Results 1 to 10 of about 3,273 (164)
Continuous Resonance Tuning without Blindness by Applying Nonlinear Properties of PIN Diodes [PDF]
Sensors, 2021 Metamaterial antennas consisting of periodical units are suitable for achieving tunable properties by employing active elements to each unit. However, for compact metamaterials with a very limited number of periodical units, resonance blindness exists ...
Yong Luo +4 more
doaj +2 more sources
Carrier lifetime modulation on current capability of SiC PiN diodes in a pulsed system [PDF]
Discover Nano, 2023 Silicon carbide (SiC) PiN diode has shown substantial promise as the freewheel diode for switch protection in a pulsed system. In this paper, we investigate the carrier lifetime (τ) modulation on pulsed current capability of SiC PiN diodes.
Xingliang Xu +6 more
doaj +2 more sources
Suppression of stacking-fault expansion in 4H-SiC PiN diodes using proton implantation to solve bipolar degradation [PDF]
Scientific Reports, 2022 4H-SiC has been commercialized as a material for power semiconductor devices. However, the long-term reliability of 4H-SiC devices is a barrier to their widespread application, and the most important reliability issue in 4H-SiC devices is bipolar ...
Masashi Kato +4 more
doaj +2 more sources
Effect of Ultraviolet Irradiation on 4H-SiC PiN Diodes Characteristics [PDF]
Nanoscale Research Letters, 2021 In this paper, the effect of ultraviolet (UV) irradiation on the static characteristics of high voltage 4H-SiC PiN is investigated. No significant change is observed in the forward on state characteristic of 4H-SiC PiN diodes before and after ultraviolet
Xingliang Xu +6 more
doaj +2 more sources
X-Shaped Dual-Band Slot Antenna with Simultaneous Pattern Diversity and Frequency Tuning [PDF]
SensorsThis paper proposes a frequency-reconfigurable and active beam-switching antenna based on an X-shaped slot array integrated with a diode-based switching network.
Youngjin Cho, Youngje Sung
doaj +2 more sources
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 ...
Paolo Fornasini +2 more
exaly +4 more sources
A Bandwidth Reconfigurable Planar Antenna for UWB-Applications [PDF]
E3S Web of Conferences, 2022 A reconfigurable planar antenna design bandwidth operating in ultra wide band (UWB) applications with compact dimensions of (50 × 25× 1) mm3 is proposed.
Bikrat Mohamed, Bri Seddik
doaj +1 more source
Frontiers in Materials, 2022 This study proposes a dual-polarized frequency-selective rasorber (FSR) with a switchable wide passband. The FSR is made up of two layers: the first is a lossy frequency-selective surface (FSS), which is made up of meander lines and lumped resistors that
He Wang, Xiangkun Kong, Xinyu Zhang
doaj +1 more source
Wideband frequency tunable metamaterial absorber by splicing multiple tuning ranges
Results in Physics, 2021 A band-splicing strategy is proposed to greatly extend the tunable bandwidth of metamaterial absorbers (MMAs) based on circular split-rings (CSRs) containing varactors.
Tianlong Wu +3 more
doaj +1 more source
International Journal of Polymer Science, 2022 Different semiconductor materials have been used for the fabrication of PIN diodes such as Si, Ge, GaAs, SiC-3C, SiC-4H, and InAs. These different semiconductor materials show different characteristics and advantages such as SiC-4H is ultrafast switch ...
Sonia Sharma +5 more
doaj +1 more source