5SEYMOUR B. COHN. A Class of Broadband Three-Port TEM-Mode Hybrids. IEEE TRANSATIONS ON MICROWAVE THEORY AND TECHNIQUES ,VOL. MTT-16 ,NO. 2 ,FEBRUARY 1968.
6HOMAYOON ORAIZI, Ali-Reza Sharifi. Design and Optimization of Broadband Asymmetrical Multiseetion Wilkinson Power Divider. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO5, MAY 2006.
