newbie101
Member level 2
klopfenstein taper
Hi All,
R.W. Klopfenstein, “A Transmission Line Taper of Improved Design”, Proc. IRE, Vol.44, pp.31-35, 1956.
In the January 1956 Proceedings of the IRE, R. W. Klopfenstein presented equations which can be used to design transmission line tapers. "...the Dolph-Tchebycheff taper is optimum in the sense that it has minimum reflection coefficient magnitude in the passband for a specified length of taper". One drawback of the Klopenstein taper is that an impedance discontinuity or step occurs at the ends of the taper.
R.P. Hecken, “A Near-Optium Matching Section Without Discontinuities”, IEEE, Vol MTT-20, pp 734-739, 1972.
In the November 1972 Transactions of the MTT, R. P. Hecken modified the Klopfenstein methodology to eliminate the impedance discontinuities. This "near-optimum" taper is only slightly longer than the Klopfenstein taper.
Ok I copied the descriptions from a webpage...
What I'm trying to say here is-> both these designs were done a long time ago!! (1970 & 1950)
Is there any improvements, since then. If you know of a paper the gives a better taper profile, please upload or at least post the paper title.
regards,
newbie101
Hi All,
R.W. Klopfenstein, “A Transmission Line Taper of Improved Design”, Proc. IRE, Vol.44, pp.31-35, 1956.
In the January 1956 Proceedings of the IRE, R. W. Klopfenstein presented equations which can be used to design transmission line tapers. "...the Dolph-Tchebycheff taper is optimum in the sense that it has minimum reflection coefficient magnitude in the passband for a specified length of taper". One drawback of the Klopenstein taper is that an impedance discontinuity or step occurs at the ends of the taper.
R.P. Hecken, “A Near-Optium Matching Section Without Discontinuities”, IEEE, Vol MTT-20, pp 734-739, 1972.
In the November 1972 Transactions of the MTT, R. P. Hecken modified the Klopfenstein methodology to eliminate the impedance discontinuities. This "near-optimum" taper is only slightly longer than the Klopfenstein taper.
Ok I copied the descriptions from a webpage...
What I'm trying to say here is-> both these designs were done a long time ago!! (1970 & 1950)
Is there any improvements, since then. If you know of a paper the gives a better taper profile, please upload or at least post the paper title.
regards,
newbie101