. The Bell System technical journal . Fig PARALLEL-WIREGRID 3—Types of grids used in the measurements. CROSS-LATERALGRID cate the relation between these parameters and the measured quantitiesY and 7: ,„ = 1- + J>^^ « Y (1) 62^22 + 1 yi2 y22 7 1 + 1 62 V. (2) where the number 62 represents the output terminating impedance. Forall cases to be described here the second term on the right side of Equation 1is small in comparison with F. This is a result of the small values encounteredfor yi2. To a good approximation yn is equal to the measured input ad-mittance F. This was verified by observing
. The Bell System technical journal . Fig PARALLEL-WIREGRID 3—Types of grids used in the measurements. CROSS-LATERALGRID cate the relation between these parameters and the measured quantitiesY and 7: ,„ = 1- + J>^^ « Y (1) 62^22 + 1 yi2 y22 7 1 + 1 62 V. (2) where the number 62 represents the output terminating impedance. Forall cases to be described here the second term on the right side of Equation 1is small in comparison with F. This is a result of the small values encounteredfor yi2. To a good approximation yn is equal to the measured input ad-mittance F. This was verified by observing the variation m input admittanceas the output spacing was varied while keeping the input spacing a slight variation in admittance was observed, which indicated thatthe fractional term in Equation 1 was small in comparison with F. Suppose, then, that for a given input and output spacing Si and .S2 , A Method of Measuring Phase at Microwave Frequencies, S. D. Robertson, BellSystem Technical Journal, Vol. XXVIII, No. 1,
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