EXPERIMENTAL INVESTIGATION OF STACKED CIRCULAR MICROSTRIP PATCH ANTENNAS

Davor Bonefačic et al.

   Stacked circular patch configuration was used to obtain a larger input impedance bandwidth. The influence of the spacing between the driven and parasitic patch on the input impedance was experimentally investigated. A line transformer was used for input impedance matching. Radiation pattern measurements confirmed good radiation properties and low cross-polarization levels.

Keywords: microstrip antennas, stacked patch antennas, impedance matching

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