Authors' reply to 'Comments on "Converting baluns into broadband impedance-transform hybrids"'
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It was commented that the concept that a hybrid ring may consist of an in-phase power divider and a balun was already introduced by H.-R. Ahn et al. [ibid. vol. 42, pp. 2216-2241 (1994)] and developed theoretically by H.-R. Ahn et al. [ibid. vol. 44, pp. 2241-2247 (1997)]. The differences between the concepts in the title paper [K.S. Ang & Y.-C. Leong, ibid. vol. 50, pp. 1990-1195 (2002)] with these papers will now be highlighted.
[1] Y. C. Leong,et al. Converting baluns into broad-band impedance-transforming 180/spl deg/ hybrids , 2002 .
[2] Sang-Won Yun,et al. Miniaturized 3-dB ring hybrid terminated by arbitrary impedances , 1994 .
[3] Kian Sen Ang,et al. Analysis and design of miniaturized lumped-distributed impedance-transforming baluns , 2003 .
[4] Hyungcheol Shin,et al. A simple and analytical parameter-extraction method of a microwave MOSFET , 2002 .