Abstract
The characteristics of centre probe-fed cylindrical dielectric ring resonator antennas with an air gap are studied both theoretically and experimentally. The return loss of the TM01δ mode is evaluated by using the finite-difference time-domain (FDTD) method and the result agrees well with the measured data. It is demonstrated that the impedance bandwidth can be improved by adjusting the air-gap spacing.
Original language | English |
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Pages (from-to) | 277-278 |
Journal | Electronics Letters |
Volume | 30 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jan 1994 |