An electronic scanning antenna (ESA) that uses a beamformer for scanning the beam has the advantage of being able to form multiple beams for multimode, shared-aperture applications. This scanning approach is achieved at a reduced parts count for the antenna subassembly and therefore at a lower cost than approaches utilizing phase-shifting elements for controlling the beam. This paper discusses our efforts to realize such a beamformer using Rotman lens geometry and details some of the technologies we investigated as well as some engineering tradeoffs encountered.
Rotman lens development at the Army Research Lab
2006 IEEE Aerospace Conference ; 7 pp.
2006-01-01
1673725 byte
Conference paper
Electronic Resource
English
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