yes, 2012
This thesis focuses on the use of high permittivity tunable dielectrics and more specifically sol-gel ferroelectric thin films for low cost, high performance tunable devices such as varactors and filters at RF and microwave frequencies.
Fragkiadakis, Charalampos
core   +7 more sources

Travelling-Wave Modeling of Dynamics of Ultrafast Reflective-Intracavity-Filter Tunable Fabry-Pérot Lasers for Optical Coherent Tomography [PDF]

open access: yes, 2011
The dynamics of Fabry-Pérot external-cavity laser diodes frequency-swept at a high rate using a tunable intracavity filter are investigated by travelling-wave modelling. The effect of broad and narrow bandwidth filter properties and linewidth enhancement
Zhang, Lixiong
core   +5 more sources

Design and applications of tunable analog BiCMOS circuits

open access: yes, 2022
S.165-168In this communication we will discuss design, merits, and applications of tunable analog BiCMOS circuits. Although the BiCMOS technology offers higher design flexibility due to presence of more types of active devices than the standard CMOS or ...
Hosticka, Bedrich J.   +2 more
core   +3 more sources

Modeling of Wireless Sensor Nodes Powered by Tunable Energy Harvesters: HDL-Based Approach [PDF]

open access: yes, 2012
This paper presents a hardware description language (HDL) approach to modeling a complete wireless sensor node system powered by a tunable vibration energy harvester including both energy generation and consumption.
Merrett, Geoff V.   +5 more
core   +1 more source

Photoinduced Tunable and Reconfigurable Electronic and Photonic Devices Using a Silk‐Based Diffractive Optics Platform

open access: yesAdvanced Science, 2020
A remarkable feature of modern electronic and photonic devices is the ability to maintain their geometric and physical properties in various circumstances for practical applications.
Xiaoqing Cai, Zhitao Zhou, Tiger H. Tao
doaj   +1 more source

Anisotropic impedance surfaces activated by incident waveform

open access: yesNanophotonics, 2022
Anisotropic impedance surfaces have been used to control surface wave propagation, which has benefited applications across a variety of fields including radio-frequency (RF) and optical devices, sensing, electromagnetic compatibility, wireless power ...
Homma Haruki   +5 more
doaj   +1 more source

Ultra-broad bandgap metal-insulator-metal waveguide filter with symmetrical stubs and defects

open access: yesResults in Physics, 2020
An ultra-broad bandgap plasmonic based filter that consists of a metal-insulator-metal waveguide with symmetrical stubs and defects is designed and investigated for the first time.
Yuan-Fong Chou Chau   +2 more
doaj   +1 more source

Multifunctional current-mode filter with dual-parameter control of the pole frequency

open access: yesAdvances in Electrical and Computer Engineering, 2016
This paper presents a multifunctional current-mode filter with dual-parameter control of the pole frequency. The filter is of the second order, of single-input triple-output (SITO) type and a required type of the response (low pass, inverting band pass,
JERABEK, J.   +4 more
doaj   +1 more source

Constant-depth circuits for Boolean functions and quantum memory devices using multi-qubit gates [PDF]

open access: yesQuantum
We explore the power of the unbounded Fan-Out gate and the Global Tunable gates generated by Ising-type Hamiltonians in constructing constant-depth quantum circuits, with particular attention to quantum memory devices.
Jonathan Allcock   +4 more
doaj   +1 more source

Automation of S-parameters measurements of high-power microwave transistors in a contact device with tunable strip matching circuits [PDF]

open access: yesITM Web of Conferences, 2019
In the practice by microwave power transistor amplifiers developing, the variable load method is usually used to determine the impedances of matching circuits in the complex conjugate matching mode. This solution involves the use of expensive equipment - coaxial impedance tuners and contact devices for mounting transistors in low impedance strip lines.
Evseev Vladimir   +5 more
openaire   +2 more sources

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