Some far-field studies of an offset launcher. - Michael J. Gans; Ralph A. Semplak (Bell Syst. Tech. J., 1975)

Hybrid-mode, shielded, offset parabolic antenna. - Ralph A. Semplak (Bell Syst. Tech. J., 1983)

Measurements of selective near-in sidelobe reduction of a pyramidal, horn-reflector antenna. - Ralph A. Semplak (Bell Syst. Tech. J., 1983)

100-GHz measurements of two astigmatic launchers. - Ralph A. Semplak (AT&T Tech. J., 1985)