Phase-only control of antenna sum and shaped patterns through null perturbation

Author

Trastoy, A. ; Ares, F. ; Moreno, E.

Author_Institution

Grupo de Sistemas Radiantes, Santiago de Compostela Univ., Spain

Volume

43

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

45

Lastpage

54

Abstract

Satisfactory sum or shaped antenna radiation patterns can often be synthesized by modifying just the phase distribution of an initial excitation by an arbitrary amplitude distribution. As examples, we calculate linear and circular apertures with uniform, Taylor, or cosine-section amplitude distributions, affording symmetric sum patterns with low sidelobe levels or symmetric shaped patterns with low ripple and sidelobe levels; linear aperture distributions, affording patterns with low sidelobe levels on one side of the beam; and planar arrays, with uniform or cosine-section amplitude distributions affording φ-symmetric or elongated-oval footprints

Keywords

antenna radiation patterns; linear antenna arrays; phase control; planar antenna arrays; shaped beam antennas; φ-symmetric footprints; Taylor amplitude distribution; antenna radiation patterns; antenna shaped patterns; antenna sum patterns; circular apertures; cosine-section amplitude distribution; elongated-oval footprints; linear antenna arrays; linear aperture distributions; low ripple levels; low sidelobe levels; null perturbation; phase distribution; phase-only control; planar arrays; symmetric shaped patterns; symmetric sum patterns; uniform amplitude distribution; Antenna radiation patterns; Apertures; Directional antennas; Linear antenna arrays; Optimization methods; Phase control; Phased arrays; Planar arrays; Sampling methods; Shape control;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.979495

Filename

979495