TY - GEN AU - Sreenivasiah, I AU - Chang, David C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1979-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.79-1606 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1979 TI - A variational expression for the scattering matrix of a coaxial line step discontinuity and its application to an over moded coaxial TEM cell: ER -