Hall, L.Hansen, H.Abbott, D.Abbott, D.Varadan, V.K.Boehringer, K.F.2007-05-142007-05-142001Smart electronics and MEMS II : 13-15 December 2000, Melbourne, Australia / Derek Abbott, Vijay K. Varadan, Karl F. Boehringer (eds.), pp. 188-193081943910x0277-786Xhttp://hdl.handle.net/2440/28378© 2003 COPYRIGHT SPIE--The International Society for Optical EngineeringMulti-beam approaches using beam-forming antenna array architectures have been identified as one solution for overcoming the limited fields-of-view provided by highly directional mm-wave sensors. Rotman lenses offer a compact, rugged and reliable alternative to electronically scanned antenna technologies but architectures that operate at frequencies > 20 GHz perform poorly at higher frequencies on account of greater losses and dispersion. This paper outlines the design process for providing Rotman-based lenses, examining various levels of simulation that are needed for designs that function at K and W-band frequencies. The impact of using mictrostrip structures is demonstrated.enConference paper002001218910.1117/12.4187570001692630000252-s2.0-003498569161009Abbott, D. [0000-0002-0945-2674]