1–20 of 363 hits
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    1 THz harmonic generation from sub-THz oscillating resonant tunnelling diode

    Orihashi, N. / Suzuki, S. / Asada, M. | IEEE | 2005
    fundamental and 3rd harmonic frequencies were 342 GHz and 1.02 THz, respectively, for 50-micron-long antenna. Maximum output power of the fundamental ...

    2D electromagnetic bandgap slab structures for integrated millimetre wave circuits

    Klein, N. / Schuster, M. / Antoniuk, O. et al. | IEEE | 2005
    frequencies made from high resistive silicon. We investigate both waveguiding modes of a line defect and resonant modes of a point defect with respect ...

    3D imaging system based on FMCW millimeter wave radar

    Korneev, D. / Bogdanov, L. / Nalivkin, A. et al. | IEEE | 2005
    3D radar imaging systems are highly requested for use in guidance system for aircraft landing and shipping navigation. These systems ...

    3D imaging with a terahertz quantum cascade laser

    Nguyen, K.L. / Johns, M.L. / Gladden, L.F. et al. | IEEE | 2005
    revealing both their external and internal structures. ...

    170 GHz, 2 MW coaxial cavity gyrotron - design verification of the new RF output system

    Rzesnicki, T. / Jin, J. / Piosczyk, B. et al. | IEEE | 2005

    170 GHz, 2 MW, CW coaxial cavity gyrotron - experimental verification of the design

    Piosczyk, B. / Rzesnicki, T. / Dammertz, G. et al. | IEEE | 2005
    components has been verified experimentally with a short pulse (/spl sim/ few ms) coaxial gyrotron. This tube utilizes the same cavity and same quasi ...

    600 GHz GaAs Schottky diode mixer in split-block technology

    Schur, J. / Biber, S. / Cojocari, O. et al. | IEEE | 2005
    GaAs Schottky diode on a quartz substrate. Two different diode designs used for this mixer design are compared. The overall performance of the ...

    A 300 GHz collective scattering system for low temperature plasmas

    Hardin, R.A. / Heard, J. / Scime, E. et al. | IEEE | 2005
    A compact 300 GHz homodyne collective scattering system is being installed on the WVU helicon plasma source. The purpose of the system is ...

    A 300-GHz heterostructure barrier varactor (HBV) frequency septupler

    Qun Xiao, / Hesler, J.L. / Yiwei Duan, et al. | IEEE | 2005
    Heterostructure barrier varactor (HBV) frequency septuplers for the WR-3 waveguide band have been designed, fabricated and tested. The HBV ...

    Accurate measurement system for low loss materials

    Afsar, M.N. / Shu Chen, / Yong Wang, | IEEE | 2005
    -absorbing materials. Two techniques are employed, namely, frequency-variation and cavity-length-variation techniques. High resolution can be reached ...

    A Compact Gas Spectroscopy Sensor System Based on a Voltage-Frequency-Tuned 245 GHz SiGe Transmitter and Receiver

    Free access
    Rothbart, Nick / Schmalz, K. / Borngräber, J. et al. | German Aerospace Center (DLR) | 2016
    A compact terahertz gas spectroscopy sensor system based on a 245 GHz transmitter (TX) and receiver (RX) fabricated in SiGe technology is ...
    Keywords: millimeter waves

    A demonstrator approach for the technology of a passive millimeterwave imaging system and the related image processing

    Notel, D. / Huck, J. / Essen, H. et al. | IEEE | 2005
    information on the contrasts achievable outside and under indoor conditions. During the course of the experiments the scanning algorithms could be ...

    A general quantitative identification algorithm of subsurface defect for infrared thermography

    Chunli Fan, / Fengrui Sun, / Li Yang, | IEEE | 2005
    Based on the Levenberg-Marquardt (L-M) method, a new general algorithm of estimating the size, depth and thermal conductivity of the ...

    A high pulsed power frequency doubler to 190 GHz

    Porterfield, D. / Crowe, T. / Bishop, W. et al. | IEEE | 2005
    state-of-the-art power and fixed-tuned bandwidth at millimeter-wave frequencies. The waveguide structure is modified to provide ample room for ...

    A method of waveguide mode converter synthesis

    Denisov, G.G. / Sobolev, D.I. | IEEE | 2005
    date (see, e.g., [B. Plaum, et al., 2000]) were in some respects unsatisfactory, both in regard to converter parameters, such as the length and ...

    An adaptive spectroellipsometric technology for the precise real-time measurements of the quality of natural and waste waters

    Mkrtchyan, F.A. / Krapivin, V.F. / Kovalev, V.I. et al. | IEEE | 2005
    expensive standard polarization elements. Principal possibility exists of use of optical and infrared bands with wavelength up to 20 Me for studies ...

    Analysis of a Fabry-Perot open resonator

    Yu, G. / Dutta, J.M. / Jones, C.R. | IEEE | 2005
    A numerical simulation has been carried out on a Fabry-Perot open resonator excited through a beam splitter and loaded with a plate. The ...

    Analytical theory of microwave sources with transversely nonuniform interaction space

    Nusinovich, G.S. / Sinitsyn, O.V. | IEEE | 2005
    This paper presents a simple analytical theory that can be used for evaluating the effect of transverse nonuniformity of the RF field on ...

    An electrically driven mid-infrared solid state modulator

    Rutt, H.N. / Uppal, S. / Chong Yew Lee, | IEEE | 2005
    Detailed device fabrication and operation modelling has been undertaken for a mid-infrared, 8-14/spl mu/m band modulator based on a high ...