Results 271 to 280 of about 5,206,901 (306)

Wide Locking-Range Frequency Multiplier by 1.5 Employing Quadrature Injection-Locked Frequency Tripler With Embedded Notch Filtering

IEEE transactions on microwave theory and techniques, 2019
The frequency multiplier with broadband frequency divide-by-2 followed by wide locking-range frequency tripler is presented in this article. The frequency divide-by-2 provides the quadrature signals with good mismatch performance across the entire ...
Saebyeok Shin, D. R. Utomo, Hyunki Jung, Seok-Kyun Han, Jusung Kim, Sang-Gug Lee   +5 more
semanticscholar   +1 more source

Frequency multiplier based on back-gated graphene FETs with M-shaped resistance characteristics

Journal of Applied Physics, 2019
The ambipolar graphene field-effect transistors (GFETs) usually exhibit Λ-shaped resistance versus gate voltage characteristics (R-Vg curve) with the n- and p-type regions switching at the neutrality points of graphene. However, M-shaped R-Vg curves were
Pei Peng, Tian Zhongzheng, Li Muchan, Wang Zidong, Liming Ren, Yunyi Fu   +5 more
semanticscholar   +1 more source

A Wide-Input-Range High-Efficiency Step-Down Power Factor Correction Converter Using a Variable Frequency Multiplier Technique

IEEE transactions on power electronics, 2018
This paper demonstrates a two-stage implementation of a step-down power factor preregulator design that achieves a high efficiency across the entire universal input voltage range ( $\text{85}\text{--}\text{265}\,\textrm {V}_{\textrm {rms}}$) for an ...
Lei Gu, Wei Liang, Max Praglin, S. Chakraborty, J. Rivas-Davila   +4 more
semanticscholar   +1 more source

220 – 265 GHz Active x6 Frequency Multiplier MMIC with InP HEMT Technology

Intelligent Memory Systems, 2018
A $220\ -\ 265\ \mathrm{GHz}\ \times 6$ active frequency multiplier MMIC is presented in this paper. The MMIC was fabricated in SO-nm-gate InP HEMT technology. The frequency multiplier consists of a frequency tripier, 120-GHz amplifier, frequency doubler,
Kangseop Leel, H. Hamada, Hideaki Matsuzakr, H. Nosaka, Ho-Jin Song   +4 more
semanticscholar   +1 more source

Ultra-Broadband Frequency Multiplier MMICs for Communication and Radar Applications

European Microwave Integrated Circuits Conference, 2018
Two H-band frequency multiplier MMICs, a frequency doubler and tripler, are presented. Both circuits were characterized over a frequency range of 235 − 285 GHz. The 3-dB bandwidth of both chips exceeds the measurement range of 50 GHz.
Christopher M. Grӧtsch, S. Wagner, A. Leuther, D. Meier, I. Kallfass   +4 more
semanticscholar   +1 more source

A Balunless Frequency Multiplier With Differential Output by Current Flow Manipulation

IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2018
A balunless frequency doubler (FD) architecture which can provide differential output without any additional balun required is proposed in this paper.
Chun-Hsing Li, Wei-min Wu
semanticscholar   +1 more source

Self-Consistent Electro-Thermal Approach for Terahertz Frequency Multiplier Design

Journal of Infrared, Millimeter and Terahertz Waves, 2020
C. Pérez-Moreno, J. Grajal
semanticscholar   +1 more source

Nonreciprocity in acoustic and elastic materials

Nature Reviews Materials, 2020
Hussein Nassar, Behrooz Yousefzadeh, Romain Fleury   +2 more
exaly  

Structure and Dynamics of Interfacial Peptides and Proteins from Vibrational Sum-Frequency Generation Spectroscopy

Chemical Reviews, 2020
Saman Hosseinpour, Steven J Roeters, Mischa Bonn   +2 more
exaly  

Borates: A Rich Source for Optical Materials

Chemical Reviews, 2021
Miriding Mutailipu, Kenneth Poeppelmeier
exaly