Beamforming for a multi-beam radar
Abstract
It is shown that angular discrimination in a surveillance radar can be achieved by versatile beamforming at the intermediate frequency stage of the receiver. Beam position, beamwidth and sidelobe levels can be accurately predicted by the design theory, even when readily available standard components are employed in manufacturing the weighting networks. In practice, a beamformer can be modular, allowing simple amendments to the beam format by the substitution of plug-in circuit cards. In addition, the beam outputs are phase coherent, which allows optimum use to be made of the information in the radar's subsequent signal processing.
- Publication:
-
Radar-82
- Pub Date:
- 1982
- Bibcode:
- 1982rpi..conf..390C
- Keywords:
-
- Angular Resolution;
- Antenna Radiation Patterns;
- Multibeam Antennas;
- Radar Antennas;
- Sidelobe Reduction;
- Surveillance Radar;
- Antenna Design;
- Automatic Gain Control;
- Computer Aided Design;
- Phase Control;
- Signal Processing;
- Communications and Radar