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David R. Smith
Researcher at Duke University
Publications - 891
Citations - 102589
David R. Smith is an academic researcher from Duke University. The author has contributed to research in topics: Metamaterial & Antenna (radio). The author has an hindex of 110, co-authored 881 publications receiving 91683 citations. Previous affiliations of David R. Smith include Brunel University London & Princeton University.
Papers
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Proceedings ArticleDOI
Metallization of a 3D printed cavitiy for imaging
TL;DR: In this paper, a metallized 3D printed cavity for K-band imaging was proposed and the effect of metallization type on mode diversity and image reconstruction was investigated.
Journal ArticleDOI
Realization of a super waveguide for high-power-density generation and transmission using right- and left-handed transmission-line circuits.
TL;DR: From the simulation results and the rigorous analysis of energy speeds, it is shown that high-power flows with opposite directions are excited in the RHTL and LHTL parts of the super waveguide, which form the energy vortices in the waveguide cross section.
Patent
Enhanced mimo communication systems using reconfigurable metasurface antennas and methods of using same
TL;DR: In this article, a MIMO communication system with a first antenna comprising a first cavity, a plurality of RF ports for generating a feed wave within the first cavity and a first plurality of sub-wavelength artificially structured material elements as arranged on a surface of the second cavity as RF radiators is presented.
Proceedings ArticleDOI
Status of the new Los Alamos UCN source
Klaus Kirch,T. J. Bowles,B. Fillipone,P. Geltenbort,Richard Hill,Masahiro Hino,S. Hoedl,Gary E. Hogan,T. M. Ito,T. Kawai,Steve K. Lamoreaux,Chen-Yu Liu,Jonathan W. Martin,Christopher Morris,A. Pichlmaier,Alexander Saunders,S. J. Seestrom,A. P. Serebrov,David R. Smith,B. Tipton,Masahiko Utsuro,A. R. Young,J. Yuan +22 more
TL;DR: In this paper, a new type of ultra-cold neutrons (UCN) source has been developed at Los Alamos, which combines a spallation target, a cold neutron flux trap, and a solid deuterium converter for the down-scattering of cold neutrons into the ultracold regime.
Journal ArticleDOI
Feeding Our Microbiota: Stimulation of the Immune/Semiochemical System and the Potential Amelioration of Non-Communicable Diseases
TL;DR: The role of probiotics and prebiotics in the stimulation of the immune system and of semiochemical production in the gut lumen is considered and the suggestion of an ingestible sensor, calibrated to the detection of such semiochemicals, is reprise to assess both the effectiveness of individual microbiomes and methods of amelioration of the associated non-communicable diseases.