A flexible optimization method for the pattern synthesis of equispaced linear arrays with equiphase excitation

Author

Shpak, Dale J. ; Antoniou, Andreas

Author_Institution

Dept. of Eng., R. Roads Mil. Coll., Victoria, BC, Canada

Volume

40

Issue

10

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1113

Lastpage

1120

Abstract

A synthesis method is proposed for linear arrays having equiphase excitation currents. In addition to allowing for the exact specification of the beamwidth and for the specification of individual sidelobe levels by index or as a function of bearing (e.g., angularly extended nulls), multiple deep narrow nulls can be specified at arbitrary bearing angles. The method is suitable for the design of broadside or endfire arrays with sum or difference patterns and can also be used for the design of superdirective arrays with good radiation efficiencies and sensitivity properties. For computational efficiency, the method uses a new constrained multivariable Remez-type L_∞ approximation technique

Keywords

antenna arrays; antenna radiation patterns; directive antennas; function approximation; angularly extended nulls; arbitrary bearing angles; beamwidth; bearing function specification; broadside arrays; computational efficiency; constrained multivariable Remez-type L_∞ approximation technique; difference patterns; endfire arrays; equiphase excitation; equispaced linear arrays; index specification; multiple deep narrow nulls; optimization method; pattern synthesis; radiation efficiencies; sensitivity properties; sidelobe levels; sum patterns; superdirective arrays; Computational efficiency; Councils; Design methodology; Iterative methods; Military computing; Optimization methods; Process design; Robustness;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.182443

Filename

182443