Characteristics of single-polarized phased array of tapered slot antennas

Numerical and experimental studies are beginning to reveal some of the important design parameters of wide-band tapered slot antenna arrays. Results from several studies are presented to illustrate the problems encountered in antenna design and to provide guidance in developing successful designs. Parameter studies suggest that the stripline stub and slotline cavity have a large impact on performance at the upper and lower ends of the frequency band and that the antenna flare can be altered to impact in-band SWR. Some impedance anomalies that limit wide-band scanning are identified and some corrective actions are suggested.