Design of slot line antennas

A design theory for slot-line antennas is presented that gives satisfactory agreement between theory and measurements. Moreover, it leads to an improved performance with respect to both radiation pattern and gain when compared to former design techniques developed by Prasad and Mahapatra (1983) and Abdel-Azis et al. (1984). The design procedure for a prescribed radiation characteristic optimizes the beamwidth for a certain sidelobe level. The antenna gain is relatively high and varies within a small range for the desired frequency band. The design method has been applied to both X-band and Ka-band antennas.<>