Ultra-Wideband Scanning Antenna Array With Rotman Lens
Scattering of an electromagnetic plane wave by a Luneburg lens. I. Ray theory.
Rotman lens beam formers for Army multifunction RF antenna applications
Wideband Inline Coaxial to Ridge Waveguide Transition With Tuning Capability for Ridge Gap Waveguide
Design of a 32 element rotman lens at 220 GHz with 20 GHz bandwidth
Wide band multi-beam cylindrical lens