Design of the 1.5 MW, 30-96 MHz ultra-wideband 3 dB high power hybrid coupler for Ion Cyclotron Resonance Frequency (ICRF) heating in fusion grade reactor

2016 ◽  
Vol 87 (1) ◽  
pp. 014703 ◽  
Author(s):  
Rana Pratap Yadav ◽  
Sunil Kumar ◽  
S. V. Kulkarni
Keyword(s):  
Resonance Frequency ◽  
High Power ◽  
Cyclotron Resonance ◽  
Ultra Wideband ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Hybrid Coupler ◽  
Icrf Heating

Design and development of 2 kW, 3 dB hybrid coupler for the prototype Ion Cyclotron Resonance Frequency (ICRF) system

2018 ◽  
Vol 11 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Abhinav Jain ◽  
Rana Pratap Yadav ◽  
S. V. Kulkarni
Keyword(s):  
Resonance Frequency ◽  
High Frequency ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
Design And Development ◽  
Very High Frequency ◽  
Ion Cyclotron ◽  
Hybrid Coupler ◽  
Reflected Power ◽  
Better Than

AbstractDesign and development of 2 kW, 3 dB tandem hybrid coupler for the frequency range of 155–225 MHz has been presented in this paper. The developed 3 dB coupler is to be used in a prototype of Ion Cyclotron Resonance Frequency (ICRF) system of Tokamak, which has been developed to test the resilience of ICRF network during continuously variable RF load excursions. The 3 dB coupler divides the RF power between two antennae of the prototype and protects the RF source by coupling of reflected power to the isolated port. The developed coupler shows excellent coupling flatness of −3 ± 0.3 dB over 38% of fractional bandwidth and also provides voltage standing wave ratio (VSWR) <1.3, isolation better than 32 dB and return loss better than 25 dB in full band. The presented work establishes a technique which can be useful for the development of high-power hybrid coupler in the range of high frequency (HF), very high frequency (VHF) and ultra high frequency (UHF).

The High-Power (3-MW) Long-Pulse (3-s) Radio-Frequency System for Ion Cyclotron Resonance Heating Experiments on TEXTOR

1987 ◽  
Vol 12 (3) ◽  
pp. 449-475 ◽  
Author(s):  
G. Van Oost ◽  
V. P. Bhatnagar ◽  
T. Delvigne ◽  
P. Descamps ◽  
F. Durodié ◽  
...  
Keyword(s):  
Radio Frequency ◽  
High Power ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Long Pulse

scholarly journals Ion cyclotron resonance frequency heating in JET during initial operations with the ITER-like wall

2014 ◽  
Vol 21 (6) ◽  
pp. 061510 ◽  
Author(s):  
P. Jacquet ◽  
V. Bobkov ◽  
L. Colas ◽  
A. Czarnecka ◽  
E. Lerche ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Frequency Heating

scholarly journals Validation of the load-resilient ion cyclotron resonance frequency antenna concept on Tore Supra plasmas

2008 ◽  
Vol 48 (6) ◽  
pp. 065007 ◽  
Author(s):  
K. Vulliez ◽  
A. Argouarch ◽  
G. Bosia ◽  
G. Berger-By ◽  
S. Bremond ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron
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