Abstract-A novel dielectric cylindrical electronic bandgap antenna is presented and analysed using an in-house developed Finite-DifferenceTime-Domain software simulator. The design steps and the simulations results of a geometrical parametric study are also presented and discussed, focusing on the design of antennas to operate in the X-band with high directivity patterns on the H-plane. Finally, the measurements results of a set of experiments carried out on a prototype showed very good agreement with simulations: 11% fractional bandwidth at 10 GHz and an average gain of 9.5 dBi are achieved in the impedance bandwidth with 13 dB front-to-back-ratio in the azimuthal plane.

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