Abstract
This paper presents the performance of a Log Periodic Dielectric Resonator Array (LPDRA) for NATO–K band (18–40 GHz) applications. In this paper, a new wide bandwidth antenna with flat conformal characteristics is formed by application of log periodic technique to the series fed electromagnetically coupled rectangular overlaid dielectric resonator array. This LPDRA has been simulated using a CST microwave studio suite 2010. The simulated results show the wider impedance bandwidth, covering the frequency range of 18–40 GHz with a Voltage Standing Wave Ratio (VSWR) less than 2 and radiation efficiency greater than 95%. Its maximum gain is 9.9 dBi at centre frequency 28 GHz. Parametric studies of the antenna with CST microwave studio based design data and simulated results are presented here. The scaling factor of 1.05 has been chosen for this design.
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