Title :
Comments on "Converting baluns into broad-band impedance-transforming 180° hybrids"
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
The above paper [K.S. Ang & Y.C. Leong, ibid., vol.50, pp. 1990-1995, 2002] suggests a ring hybrid adopting a Marchand balun. For this, a main concept that the ring hybrid consists of an in-phase divider and a balun is used.
Keywords :
baluns; equivalent circuits; impedance convertors; power dividers; Marchand balun; baluns conversion; broadband impedance-transforming hybrids; characteristic impedance; in-phase divider; ring hybrid; two-port even-mode equivalent circuit; Circuits; Equations; Impedance matching; Power dividers; Resistors; Scattering parameters; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.821224
