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Slow-wave structures-based method of measurements

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2 Author(s)
Pchelnikov, Yu.N. ; Sensors Div., MTS Syst. Corp., Cary, NC, USA ; Nyce, David S.

A novel electromagnetic measurement method is described from the physical point of view. Based on the application of slow-wave structures, this method combines the advantages of relatively high and relatively low frequency bands. Concentration of an electromagnetic field, caused by wave deceleration, leads to a significant increase in sensitivity. The main parameters and characteristics of the sensitive elements, built as sections of slow-wave structures, are considered in this paper. It is shown that the electric and magnetic fields split in the transverse direction in sensors based on coupled slow-wave structures. This leads to an additional increase in sensitivity. Some examples of practical slow-wave structure-based measurement methods are also presented.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:51 ,  Issue: 5 )