Design of lange coupler for MIC and MMIC technology using complementary deformed omega structure
A novel design for a 3 dB Lange coupler based on complementary deformed omega structure (CDOS) is proposed. Observations, from parametric study for the CDOS based Lange coupler, are provided to aid in the design process. A functional linked artificial neural network has been used to determine the dimensions of the CDOS. Electromagnetic simulations have been validated with experimental results obtained from fabricated prototypes.  2011 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2012.
lange coupler deformed omega structure coupling even and odd mode functional link neural network