Search Results - "Muller, Alexandru"

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    Sezawa Propagation Mode in GaN on Si Surface Acoustic Wave Type Temperature Sensor Structures Operating at GHz Frequencies by Muller, Alexandru, Giangu, Ioana, Stavrinidis, Antonis, Stefanescu, Alexandra, Stavrinidis, George, Dinescu, Adrian, Konstantinidis, George

    Published in IEEE electron device letters (01-12-2015)
    “…This letter investigates the applicability of Sezawa propagation mode for various GaN/Si surface acoustic wave (SAW) temperature sensor structures. First,…”
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    Journal Article
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    Influence of Au-Based Metallization on the Phase Velocity of GaN on Si Surface Acoustic Wave Resonators by Stefanescu, Alexandra, Muller, Alexandru, Giangu, Ioana, Dinescu, Adrian, Konstantinidis, George

    Published in IEEE electron device letters (01-03-2016)
    “…This letter presents a comparison between the phase velocity of Al and Ti/Au metallized GaN/Si-based surface acoustic wave structures. The resonance frequency…”
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    Journal Article
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    Investigation of Temperature Sensing Capabilities of GaN/SiC and GaN/Sapphire Surface Acoustic Wave Devices by Boldeiu, George, Ponchak, George E., Nicoloiu, Alexandra, Nastase, Claudia, Zdru, Ioana, Dinescu, Adrian, Muller, Alexandru

    Published in IEEE access (2022)
    “…This paper proposes high sensitivity temperature sensors based on single port surface acoustic wave (SAW) devices with GHz resonance frequencies, developed on…”
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    Journal Article
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    SAW Devices Manufactured on GaN/Si for Frequencies Beyond 5 GHz by Müller, Alexandru, Neculoiu, Dan, Konstantinidis, George, Deligeorgis, George, Dinescu, Adrian, Stavrinidis, Antonis, Cismaru, Alina, Dragoman, Mircea, Stefanescu, Alexandra

    Published in IEEE electron device letters (01-12-2010)
    “…This letter describes the manufacture and characterization of surface acoustic wave (SAW) devices on GaN/Si devoted to applications above the 5-GHz frequency…”
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    Journal Article
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    Parametric Excitation and Instabilities of Spin Waves Driven by Surface Acoustic Waves by Geilen, Moritz, Verba, Roman, Hamadeh, Abbass, Nicoloiu, Alexandra, Narducci, Daniele, Dinescu, Adrian, Ender, Milan, Mohseni, Morteza, Ciubotaru, Florin, Weiler, Mathias, Müller, Alexandru, Hillebrands, Burkard, Adelmann, Christoph, Pirro, Philipp

    Published in Advanced Physics Research (19-10-2024)
    “…Abstract The parametric excitation of spin waves by coherent surface acoustic waves in metallic magnetic thin film structures is demonstrated experimentally…”
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    Journal Article
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    Millimeter-Wave Identification-A New Short-Range Radio System for Low-Power High Data-Rate Applications by Pursula, P., Vaha-Heikkila, T., Muller, A., Neculoiu, D., Konstantinidis, G., Oja, A., Tuovinen, J.

    “…The radio-frequency identification (RFID) concept is expanded to millimeter-wave frequencies and millimeter-wave identification (MMID) in this paper. The MMID…”
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    Journal Article
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    6.3-GHz Film Bulk Acoustic Resonator Structures Based on a Gallium Nitride/Silicon Thin Membrane by Muller, A., Neculoiu, D., Konstantinidis, G., Stavrinidis, A., Vasilache, D., Cismaru, A., Danila, M., Dragoman, M., Deligeorgis, G., Tsagaraki, K.

    Published in IEEE electron device letters (01-08-2009)
    “…This letter describes the fabrication and the morphological and microwave characterization of film bulk acoustic resonator structures, supported on very thin…”
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    Journal Article
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    Fully resonant magneto-elastic spin-wave excitation by surface acoustic waves under conservation of energy and linear momentum by Geilen, Moritz, Nicoloiu, Alexandra, Narducci, Daniele, Mohseni, Morteza, Bechberger, Moritz, Ender, Milan, Ciubotaru, Florin, Hillebrands, Burkard, Müller, Alexandru, Adelmann, Christoph, Pirro, Philipp

