TY - JOUR
T1 - Very low-profile "bull's eye" feeder antenna
AU - Beruete, M.
AU - Campillo, I.
AU - Dolado, J. S.
AU - Rodríguez-Seco, J. E.
AU - Perea, E.
AU - Falcone, F.
AU - Sorolla, M.
PY - 2005
Y1 - 2005
N2 - In this letter, a very low-profile planar horn antenna is proposed. It consists of a subwavelength aperture placed into a "Bull's Eye" concentric periodic corrugated conducting plate that produces good return losses and a narrow radiated beam. The antenna is excited by means of a waveguide whose flange has been properly mechanized in the rear part of the structure. The mechanism explaining this phenomenon is similar to the enhanced transmission observed at optical wavelengths in similar structures. In this work, the circularly corrugated structure has been scaled into the microwave frequency range and, moreover, the plane wave excitation has been replaced by a subwavelength aperture excited by a conventional closed metallic waveguide. This transforms the original focusing structure into a new concept of a very low-profile feeder with potential applications.
AB - In this letter, a very low-profile planar horn antenna is proposed. It consists of a subwavelength aperture placed into a "Bull's Eye" concentric periodic corrugated conducting plate that produces good return losses and a narrow radiated beam. The antenna is excited by means of a waveguide whose flange has been properly mechanized in the rear part of the structure. The mechanism explaining this phenomenon is similar to the enhanced transmission observed at optical wavelengths in similar structures. In this work, the circularly corrugated structure has been scaled into the microwave frequency range and, moreover, the plane wave excitation has been replaced by a subwavelength aperture excited by a conventional closed metallic waveguide. This transforms the original focusing structure into a new concept of a very low-profile feeder with potential applications.
KW - Bull eye
KW - Concentric periodic corrugated plate
KW - Metamaterials
KW - Subwavelength aperture
KW - Very low-profile feeder
UR - http://www.scopus.com/inward/record.url?scp=31144450833&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2005.851104
DO - 10.1109/LAWP.2005.851104
M3 - Article
AN - SCOPUS:31144450833
SN - 1536-1225
VL - 4
SP - 365
EP - 368
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 1
ER -