Array Antenna on a Dielectric Layer

Antennas of this type constitute a significant progress in the construction of complex linear antenna arrays used in micro-wave range because of their specific production technology. However, no theoretical characteristics of those antennas on a dielectric layer exist. The paper presents results of an analysis of radiation characteristics for an antenna array on a dielectric without a screen. We deal with a three-layer medium: air - dielectric - air. Radiation characteristics of the array antenna working on a dielectric layer have been calculated. Results of the calculations show that if the dielectric constant of the ground increases the width of the main lobe also increases. In order to check the correctness of the analysis a model array antenna working on a dielectric layer has been tested. A number of radiation characteristics of the antenna have also been presented.