Realization of Rotman's concepts of beamformer lenses and artificial dielectric materials

The Rotman lens as a passive beam former for antenna arrays and the artificial dielectric material, referred to recently as metamaterial, are two of the key concepts that Walter Rotman proposed. They made significant impact in the areas of antenna arrays and antenna and microwave components. This paper goes into the details of the realizations of the Rotman lens over the years, going from the waveguide-based to the printed-circuit configurations. The paper also discusses the results of some of the metamaterial implementations and features of antenna designs that use such materials.

[1]  Andrew F. Peterson,et al.  Millimeter wave Rotman lens , 1997, Proceedings of the 1997 IEEE National Radar Conference.

[2]  O. Kilic,et al.  Dielectric Rotman lens design for multi-function RF antenna applications , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[3]  J. Pendry,et al.  Negative refraction makes a perfect lens , 2000, Physical review letters.

[4]  Willie J Padilla,et al.  Composite medium with simultaneously negative permeability and permittivity , 2000, Physical review letters.

[5]  Simulation of refraction focusing using negative-refractive-index metamaterials , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[6]  W. Rotman.  Plasma simulation by artificial dielectrics and parallel-plate media , 1962 .

[7]  J. Pendry,et al.  Magnetism from conductors and enhanced nonlinear phenomena , 1999 .

[8]  T.K. Anthony.  Rotman lens development , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[9]  V. Veselago.  The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ , 1968 .

[10]  Free space measurements of negative refraction with varying angles of incidence , 2005, IEEE Microwave and Wireless Components Letters.

[11]  B. A. Munk.  Metamaterials: Critique and Alternatives , 2009 .

[12]  W. Rotman,et al.  Wide-angle microwave lens for line source applications , 1963 .

[13]  O. Kilic,et al.  Rotman lens beam formers for Army multifunction RF antenna applications , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[14]  Carey M. Rappaport,et al.  Optimized three-dimensional lenses for wide-angle scanning , 1985 .

[15]  R M Walser,et al.  Wave refraction in negative-index media: always positive and very inhomogeneous. , 2002, Physical review letters.