Results 31 to 40 of about 40,433 (286)

Design and analysis of reconfigurable filters employing varactor and PIN diodes [PDF]

Engineering and Technology Journal
This work presents a comprehensive and comparative study on reconfigurable/tunable microstrip filters, aiming to analyze and understand the impact of varactors, PIN diodes, lumped capacitors, and inductors on the overall filter performance.
Salah Mahdi, Mithaq Raheema, Raaed Hammed   +2 more
doaj   +1 more source

On the application of novel high temperature oxidation processes to enhance the performance of high voltage silicon carbide PiN diodes [PDF]

In this paper, the application of a combined high temperature (1550°C) thermal oxidation / annealing process has been applied to 4H-SiC PiN diodes with 110 μm thick n-type drift regions, for the purpose of increasing the carrier lifetime in the ...
Burrows, S. E. (Susan E.), Fisher, Craig A., Gammon, P. M., Hamilton, Dean P., Jennings, M. R., Li, Fan, Mawby, P. A. (Philip A.), Pérez-Tomás, Amador, Sharma, Yogesh K., Thomas, Stephen M.   +9 more
core   +1 more source

Mechanical Stress Effects on 4H-Silicon Carbide Power Diodes

IEEE Open Journal of Power Electronics
This study discusses the effect of stress on 4H-silicon carbide (4H-SiC) power diodes using numerical simulations. Two power diodes were evaluated; namely, a 600 V PiN diode and 1.8 kV junction barrier Schottky (JBS) diode.
Takaya Sugiura, Kazuma Yamashita, Nobuhiko Nakano   +2 more
doaj   +1 more source

Demonstration of AlGaAs/GeSn p-i-n diodes [PDF]

APL Electronic Devices
This study reports the fabrication and characterization of an Al0.3Ga0.7As/Ge0.853Sn0.147/GeSn p-i-n double heterostructure (DHS) diode using a grafting approach for advanced optoelectronic applications, building upon prior work on the band alignment of ...
Yang Liu, Yiran Li, Sudip Acharya, Jie Zhou, Jiarui Gong, Qingxiao Wang, Alireza Abrand, Yi Lu, Daniel Vincent, Samuel Haessly, TienKhee Ng, Parsian K. Mohseni, Boon S. Ooi, Shui-Qing Yu, Zhenqiang Ma   +14 more
doaj   +1 more source

PIN diode driver for NMR and MRI [PDF]

Journal of Magnetic Resonance, 2019
Designing custom coils for magnetic resonance systems, such as nuclear magnetic resonance (NMR) spectrometers and magnetic resonance imaging (MRI) scanners, often entails using non-standard configurations of the transmit-receive (T/R) switch and Q-spoiling circuits.
Johansen, D.H., Albannay, M.M., Petersen, J.R., Zhurbenko, V., Ardenkjær-Larsen, J.H.   +4 more
openaire   +3 more sources

Microstrip 3-Bit Fractal-based Phase Shifter

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2022
This paper presents the implementation of a 3-bit microstrip fractal-based phase shifter operating in the 430 MHz to 470 MHz frequency range. The fractal structure is used to confine different delay line lengths in the same area due to the space-filling ...
L. P. Pontes, E. M. F. de Oliveira, C. P. N. Silva, A. G. Barboza, M. T. de Melo, Ignacio Llamas-Garro   +5 more
doaj   +1 more source

PIN Silicon Diodes as EXAFS Signal Detectors

Journal of Synchrotron Radiation, 1996
The properties of PIN silicon diodes as X-ray detectors for EXAFS measurements with synchrotron radiation have been investigated. Electronic stability, linearity and noise current have been analyzed. The effects of diffraction peaks resulting from the crystalline nature of the diodes have been minimized by mounting the diodes on a simple device that ...
Dalba, Giuseppe, Fornasini, Paolo, Y. Soldo, F. Rocca   +3 more
openaire   +3 more sources

Calibration of Polarization Fields and Electro-Optical Response of Group-III Nitride Based c-Plane Quantum-Well Heterostructures by Application of Electro-Modulation Techniques [PDF]

, 2019
The polarization fields and electro-optical response of PIN-diodes based on nearly lattice-matched InGaN/GaN and InAlN/GaN double heterostructure quantum wells grown on (0001) sapphire substrates by metalorganic vapor phase epitaxy were experimentally ...
Papadimitriou, Dimitra N.
core   +1 more source

Cost-Effective Design of Polarization and Bandwidth Reconfigurable Millimeter-Wave Loop Antenna

Sensors, 2023
A singly fed reconfigurable circular loop antenna is proposed for millimeter-wave (mmWave) communication systems. This antenna’s distinctive feature lies in its capacity to adjust both polarization and bandwidth characteristics, a capability made ...
Rawad Asfour, Salam K. Khamas, Edward A. Ball   +2 more
doaj   +1 more source

An Electronically Reconfigurable Patch Antenna Design for Polarization Diversity with Fixed Resonant Frequency [PDF]

, 2015
In this paper, an electronically polarization reconfigurable circular patch antenna with fixed resonant frequency operating at Wireless Local Area Network (WLAN) frequency band (2.4-2.48 GHz) is presented. The structure of the proposed design consists of
Gardner, P., Hamid, M. R., Majid, H. A., Osman, M. N., Rahim, M. K. A., Yusoff, M. F. M.   +5 more
core   +2 more sources