Null-steering techniques for application to large array antennas
Abstract
A multimode waveguide can be employed to design an antenna which produces a beam for each propagating mode. A dual-beam waveguide slot array is particularly attractive. The antenna is compact, highly efficient, and has lower sidelobe-level performance than can be achieved with conventional monopulse techniques. Adaptive phase steering for jammer nulling is considered, taking into account a large phased array using a series feed system. The considered configuration was selected for computer simulation. A description is presented of a multiple beam antenna with independent steerable nulls. The multiple beam low-sidelobe antenna configuration has the ability to provide a radiation pattern with multiple and independently-located nulls, with minimal effect on the sidelobes of the unperturbed pattern.
- Publication:
-
Military Microwaves 1980; Proceedings of the Second Conference
- Pub Date:
- 1981
- Bibcode:
- 1981mimi.proc..623H
- Keywords:
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- Antenna Arrays;
- Antenna Radiation Patterns;
- Radar Antennas;
- Waveguide Antennas;
- Adaptive Control;
- Antenna Design;
- Null Zones;
- Phase Control;
- Electronics and Electrical Engineering