## Abstract

A systematic approach for designing broadband low-sidelobe linear and planar antenna arrays by varying interelement spacings has not been available. Both the large number of possible spacing combinations along with theoretical limitations of the problem have made it difficult to formulate robust broadband design techniques. The genetic algorithm (GA) has recently proven to be a very effective design tool for nonuniformly spaced low sidelobe antenna arrays with uniform excitation intended for operation at a single frequency. This paper deals with a generalization of previous GA techniques to include the design of low sidelobe arrays that are operable over a band of frequencies. It will be shown that the GA objective function is no more complicated to evaluate for broad-banding purposes than it is in the single frequency case. Several examples of GA-designed broadband low sidelobe arrays will be presented and discussed.

Original language | English (US) |
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Pages | 348-358 |

Number of pages | 11 |

State | Published - Jan 1 1999 |

Event | Proceedings of the 1999 ACES 15th Annual Review of Progress in Applied Computational Electromagnetics - Monterey, CA, USA Duration: Mar 15 1999 → Mar 20 1999 |

### Conference

Conference | Proceedings of the 1999 ACES 15th Annual Review of Progress in Applied Computational Electromagnetics |
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City | Monterey, CA, USA |

Period | 3/15/99 → 3/20/99 |

## All Science Journal Classification (ASJC) codes

- Electrical and Electronic Engineering