Design of a printed log-periodic dipole antenna (LPDA) for 0.8–2.5 GHz band applications

This paper presents the step-by-step design procedure and simulated performance investigation of a printed log-periodic dipole antenna (LPDA) that is able to operate cover wide frequency range (800–2500 MHz). The advantage of this antenna is compact and easy to integrate with planar circuits which is suitable for applications that need wide bandwidth and high gain antenna. The dimension of designed antenna has initially been calculated; then modeled using a commercial electromagnetic simulation to optimize the effect of dielectric properties of substrate on the width and length of dipole element conductors. To validated the designed antenna, it is fabricated and measured to carry out its S11 and radiation patterns. The measured results are in good agreement with the simulation ones.