Multibeam SIW Slotted Waveguide Antenna System Fed by a Compact Dual-Layer Rotman Lens
Microstrip fed SIW slot antenna backed with cavity for millimeter wireless communication applications
Folded Rotman lens multibeam antenna in SIW technology at 24 GHz
Beamforming Lens Antenna on a High Resistivity Silicon Wafer for 60 GHz WPAN
Rotman lens design and simulation in software [Application Notes]
Recent and future research trends in planar multi-beam antennas in the millimeter wave range at IETR-France