Results 21 to 30 of about 8,259 (312)

4H-SiC Double-Trench MOSFET with Side Wall Heterojunction Diode for Enhanced Reverse Recovery Performance

open access: yesEnergies, 2020
In this study, a novel 4H-SiC double-trench metal-oxide semiconductor field-effect transistor (MOSFET) with a side wall heterojunction diode is proposed and investigated by conducting numerical technology computer-aided design simulations.
Junghun Kim, Kwangsoo Kim
doaj   +1 more source

1.4 GHz Low-Cost PIN Diode Phase Shifter for ${L}$ -Band Radiometer Antenna

open access: yesIEEE Access, 2019
A 1.4 GHz 4-bit positive intrinsic negative (PIN) diode phase shifter with compact reflective loads for an L-band soil moisture measuring radiometer phased array antenna has been successfully designed.
Kim Tuyen Trinh   +3 more
doaj   +1 more source

Caracterização numérica do efeito do diodo PIN em superfícies seletivas em frequência reconfiguráveis utilizando o Método Iterativo das Ondas

open access: yesRevista Principia, 2019
Numerical characterization is an important design step, since it minimizes the construction of prototypes and optimizes results. The choice of the technique to be used is an aspect of fundamental importance.
Alfredo Gomes Neto   +1 more
doaj   +1 more source

A Compact Frequency Reconfigurable Antenna for LTE Mobile Handset Applications

open access: yesInternational Journal of Antennas and Propagation, 2015
A compact (8 × 62 × 5 mm3; 2.48 cc) frequency reconfigurable antenna that uses electrical switching with PIN diodes is proposed for the low frequency LTE band (699 MHz–862 MHz), high frequency LTE band (2496 MHz–2690 MHz), GSM850/900 bands (824 MHz–960 ...
Munyong Choi   +5 more
doaj   +1 more source

A Reconfigurable Frequency Selective Surface for Wi-Fi Application [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023
This work presents the development of a reconfigurable frequency selective surface (RFSS) for application in the 2400-2483.5 MHz band, standard IEEE 802.11b/g/n (Wi-Fi).
Thamyris da Silva Evangelista   +4 more
doaj   +1 more source

Iron loss evaluation of magnetic materials excited by a SiC inverter with a Schottky barrier diode wall-integrated trench MOSFET

open access: yesAIP Advances, 2020
This study examines the impact of the different diode characteristics on the magnetic hysteretic and iron loss properties of a conventional non-oriented (NO) silicon steel sheet core under silicon carbide (SiC) inverter excitation.
Atsushi Yao   +5 more
doaj   +1 more source

Electronically Switchable Broadband Metamaterial Absorber

open access: yesScientific Reports, 2017
In this study, the novel electronically switchable broadband metamaterial absorber, using a PIN diode, is proposed. The unit cell of the absorber was designed with a Jerusalem-cross resonator and an additive ring structure, based on the FR-4 dielectric ...
Dongju Lee, Heijun Jeong, Sungjoon Lim
doaj   +1 more source

The Linear Fitting Method for Model of PIN Array Receiver in Space Optical Communication

open access: yesInternational Journal of Optics, 2022
We have proposed PIN array as receiver in space optical communication and adopted the double diode model, the widely accepted solar energy output theory, to study its characteristics of output current and voltage.
H. Qinggui
doaj   +1 more source

Design and Realization of an UHF Frequency Reconfigurable Antenna for Hybrid Connectivity LPWAN and LEO Satellite Networks

open access: yesSensors, 2021
UHF satellite communication for Internet of Things (IoT) technology is rapidly emerging in monitoring applications as it offers the possibility of lower-costs and global coverage.
Abdellatif Bouyedda   +2 more
doaj   +1 more source

Passive parasitic UWB antenna capable of switched beam‐forming in the WLAN frequency band using an optimal reactance load algorithm

open access: yesETRI Journal, 2019
We propose a switched beam‐forming antenna that satisfies not only ultra‐wideband characteristics but also beam‐forming in the WLAN frequency band using an ultra‐wideband antenna and passive parasitic elements applying a broadband optimal reactance load ...
Jung‐Nam Lee   +3 more
doaj   +1 more source

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