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Assigning RF DC Transfer Difference to RF Voltage Primary Standard from 1 MHz to 1000 MHz


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1 LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India
     

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National Physical Laboratory (NPL) India is the premier research & development center and the National Metrology Institute (NMI), which provides traceability in measurements by calibration throughout the country. Radio frequency (RF) voltage is one of the important parameter in RF metrology. At NPLI the primary standard of RF Voltage at frequencies from 1 MHz to 1000 MHz is a twin resistance coaxial power mount. The calibration technique and the traceability in assigning the RF DC transfer difference to RF voltage primary standard are described in this paper This technique has been established for accurate measurement and characterization of twin resistance coaxial power mount by assigning RF DC transfer differences in terms of RF power, RF impedance and DC resistance. The calibrated results of the RF voltage primary standard have been discussed in this paper. The overall uncertainty in assigning RF DC transfer difference has been found to lie within 0.53% in the frequency range up to 1 GHz.

Keywords

RF-DC Transfer Difference, RF Voltage, Standard, Calibration, Traceability, Effective Efficiency.
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  • Assigning RF DC Transfer Difference to RF Voltage Primary Standard from 1 MHz to 1000 MHz

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Authors

Saood Ahmad
LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India
Bijendra Pal
LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India
Sunidhi Luthra
LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India
A. K. Govil
LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India
P. Banerjee
LF & HF Voltage, Current and Microwave Standards, National Physical Laboratory, C. S. I. R., New Delhi, India

Abstract


National Physical Laboratory (NPL) India is the premier research & development center and the National Metrology Institute (NMI), which provides traceability in measurements by calibration throughout the country. Radio frequency (RF) voltage is one of the important parameter in RF metrology. At NPLI the primary standard of RF Voltage at frequencies from 1 MHz to 1000 MHz is a twin resistance coaxial power mount. The calibration technique and the traceability in assigning the RF DC transfer difference to RF voltage primary standard are described in this paper This technique has been established for accurate measurement and characterization of twin resistance coaxial power mount by assigning RF DC transfer differences in terms of RF power, RF impedance and DC resistance. The calibrated results of the RF voltage primary standard have been discussed in this paper. The overall uncertainty in assigning RF DC transfer difference has been found to lie within 0.53% in the frequency range up to 1 GHz.

Keywords


RF-DC Transfer Difference, RF Voltage, Standard, Calibration, Traceability, Effective Efficiency.