Slow-wave structures based method of measurements

A novel electromagnetic measurement method if described from 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 peculiarities of the sensitive elements built as sections of slow-wave structures are considered. It is shown that, in sensors based on coupled slow-wave structures, electric and magnetic fields split in the transverse direction lead to additional increase in sensitivity. The examples of practical applications of slow-wave structures based method of measurements are also presented.