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A planar dipole array antenna with an elliptical lens
Author(s) -
Skalare A.,
De Graauw Th.,
van de Stadt H.
Publication year - 1991
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650040105
Subject(s) - dipole antenna , optics , antenna (radio) , antenna measurement , coaxial antenna , physics , reflector (photography) , radiation pattern , periscope antenna , telecommunications , engineering , light source
We describe a planar antenna structure consisting of two half‐wave dipoles, which are backed by a metallic reflector to create an image of two more elements. The array produces rather a wide main beam, and is therefore used with a dielectric lens. The far‐field pattern of the dipole liens antenna has cross‐pol better than −20 dB, and side lobes below −13 dB over an octave band. The impedance at the feedpoint of the antenna is approximately 70 ‐ j10 Ω at the center of the band.