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A planar dipole array antenna with an elliptical lens

1991; Wiley; Volume: 4; Issue: 1 Linguagem: Inglês

10.1002/mop.4650040105

1098-2760

A. Skalare, Th. de Graauw, H. van de Stadt,

Microwave Engineering and Waveguides

Abstract 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.