Abstract:
Techniques are described which allow the traceable measurement, at low uncertainty levels, of changes in attenuation value in excess of 140 dB at frequencies from 0.5 MHz...Show MoreMetadata
Abstract:
Techniques are described which allow the traceable measurement, at low uncertainty levels, of changes in attenuation value in excess of 140 dB at frequencies from 0.5 MHz to 100 MHz. The coherent nature of the dual channel techniques employed allows the changes in the path length through an attenuator, produced when its setting is changed, to be measured accurately even at high attenuation levels.<>
Published in: IEEE Transactions on Instrumentation and Measurement ( Volume: 44, Issue: 2, April 1995)
DOI: 10.1109/19.377838
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1.
F. L. Warner, P. Herman and P. Cummings, "Recent improvements to the UK national microwave attenuation standards", IEEE Trans. Instrum. Meas., vol. IM-32, pp. 33-37, Mar. 1983.
2.
H. Bayer, F. L. Warner and R. W. Yell, "Attenuation and ratio—National Standards", Proc. IEEE, vol. 74, pp. 46-59, Jan. 1986.
3.
G. E. Schafer and R. R. Bowman, "A modulated subcarrier technique of measuring microwave attenuation", Proc. IEE, vol. 109B, no. suppl. 23, pp. 738-786, 1962-May.
4.
W. E. Little, "Further analysis of the modulated sub-carrier technique of attenuation measurement", IEEE Trans. instrum. Meas., vol. IM-13, pp. 71-76, June-Sept. 1964.
5.
F. L. Warner, Microwave Attenuation Measurement, London:Peter Peregrinus, pp. 19-156, 1977.
6.
F. L. Warner, "High accuracy 150 dB attenuation measurement system for traceability at RF", IEE Colloquium Dig., pp. 3/1-3/7, 1990-Dec.
