scholarly journals Effect of antenna configuration on power transfer efficiency for planar inductively coupled plasmas

2006 ◽  
Vol 55 (10) ◽  
pp. 5311
Author(s):  
Di Xiao-Lian ◽  
Xin Yu ◽  
Ning Zhao-Yuan
Keyword(s):  
Transfer Efficiency ◽  
Power Transfer ◽  
Inductively Coupled Plasmas ◽  
Inductively Coupled ◽  
Power Transfer Efficiency ◽  
Antenna Configuration ◽  
Coupled Plasmas

scholarly journals Improved Methodology to Estimate the Power Transfer Efficiency in an Inductively Coupled Radio Frequency Ion Source

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 29665-29676 ◽  
Author(s):  
Palak Jain ◽  
Mauro Recchia ◽  
Pierluigi Veltri ◽  
Marco Cavenago ◽  
Alberto Maistrello ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Ion Source ◽  
Transfer Efficiency ◽  
Power Transfer ◽  
Inductively Coupled ◽  
Power Transfer Efficiency

scholarly journals Erratum: Power Matching to Pulsed Inductively Coupled Plasmas [J. Appl. Phys. 127, 133302 (2020)]

2020 ◽  
Vol 128 (8) ◽  
pp. 089901
Author(s):  
Chenhui Qu ◽  
Steven J. Lanham ◽  
Steven C. Shannon ◽  
Sang Ki Nam ◽  
Mark J. Kushner
Keyword(s):  
Inductively Coupled Plasmas ◽  
Inductively Coupled ◽  
Power Matching ◽  
Coupled Plasmas

Etching characteristics of ZnO thin films in chlorine-containing inductively coupled plasmas

2006 ◽  
Vol 83 (2) ◽  
pp. 328-335 ◽  
Author(s):  
S.W. Na ◽  
M.H. Shin ◽  
Y.M. Chung ◽  
J.G. Han ◽  
S.H. Jeung ◽  
...  
Keyword(s):  
Thin Films ◽  
Zno Thin Films ◽  
Inductively Coupled Plasmas ◽  
Inductively Coupled ◽  
Coupled Plasmas

scholarly journals Maximizing Transfer Efficiency with an Adaptive Wireless Power Transfer System for Variable Load Applications

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1417
Author(s):  
Jung-Hoon Cho ◽  
Byoung-Hee Lee ◽  
Young-Joon Kim
Keyword(s):  
Loading Condition ◽  
Wireless Power Transfer ◽  
Input Voltage ◽  
Transfer Efficiency ◽  
Maximum Efficiency ◽  
Variable Load ◽  
Power Transfer ◽  
Wireless Power ◽  
Variable Loading ◽  
Power Transfer Efficiency

Electronic devices usually operate in a variable loading condition and the power transfer efficiency of the accompanying wireless power transfer (WPT) method should be optimizable to a variable load. In this paper, a reconfigurable WPT technique is introduced to maximize power transfer efficiency in a weakly coupled, variable load wireless power transfer application. A series-series two-coil wireless power network with resonators at a frequency of 150 kHz is presented and, under a variable loading condition, a shunt capacitor element is added to compensate for a maximum efficiency state. The series capacitance element of the secondary resonator is tuned to form a resonance at 150 kHz for maximum power transfer. All the capacitive elements for the secondary resonators are equipped with reconfigurability. Regardless of the load resistance, this proposed approach is able to achieve maximum efficiency with constant power delivery and the power present at the load is only dependent on the input voltage at a fixed operating frequency. A comprehensive circuit model, calculation and experiment is presented to show that optimized power transfer efficiency can be met. A 50 W WPT demonstration is established to verify the effectiveness of this proposed approach.

scholarly journals Magnetic nozzle radiofrequency plasma thruster approaching twenty percent thruster efficiency

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kazunori Takahashi
Keyword(s):  
Magnetic Field ◽  
Electric Propulsion ◽  
Transfer Efficiency ◽  
Rf Plasma ◽  
Power Transfer ◽  
Rf Power ◽  
Plasma Production ◽  
Magnetic Nozzle ◽  
Plasma Thruster ◽  
Power Transfer Efficiency

AbstractDevelopment of a magnetic nozzle radiofrequency (rf) plasma thruster has been one of challenging topics in space electric propulsion technologies. The thruster typically consists of an rf plasma source and a magnetic nozzle, where the plasma produced inside the source is transported along the magnetic field and expands in the magnetic nozzle. An imparted thrust is significantly affected by the rf power coupling for the plasma production, the plasma transport, the plasma loss to the wall, and the plasma acceleration process in the magnetic nozzle. The rf power transfer efficiency and the imparted thrust are assessed for two types of rf antennas exciting azimuthal mode number of $$m=+1$$ m = + 1 and $$m=0$$ m = 0 , where propellant argon gas is introduced from the upstream of the thruster source tube. The rf power transfer efficiency and the density measured at the radial center for the $$m=+1$$ m = + 1 mode antenna are higher than those for the $$m=0$$ m = 0 mode antenna, while a larger thrust is obtained for the $$m=0$$ m = 0 mode antenna. Two-dimensional plume characterization suggests that the lowered performance for the $$m=+1$$ m = + 1 mode case is due to the plasma production at the radial center, where contribution on a thrust exerted to the magnetic nozzle is weak due to the absence of the radial magnetic field. Subsequently, the configuration is modified so as to introduce the propellant gas near the thruster exit for the $$m=0$$ m = 0 mode configuration and the thruster efficiency approaching twenty percent is successfully obtained, being highest to date in the kW-class magnetic nozzle rf plasma thrusters.

Sign in / Sign up

Export Citation Format

Share Document