A Novel Reduced-Height Broadband Monopole

Sébastien Palud (1) , Franck Colombel (2) , Mohamed Himdi (2) , Cyrille Le Meins

1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 IETR - Institut d'Électronique et des Technologies du numéRique

This paper presents a broadband omnidirectional vertically polarized antenna of only a one eighth wavelength associated to the lowest frequency. This antenna is composed of a conical monopole with metallic parasitic elements, a capacitive disk and a dielectric substrate placed above a square ground plane. This structure provides broadband performances and omnidirectional radiation patterns over the whole bandwidth. Simulations and experiments demonstrate that this structure exhibits a 2.9:1 impedance bandwidth with VSWR below 2:1 and very good radiation patterns and gains in spite of a height extremely reduced.

Domains: Engineering Sciences [physics]; Electromagnetism; Engineering Sciences [physics]; Electronics

Sébastien Palud, Franck Colombel, Mohamed Himdi, Cyrille Le Meins. A Novel Reduced-Height Broadband Monopole. Antenna Technology: Small Antennas and Novel Metamaterials, 2008. iWAT 2008, Mar 2008, Chiba, Japan. pp.179-182. ⟨hal-00360766⟩