Kw. Leung et Km. Luk, RADIATION CHARACTERISTICS OF AN APERTURE-COUPLED HEMISPHERICAL DIELECTRIC RESONATOR ANTENNA, Microwave and optical technology letters, 7(14), 1994, pp. 677-679
The radiation characteristics of an aperture-coupled hemispherical die
lectric resonator (DR) antenna excited at the broadside TE111 mode is
investigated both theoretically and experimentally. The Green's functi
ons of the DR antenna are presented for the evaluation of fields in th
e upper-half plane, and the stationary phase technique is used for the
back-lobe radiation. The effect of the slot length on the radiation i
s studied, and the cross-polarized fields of the antenna are discussed
. (C) 1994 John Wiley & Sons, Inc.