A simple but accurate transmission line model for the analysis of microstrip travelling wave
antennas based on microstrip lines and right angle bends is described. Radiated far fields
from the antenna are calculated using magnetic current on the antenna sidewalls and
electric current on the strip surface. Local reflections from the right angle discontinuity are
considered in internal field calculations. An equivalent decay constant to accommodate the
radiated power from the antenna is introduced which is iteratively computed to improve …