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Broadband guided microwave and millimeter wave transitions and their applications. / 宽带微波毫米波传输线转换器及其应用 / CUHK electronic theses & dissertations collection / Kuan dai wei bo hao mi bo chuan shu xian zhuan huan qi ji qi ying yongJanuary 2011 (has links)
Huang, Xiaobo. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 108-111). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.
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Design and development of passive millimeter-wave imaging systemsStein, Edwin Lee, Jr. January 2009 (has links)
Thesis (M.S.)--University of Delaware, 2009. / Principal faculty advisor: Dennis W. Prather, Dept. of Electrical & Computer Engineering. Includes bibliographical references.
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MEMS tuning and matching circuits, and millimeter wave on-wafer measurements /Vähä-Heikkilä, Tauno. January 2006 (has links) (PDF)
Diss. Teknillinen korkeakoulu, 2006. / Myös verkkojulkaisuna.
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Design, characterization, and fabrication of microwave and millimeter-wave antennasHwang, Timothy H. January 2007 (has links)
Thesis (M.E.E.)--University of Delaware, 2006. / Principal faculty advisor: Dennis W. Prather, Dept. of Electrical and Computer Engineering. Includes bibliographical references.
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STAR FORMATION IN THE RHO OPHIUCHI DARK CLOUDWilking, Bruce Alan January 1981 (has links)
New and sensitive millimeter-wave and near-infrared observation have been performed in the central regions of the ρ Ophiuchi dark cloud. High spatial resolution observations of the optically thin C¹⁸O emission lines are shown to be free of self-absorption. They permit the first accurate determination of the distribution of molecular gas and allow us to estimate the mass and visual extinction in the cloud. A completely sampled near-infrared survey of a 105 sq. arcmin area which encloses the region of highest visual extinction has revealed twenty objects (sixteen were previously unknown). We show that these objects are young stars embedded in the cloud. Synthesizing our new observations with existing radio and infrared data, we have made a detailed study of the energetics and star formation process within the ρ Oph cloud. This dissertation concludes that the high temperatures of the molecular gas cannot be due to collisions with warm dust. The feasibility of alternate heat sources such as cosmic-ray ionization, shocks, and the distortion of magnetic fields are discussed. We derive high star formation efficiencies (32-46%) in the centrally condensed core of the ρ Oph cloud which suggests that it is forming a bound open cluster. The most consistent interpretation of our data requires that an efficient burst of star formation has produced a relatively large (with respect to the initial mass function) population of low luminosity stars in ρ Oph within the last 3 million years. At this present rate of star formation, most of the molecular gas will be converted into stars in about 10⁷ yr. yielding a bound cluster. Unless this rate rapidly decreases with time, the duration of star formation in the (rho) Oph cluster (10 million years) will be considerably shorter than that suggested for the Pleiades cluster (175 m. y). The lack of stars in the 3-10 M(⊙) range indicates that subsequent star formation must be dominated by more massive stars if the stellar mass spectrum of the ρ Oph cluster is to resemble that of the conventional initial mass function. The youth of the ρ Oph cluster suggests that it may be the most recent episode of star formation in the Sco-Cen OB association.
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Study of thru-reflect-line calibration : applications to microwave/millimeter wave characterizationPham, Anh-Vu Huynh 12 1900 (has links)
No description available.
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Millimeter wave far-field imaging via optical upconversion techniquesSamluk, Jesse Paul. January 2008 (has links)
Thesis (M.S.E.C.E.)--University of Delaware, 2008. / Principal faculty advisor: . Includes bibliographical references.
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A Ka-band switch-LNA MMIC for radiometry applicationsAlvarado, Miguel A., January 2008 (has links)
Thesis (M.S.E.C.E.)--University of Massachusetts Amherst, 2008. / Includes bibliographical references (p. 117-119).
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The AzTEC millimeter-wave camera design, integration, performance, and the characterization of the (sub-)millimeter galaxy population /Austermann, Jason Edward, January 2009 (has links)
Thesis (Ph. D.)--University of Massachusetts Amherst, 2009. / Open access. Includes bibliographical references (p. 179-184). Print copy also available.
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Optical techniques for millimeter-wave detection and imagingSchuetz, Christopher Arnim. January 2007 (has links)
Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: Dennis W. Prather, Dept. of Electrical and Computer Engineering. Includes bibliographical references.
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