Radiation properties of open microstrip discontinuities

The radiation properties of a variety of open microstrip discontinuities have been studied. The full electromagnetic analysis performed has been shown to characterize microstrip corners, steps, and matching sections accurately. The technique used solves Pocklington's integral equation for the unknown current distribution of the conducting sections by an application of the method of moments in the space domain. The radiated field is evaluated using a steepest descent method. The analysis accurately accounts for all substrate effects. The technique is used to characterize a single-loop meander inductor. The radiated power over a wide frequency range is shown, and the radiated power above 30 GHz is found to be quite significant.<>