Eshrah, I., Kishk, A., Yakovlev, A., Glisson, A. and Smith, C. (2004) Analysis of Waveguide Slot-Based Structures Using Wide-Band Equivalent-Circuit Model. IEEE Transactions on Microwave Theory and Techniques, 52, 2691-2696.
http://dx.doi.org/10.1109/TMTT.2004.837320