Title :
Ultraspherical tapers
Author :
Massaro, P.A. ; Picciarelli, V.
Author_Institution :
UniversitÃ\xa0 di Bari, Istituto di Fisica, INFN Sezione di Bari, Bari, Italy
Abstract :
Tapered transmission lines for impedance matching at microwave frequencies are obtained from quarter-wave transformers using ultraspherical polynomials. It is shown that a free parameter can be suitably chosen so as to optimise energy transmission.
Keywords :
high-frequency transformers; impedance matching; transmission lines; energy transmission optimisation; impedance matching; microwave frequencies; quarter wave transformers; ultraspherical polynomials; ultraspherical tapers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790206
