Results 11 to 20 of about 43,625 (354)
A separated RC-IGBT with PIN and MPS diode
IEICE Electronics Express, 2015 Weizhong Chen, Wei Wang, Xi Qu
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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
IEEE Access, 2023 A new adaptive frequency selective surface (AFSS) has been presented for electromagnetic (EM) shielding applications. Passive EM shields lack reconfigurability which severely limits their application.
Mohammed Abdullah Hussaini +5 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. +4 more
openaire +2 more sources
IEEE Access, 2020 An active reconfigurable ultra-wideband antenna exhibiting complementary frequency notched and narrowband responses is proposed in this paper. The frequency responses are achieved on a CPW fed single element printed monopole antenna loaded with a pair of
Chinmoy Saha +4 more
doaj +1 more source
Frontiers in Physics, 2021 A substrate integrated waveguide (SIW) based spoof surface plasmon polariton (SSPP) is proposed for the design of bandpass filter (BPF). The left and right edge cutoff frequencies of the passband can be easily adjusted by changing the parameters of SIW ...
Longfei Tan +4 more
doaj +1 more source
A Compact Circular Loop Inspired Frequency and Bandwidth Reconfigurable Antenna for 4G, 5G, and X- Band Applications [PDF]
Radioengineering, 2020 This paper presents a printed patch antenna design to achieve frequency and bandwidth reconfigurability. Two RF PIN diodes are simultaneously operated to achieve the multi-reconfigurability operation.
M. Rasool +4 more
doaj
4.5-/4.9-GHz-Band Selective High-Efficiency GaN HEMT Power Amplifier by Characteristic Impedance Switching [PDF]
, 2018 A 4.5-/4.9-GHz band-selective GaN HEMT high-efficiency power amplifier has been designed and evaluated for next-generation wireless communication systems.
Kazuhiko HONJO +2 more
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An N-bit digitally variable ultra wideband pulse generator for GPR and UWB applications [PDF]
, 2006 This paper presents a low-cost Ultra Wideband (UWB) pulse generator that can vary the pulse duration digitally by using a Step Recovery Diode (SRD), microstrip transmission lines and PIN diodes.
Bennett +10 more
core +1 more source
Reconfigurable dual band microstrip patch antenna for software defined radio applications [PDF]
, 2010 In this paper, a reconfigurable microstrip patch antenna with RF pin diode switches is implemented for dual band of 2.4 GHz and 5.6 GHz Software Defined Radio (SDR) applications.
Croq +7 more
core +3 more sources