Analysis of illuminated bent microstrip line based on Baum-Liu-Tesche (BLT) equation

This paper presents an effective method based on the Baum-Liu-Tesche (BLT) equation for the simulation of microstrip lines with discontinuities in the presence of electromagnetic illuminations. A right-angled bend is taken into account in the modeling and simulation, as a typical discontinuity of microstrip line. With the BLT equation and superposition principle, the terminal voltages of microstrip lines can be obtained. First, the case of plane wave incidence is analyzed. The validity and accuracy of the proposed method are illustrated by the numerical results. Then, the microstrip bend is illuminated by the near field of a dielectric resonator antenna. The relative error of voltage amplitudes is within 8%, when compared with the full-wave simulated results with ANSYS HFSS.