    Published in Applied physics letters (13-06-2022)
    “…We report on the resonant excitation of spin waves in micro-structured magnetic thin films by short-wavelength surface acoustic waves (SAWs). The spin waves as…”
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    Journal Article
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    Interference of co-propagating Rayleigh and Sezawa waves observed with micro-focused Brillouin light scattering spectroscopy by Geilen, Moritz, Kohl, Felix, Nicoloiu, Alexandra, Müller, Alexandru, Hillebrands, Burkard, Pirro, Philipp

    Published in Applied physics letters (23-11-2020)
    “…We use micro-focused Brillouin light scattering spectroscopy (BLS) to investigate surface acoustic waves (SAWs) in a GaN layer on a Si substrate at GHz…”
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    Journal Article
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    Thin polyimide films for dielectric interlayer application by Damaceanu, Mariana-Dana, Rusu, Radu-Dan, Bruma, Maria, Muller, Alexandru

    “…Thin films based on siloxane-containing polyimides have been prepared by the drop-casting technique. These films with thickness of tens of micrometers were…”
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    Conference Proceeding
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    The Behavior of Gold Metallized AlN/Si- and AlN/Glass-Based SAW Structures as Temperature Sensors by Nicoloiu, Alexandra, Stan, George E., Nastase, Claudia, Boldeiu, George, Besleaga, Cristina, Dinescu, Adrian, Muller, Alexandru

    “…Thin AlN piezoelectric layers have been deposited on high resistivity Si and glass substrates by reactive RF magnetron sputtering, in order to manufacture…”
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    Journal Article
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    Design flow for a SiGe BiCMOS based power amplifier by Bozanic, M., Sinha, S., du Plessis, M., Muller, A.

    “…This paper presents a streamlined design flow for an integrated power amplifier. For a given set of amplifier specifications and BiCMOS process parameters, a…”
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    Conference Proceeding
  14. 14

    GaN Membrane Supported SAW Pressure Sensors With Embedded Temperature Sensing Capability by Muller, Alexandru, Konstantinidis, George, Giangu, Ioana, Adam, Gina C., Stefanescu, Alexandra, Stavrinidis, Antonis, Stavrinidis, George, Kostopoulos, Athanasios, Boldeiu, George, Dinescu, Adrian

    Published in IEEE sensors journal (15-11-2017)
    “…This paper presents the fabrication and characterization of a GHz operating surface acoustic wave (SAW)-based pressure sensor on a 1.2-μm-thin GaN membrane…”
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    Journal Article
  15. 15

    Membrane supported circuits for millimeter wave applications by Neculoiu, Dan, Bunea, Alina-Cristina, Muller, Alexandru

    “…This paper presents a series of passive millimeter wave membrane supported circuits recently developed by the authors. Double folded slot antennas, band pass…”
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    Conference Proceeding
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    Dielectric properties of thin polyimide films by Rusu, Radu-Dan, Damaceanu, Mariana-Dana, Bruma, Maria, Müller, Alexandru

    “…Heterocyclic polyimides based on bis (ketonaphthalic) dianhydrides and aromatic diamines containing oxadiazole rings were prepared and their dielectric…”
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    Conference Proceeding
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    Pressure sensors based on high frequency operating GaN FBARs by Giangu, Ioana, Stavrinidis, George, Stefanescu, Alexandra, Stavrinidis, Antonis, Dinescu, Adrian, Konstantinidis, George, Muller, Alexandru

    “…In this paper, first experiments regarding characterization of the GaN based FBAR (Film Bulk Acoustic Resonator) structures as pressure sensors are presented…”
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    Conference Proceeding Journal Article
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    Novel micromachined lumped band pass filter for 5.2 GHz WLAN applications by Muller, Andrei A., Neculoiu, Dan, Cismaru, Alina, Pons, Patrik, Plana, Robert, Dascalu, Dan, Muller, Alexandru

    “…This paper describes the design, manufacturing and experiments of a lumped element band pass filter in a new topology. The design starts from a second order…”
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    Journal Article
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    High performance thin film bulk acoustic resonator covered with carbon nanotubes by Dragoman, M., Muller, A., Neculoiu, D., Vasilache, D., Konstantinidis, G., Grenier, K., Dubuc, D., Bary, L., Plana, R., Flahaut, E.

    Published in Applied physics letters (02-10-2006)
    “…This letter presents experimental results concerning a thin film bulk acoustic wave resonator realized on a thin GaN membrane and covered with a thin film of…”
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    Journal Article