Search Results - "Muller, Andrei"

Temperature dependence of reconfigurable bandstop filters using vanadium dioxide switches by Muller, Andrei A., Cavalieri, Matteo, Ionescu, Adrian M.

“…In this Letter, we report and investigate the temperature dependency of various radio frequency (RF) parameters for a fabricated reconfigurable bandstop filter…”
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Extended Capabilities of the 3-D Smith Chart With Group Delay and Resonator Quality Factor by Muller, Andrei A., Sanabria-Codesal, Esther, Moldoveanu, Alin, Asavei, Victor, Lucyszyn, Stepan

“…This paper extends the capabilities of the 3-D Smith chart for representing positive and negative differential-phase group delay and the associated loaded…”
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A Reconfigurable Inductor Based on Vanadium Dioxide Insulator-to-Metal Transition by Casu, Emanuele Andrea, Muller, Andrei A., Cavalieri, Matteo, Fumarola, Alessandro, Ionescu, Adrian Mihai, Fernandez-Bolanos, Montserrat

“…This letter introduces a reconfigurable planar square-coil-shaped inductor exploiting as the tuning mechanism the insulator-to-metal transition (IMT) of a…”
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3D Smith charts scattering parameters frequency-dependent orientation analysis and complex-scalar multi-parameter characterization applied to Peano reconfigurable vanadium dioxide inductors by Muller, Andrei A., Moldoveanu, Alin, Asavei, Victor, Khadar, Riyaz A., Sanabria-Codesal, Esther, Krammer, Anna, Fernandez-Bolaños, Montserrat, Cavalieri, Matteo, Zhang, Junrui, Casu, Emanuele, Schuler, Andreas, Ionescu, Adrian M.

“…Recently, the field of Metal-Insulator-Transition (MIT) materials has emerged as an unconventional solution for novel energy efficient electronic functions,…”
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Vanadium Oxide Bandstop Tunable Filter for Ka Frequency Bands Based on a Novel Reconfigurable Spiral Shape Defected Ground Plane CPW by Casu, Emanuele Andrea, Muller, Andrei A., Fernandez-Bolanos, Montserrat, Fumarola, Alessandro, Krammer, Anna, Schuler, Andreas, Ionescu, Adrian M.

“…This paper proposes and validates a new principle in coplanar waveguide (CPW) bandstop filter tuning by shortcutting defected ground plane (DGS) inductor…”
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3D Smith Chart Constant Quality Factor Semi-Circles Contours for Positive and Negative Resistance Circuits by Asavei, Victor, Muller, Andrei A., Sanabria-Codesal, Esther, Moldoveanu, Alin, Ionescu, Adrian M.

“…The article firstly proves that the constant quality factor (<inline-formula> <tex-math notation="LaTeX">Q </tex-math></inline-formula>) contours for passive…”
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Special Section Proposal Tunable Devices for Modern Communications: Materials, Integration, Modeling, and Applications by Muller, Andrei, Ziolkowski, Richard W., Kim, Jusung, Blokhina, Elena, Dragoman, Mircea, Bozzi, Maurizio

“…The tunability of devices is a prerequisite for modern communications: the next generation of systems operating at RF, microwave, millimeter-wave, THz, and…”
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Tunable RF Phase Shifters Based on Vanadium Dioxide Metal Insulator Transition by Casu, Emanuele Andrea, Ionescu, Adrian M., Oliva, Nicolo, Cavalieri, Matteo, Muller, Andrei A., Fumarola, Alessandro, Vitale, Wolfgang A., Krammer, Anna, Schuler, Andreas, Fernandez-Bolanos, Montserrat

“…This paper presents the design, fabrication, and electrical characterization of a reconfigurable RF capacitive shunt switch that exploits the electro-thermally…”
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An RF-MEMS-Based Digitally Tunable SIW Filter in X-Band for Communication Satellite Applications by El Mostrah, Abbas, Muller, Andrei, Favennec, Jean-François, Potelon, Benjamin, Manchec, Alexandre, Rius, Eric, Quendo, Cédric, Clavet, Yann, Doukhan, Francis, Le Nezet, Johann

“…This paper presents a digitally tunable SIW (substrate integrated waveguide) filter designed for X-band, based on RF-MEMS (radio frequency…”
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A 3-D Smith Chart Based on the Riemann Sphere for Active and Passive Microwave Circuits by Muller, A A, Soto, P, Dascalu, D, Neculoiu, D, Boria, V E

