Results 1 to 10 of about 3,063 (145)
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
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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
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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
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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
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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
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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
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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
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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
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Frequency Reconfigurable Split Ring Antenna for LTE And WiMAX Applications [PDF]
International Journal of Electronics and Telecommunications, 2020 This paper presents frequency reconfigurable dual band antenna for WiMAX and LTE 2500 band applications using four PIN diode switches. The antenna is compact in size with dimensions of 30 x 30 x 0.8 mm3 and designed on FR-4 dielectric substrate with a ...
B.T.P. Madhav +5 more
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An Active Metamaterial Absorber With Ultrawideband Continuous Tunability
IEEE Access, 2022 In this paper, an active metamaterial (MM) absorber loaded with PIN diodes is proposed. By adjusting the bias currents of PIN diodes to change the value of the introduced equivalent resistance, the Q factors of multiple resonances of the whole structure ...
Zonghuan Wu +3 more
doaj +1 more source