Title :
Chebyshev quarter-wave stepped balun transformer
Author_Institution :
University of Essex, Department of Electrical Engineering Science, Colchester, UK
Abstract :
The design of a balun transformer from coaxial to open-wire line is presented, in which conventional quarter-wave-matching theory is used to produce a compact device with optimal Chebyshev performance over its passband. Included in the design are the evaluation and corrections for the junction capacitances caused by stepping the outer coaxial conductor.
Keywords :
antenna feeders; high-frequency transformers; impedance matching; Chebyshev performance; antenna feeders; balun transformer; design; evaluation; high frequency transformers; impedance matching; junction capacitances; log periodic antenna; quarter wave matching theory;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730378