“…This letter proposes a spherical 3-D Smith Chart suitable for representing both active and passive microwave circuits. Using the mathematical concept of the…”
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A Review and Mathematical Treatment of Infinity on the Smith Chart, 3D Smith Chart and Hyperbolic Smith Chart by Pérez-Peñalver, María, Sanabria-Codesal, Esther, Moldoveanu, Florica, Moldoveanu, Alin, Asavei, Victor, A. Muller, Andrei, Ionescu, Adrian

“…This work describes the geometry behind the Smith chart, recent 3D Smith chart tool and previously reported conceptual Hyperbolic Smith chart. We present the…”
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Computational Cost Reduction for N+2 Order Coupling Matrix Synthesis Based on Desnanot-Jacobi Identity by Muller, Andrei A., Sanabria-Codesal, Esther, Lucyszyn, Stepan

“…Matrix inversion is routinely performed in computational engineering, with coupling matrix filter synthesis considered here as just one of many example…”
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Flexible and efficient computer-aided design tool for advanced comb-line rectangular waveguide filters by San-Blas, Ángel A., Vidal, Ana, Muller, Andrei A., Soto, Pablo, Mira, Fermín, Pérez-Soler, Francisco Javier, Gimeno, Benito, Boria, Vicente E.

“…ABSTRACT A very flexible and efficient computer‐aided design (CAD) tool, specifically suited for advanced comb‐line rectangular waveguide filters, is presented…”
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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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Radio Frequency Temperature Transducers Based on Insulator-Metal Phase Transition in VO2 and Ge-Doped VO2 ALD Thin Films by Muller, Andrei A., Khadar, Riyaz, Niang, Kham M., Bai, Guandong, Matioli, Elison, Robertson, John, Ionescu, Adrian M.

“…The need for new accurate temperature monitoring is becoming high, especially with the proliferation of IoT monitoring and biological applications. In this…”
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Radio-Frequency Characteristics of Ge-Doped Vanadium Dioxide Thin Films with Increased Transition Temperature by Muller, Andrei, Khadar, Riyaz A, Abel, Tobias, Negm, Nour, Rosca, Teodor, Krammer, Anna, Cavalieri, Matteo, Schueler, Andreas, Qaderi, Fatemeh, Bolten, Jens, Lemme, Max, Stolichnov, Igor, Ionescu, Adrian M

“…This work investigates and reports on the radio-frequency (rf) behavior in the frequency range of 5–35 GHz of germanium-doped vanadium dioxide (Ge-doped VO2)…”
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A Novel Reconfigurable CMOS Compatible Ka Band Bandstop Structure Using Split-Ring Resonators and Vanadium Dioxide (VO2) Phase Change Switches by Muller, Andrei A., Abdul Khadar, Riyaz, Casu, Emanuele A., Krammer, Anna, Cavalieri, Matteo, Schuler, Andreas, Zhang, Junrui, Ionescu, Adrian M.

“…The article presents the design, fabrication and characterization of a novel complementary metal-oxide-semiconductor (CMOS) compatible reconfigurable Ka band…”
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An RF-MEMS-Based Digitally Tunable SIW Filter in X-Band for Communication Satellite Applications by El Mostrah, Abbas, Muller, Andrei, Favennec, Jean-François, Potelon, Benjamin, Manchec, Alexandre, Rius, Eric, Quendo, Cédric, Clavet, Yann, Doukhan, Francis, Le Nezet, Johann

“…This paper presents a digitally tunable SIW (substrate integrated waveguide) filter designed for X-band, based on RF-MEMS (radio frequency…”
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Flexible and efficient computer-aided design tool for advanced comb-line rectangular waveguide filters: Flexible and Efficient Computer-Aided Design Tool by San-Blas, Ángel A., Vidal, Ana, Muller, Andrei A., Soto, Pablo, Mira, Fermín, Pérez-Soler, Francisco Javier, Gimeno, Benito, Boria, Vicente E.

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La carta de Smith y sus generalizaciones by Müller, Andrei A., Pérez-Peñalver, M. Jose, Sanabria Codesal, Esther

“…La carta de Smith es una de la herramienta clásica en ingeniería de microondas, fue presentada por Philip Hagar Smith en 1939. Esta carta está basada en la…”
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