Gp. Junker et al., EFFECT OF AN AIR-GAP AROUND THE COAXIAL PROBE EXCITING A CYLINDRICAL DIELECTRIC RESONATOR ANTENNA, Electronics Letters, 30(3), 1994, pp. 177-178
Results of an experimental study pertaining to the effect of an air. p
p surrounding the feed probe of a cylindrical dielectric resonator (CD
R) antenna on its input impedance and resonance frequency are presente
d. The antennas under consideration consist of a CDR positioned on a c
onducting ground plane and fed by a coaxial probe to excite either the
TM01 or HEM11 antenna modes.