Results 11 to 20 of about 236,890 (260)

Low-Voltage Stress Buck-Boost Converter With a High-Voltage Conversion Gain

open access: yesIEEE Access, 2020
The conventional buck-boost converter has the advantages of simple structure, low cost, and the capability to achieve both voltage step-up and down. However, due to the negative impacts of the parasitic parameters of the device, the voltage conversion ...
Binxin Zhu   +4 more
doaj   +1 more source

A 24 GHz up-converter mixer design with balun circuit

open access: yesDianzi Jishu Yingyong, 2018
Based on the structure of Gilbert,a 24 GHz up-conversion mixer was designed with three-piece balun circuit on-chip. Using the gm/I method to coordinate the transistor size to obtain better conversion gain, isolation degree and circuit dissipation power ...
Zhou Zhengxuan   +3 more
doaj   +1 more source

Conversion gain of m.e.s.f.e.t. drain mixers

open access: yesElectronics Letters, 1979
A theoretical analysis of the gain properties of m.e.s.f.e.t. drain mixers is presented. The m.e.s.f.e.t. model includes the nonlinearity of both the transconductance and the drain resistance. For a special case, a simple analytical expression for the gain is given. Numerical results for a typical example are briefly presented as an illustration.
Günther Begemann, Arne Jacob
openaire   +1 more source

A high‐linearity high‐gain up‐conversion mixer for 24 GHz automotive radar applications

open access: yesElectronics Letters, 2021
This paper presents a high conversion gain and highly linearised up‐conversion mixer designed in 65 nm CMOS process, which translates intermediate frequency of 2.4 GHz and local oscillator frequency of 21.6–24 GHz in radio frequency.
A. Siddique, T. S. Delwar, J. Y. Ryu
doaj   +1 more source

Negative differential resistance (NDR) frequency conversion with gain [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 1993
The dependence of the conductance of negative differential resistance (NDR) devices in the presence of an RF signal of varying amplitude has been theoretically analyzed. Variable absolute negative conductance has been observed in both unbiased resonant tunneling devices and biased tunnel diode when the applied pump power is within the correct range ...
R.J. Hwu, A. Djuandi, S.C. Lee
openaire   +2 more sources

Robust Gain Scheduling Control for Wave Energy Conversion

open access: yesIFAC-PapersOnLine, 2020
Abstract Enhancing the power performance of wave energy converters is undoubtedly a step required to reduce the cost of energy from this source of renewable energy, thereby making it competitive to other sources of renewable energy. Increasing the power absorption can be achieved by utilizing smart and advanced control algorithms.
Francesco Ferri, Morten B. Kramer
openaire   +2 more sources

A 1.2V, low-power, and high linear UWB down-conversion CMOS mixer

open access: yesEngineering and Applied Science Research, 2021
A low voltage, high linearity and gain withlow powerultra-wideband (UWB) CMOS mixer in the RF receiver is proposed. This mixer is designed for a standard of 802.11 for use in Wi-Fi communications.
Mostafa Yargholi, Farshad Darvishi
doaj  

Performance, carcass traits and economic evaluation of the replacement of corn whole grain by pelleted soybean hulls in the feeding of feedlot lambs

open access: yesSemina: Ciências Agrárias, 2015
This work was carried out with the objective of evaluating the effects of different levels of replacement of whole grain corn by pelleted soybean hulls in high concentrated diet, without long fiber use, on intake, productive performance and economical ...
Tiago Galafassi Zarpelon   +9 more
doaj   +1 more source

Conversion gain and noise in a Josephson mixer [PDF]

open access: yesRevue de Physique Appliquée, 1974
Fundamental mixing at 36 GHz in non-hysteretic Nb point contacts has been observed with overall conversion efficiencies in the range 0.33 ≤ η ≤ 4 and mixer noise temperatures in the neighborhood of TM ~ 200 K. The observed conversion efficiencies are in good agreement with the Resistively Shunted Junction model.
Taur, Y., Claassen, J.H., Richards, P.L.
openaire   +1 more source

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