In-line sensor for accurate rf power measurements
Journal Article
·
· Review of Scientific Instruments
- National Centre of Plasma Science and Technology, Dublin City University (Ireland)
An in-line sensor has been constructed with 50 {omega} characteristic impedance to accurately measure rf power dissipated in a matched or unmatched load with a view to being implemented as a rf discharge diagnostic. The physical construction and calibration technique are presented. The design is a wide band, hybrid directional coupler/current-voltage sensor suitable for fundamental and harmonic power measurements. A comparison with a standard wattmeter using dummy load impedances shows that this in-line sensor is significantly more accurate in mismatched conditions.
- OSTI ID:
- 20723187
- Journal Information:
- Review of Scientific Instruments, Vol. 76, Issue 10; Other Information: DOI: 10.1063/1.2090287; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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