LINEAR ARRAYS CONSISTING OF 4 PROBE-FED CYLINDRICAL DIELECTRIC RESONATOR ANTENNAS

In this study, we report two four-element linear broadside arrays shap ing the E-theta and E-phi field components. The radiating elements are probe-fed cylindrical dielectric resonator antennas. The arrays are a nalytically formulated, numerically simulated, and experimentally test ed. The resonant frequency, radiation pattern, gain, unloaded Q-factor , and impedance bandwidth of each array configuration are reported, an d the experimental results are compared with the theoretical predictio ns. The gains of the two arrays were greater than the gain of the sing le element by factors of similar to 5 and similar to 3, respectively. Overall good agreement was obtained between theoretical and experiment al results, with the numerical results being more accurate. (C) 1998 J ohn Wiley & Sons, Inc.