Low-Return-Loss Printed Log-Periodic Dipole Antenna

Antoine Chauloux (1) , Franck Colombel (1) , Mohamed Himdi (1) , Jean-Louis Lasserre (2) , Philippe Pouliguen (3)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 DAM/GRAMAT - GRAMAT
3 DGA MRIS - DGA Mission Recherche et Innovation Scientifique

In this letter, a low-return-loss printed log-periodic dipole antenna (PLPDA) fed by a coaxial cable is presented. The widths of dipole elements are optimized to increase the bandwidth. A study of coaxial cable position is included in order to improve the antenna behavior. The measured return loss is lower than -15 dB from 2.1 to 4.3 GHz. The measured gain varies between 6 and 7 dBi. The measurements, including input impedance, gain and radiation patterns, and simulations are in agreement.

Mots clés: Printed log-periodic dipole antenna array (PLPDA); low return loss; coaxial cable

Domaines: Electronique

Antoine Chauloux, Franck Colombel, Mohamed Himdi, Jean-Louis Lasserre, Philippe Pouliguen. Low-Return-Loss Printed Log-Periodic Dipole Antenna. IEEE Antennas and Wireless Propagation Letters, 2014, 13, pp.503 - 506. ⟨10.1109/LAWP.2014.2310057⟩. ⟨hal-01068655⟩