DocumentCode :
777739
Title :
Compact power detection probe for the RF plasma heating waveguide array
Author :
Kung, C.C. ; Bernabei, S. ; Gumbas, J., Jr. ; Greenough, N. ; Fredd, E. ; Wilson, J.R. ; Hosea, J.
Author_Institution :
Princeton Plasma Phys. Lab., Princeton Univ., NJ, USA
Volume :
33
Issue :
2
fYear :
2005
fDate :
4/1/2005 12:00:00 AM
Firstpage :
969
Lastpage :
975
Abstract :
Reduced height waveguide arrays are commonly used in fusion plasma radio frequency heating in the lower hybrid frequency range. In order to distinguish the incident wave and the reflected wave, power detection with high directivity in each reduced height waveguide is required. Due to the confined space in a stack of reduced height waveguides, power detection with high directivity in the reduced height waveguide is extremely difficult, especially from the wide side of the waveguide by using a conventional E probe. A new compact probe, which employs current loops, to monitor the incident and reflected wave from the narrow side of the reduced height waveguide has been developed. According to the test data, greater than 35 dB of directivity was measured with this compact probe at 4.6 GHz.
Keywords :
plasma filled waveguides; plasma hybrid waves; plasma probes; plasma radiofrequency heating; 4.6 GHz; RF plasma heating waveguide array; compact power detection probe; current loops; fusion plasma radiofrequency heating; incident wave; lower hybrid frequency; reflected wave; Antenna arrays; Heating; Phased arrays; Physics; Plasma applications; Plasma confinement; Plasma measurements; Plasma waves; Probes; Radio frequency; Compact power detection probe; radio frequency (RF) plasma heating; reduced height waveguide array;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.2005.844491
Filename :
1420651
Link To Document :
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