The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform

U. C. Pernisz - One of the best experts on this subject based on the ideXlab platform.

  • Indium–tin–oxide-coated glass as Dichroic Mirror for far-infrared electromagnetic radiation
    Journal of Applied Physics, 2002
    Co-Authors: Tobias Bauer, J. S. Kolb, Emile Mohler, T. Loffler, Hartmut G. Roskos, U. C. Pernisz
    Abstract:

    We propose to utilize glass plates coated with indium tin oxide (ITO) as far-infrared Dichroic Mirrors, e.g., in optoelectronic terahertz spectroscopy for purposes such as electro-optic detection of terahertz radiation or in time-resolved experiments with pump pulses in the visible or near-infrared spectral range and probe pulses at terahertz frequencies. Measurements of the complex reflection and transmission coefficients in the spectral range from 0.1 to 2.8 THz indicate that commercially available ITO glass is suitable for this purpose.

  • Indium-tin-oxide-coated glass as Dichroic Mirror for far-infrared electromagnetic radiation
    Journal of Applied Physics, 2002
    Co-Authors: Tim Bauer, J. S. Kolb, Emile Mohler, T. Loffler, Hartmut G. Roskos, U. C. Pernisz
    Abstract:

    We propose to utilize glass plates coated with indiumtin oxide (ITO) as far-infrared Dichroic Mirrors, e.g., in optoelectronic terahertz spectroscopy for purposes such as electro-optic detection of terahertz radiation or in time-resolved experiments with pump pulses in the visible or near-infrared spectral range and probe pulses at terahertz frequencies. Measurements of the complex reflection and transmission coefficients in the spectral range from 0.1 to 2.8 THz indicate that commercially available ITO glass is suitable for this purpose.

J. S. Harris - One of the best experts on this subject based on the ideXlab platform.

W. Nickerson - One of the best experts on this subject based on the ideXlab platform.

  • Deep-space antenna for Rosetta mission: design and testing of the S/X band Dichroic Mirror
    IEEE Transactions on Antennas and Propagation, 2003
    Co-Authors: P. Besso, M. Bozzi, L. Perregrini, L.s. Drioli, W. Nickerson
    Abstract:

    The paper presents the design, fabrication, and testing of a Dichroic Mirror to be operated in the deep-space antenna of the European Space Agency in Perth, Australia. The Dichroic Mirror is designed for combining the signals in the S and X bands in the beam-waveguide feeding system of the 35 m reflector antenna. The final design consists of a thick metal plate of 2.5 m in diameter, perforated periodically with rounded cross-shaped holes. The design of such a structure required a trade off between electrical, mechanical, and technological constraints. The design and testing of a validation sample as well as of the final Mirror are discussed.

P. Besso - One of the best experts on this subject based on the ideXlab platform.

  • S/X/Ka-band Dichroic Mirrors for deep-space antennas
    2005 IEEE Antennas and Propagation Society International Symposium, 2005
    Co-Authors: P. Besso, M. Bozzi, M. Formaggi, S. Germani, L. Perregrini
    Abstract:

    The paper presents two solutions for the design of a 45/spl deg/-incidence S/X/Ka-band Dichroic Mirror for a European Space Agency ground station supporting deep space missions. The Dichroic Mirror is required to reflect completely in S band (2.025-2.3 GHz) and X band (7.145-8.5 GHz) and to be transparent in Ka band (31.8-34.7 GHz). The first Mirror, consisting of a thick metal screen perforated periodically with rounded rectangular holes, has been fabricated and measured. A second design, based on a metal screen with hexagonal holes, has also been investigated, and it has been proved that this solution provides better overall antenna performance.

  • Deep-space antenna for Rosetta mission: design and testing of the S/X band Dichroic Mirror
    IEEE Transactions on Antennas and Propagation, 2003
    Co-Authors: P. Besso, M. Bozzi, L. Perregrini, L.s. Drioli, W. Nickerson
    Abstract:

    The paper presents the design, fabrication, and testing of a Dichroic Mirror to be operated in the deep-space antenna of the European Space Agency in Perth, Australia. The Dichroic Mirror is designed for combining the signals in the S and X bands in the beam-waveguide feeding system of the 35 m reflector antenna. The final design consists of a thick metal plate of 2.5 m in diameter, perforated periodically with rounded cross-shaped holes. The design of such a structure required a trade off between electrical, mechanical, and technological constraints. The design and testing of a validation sample as well as of the final Mirror are discussed.

  • Deep space antenna for Rosetta mission: design of the S/X band Dichroic Mirror and analysis of the beam waveguide
    IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC URSI National Radio Science Meeting (Cat. N, 2001
    Co-Authors: P. Besso, M. Bozzi, L. Perregrini, L.s. Drioli, R. Madde, S. Salvatori
    Abstract:

    The design of a Dichroic Mirror operating in S/X band for the Rosetta mission is described. In order to achieve the required performance, a trade-off between electrical and mechanical problems was necessary. So the shape of the holes in the Dichroic plate was chosen according to good electrical performances in terms of cross-polar level and insertion losses and to acceptable mechanical deformations of the plate itself. Furthermore, a sample of the designed perforated Mirror was manufactured and measured in an anechoic chamber. Software (GRASP8) simulations evaluated the impact of the Dichroic plate on the electrical performances of the beam waveguide feeding the shaped Cassegrain antenna.

L. Scaccabarozzi - One of the best experts on this subject based on the ideXlab platform.