Chen, T. J.T. J.Chen張宏鈞Chang, Hung-ChunHung-ChunChang2009-02-042018-07-062009-02-042018-07-061991http://ntur.lib.ntu.edu.tw//handle/246246/121252en-USCalculation of Radiation from Dielectric Waveguide Step Discontinuites Using a PEC Approximationconference paper