Search Results - "Djurhuus, T."

Oscillator Phase Noise: A Geometrical Approach by Djurhuus, T., Krozer, V., Vidkjaer, J., Johansen, T.K.

“…We construct a coordinate-independent description of oscillator linear response through a decomposition scheme derived independently of any Floquet theoretic…”
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Nonlinear analysis of a cross-coupled quadrature harmonic oscillator by Djurhuus, T., Krozer, V., Vidkjaer, J., Johansen, T.K.

“…The dynamic equations governing the cross-coupled quadrature harmonic oscillator are derived assuming quasi-sinusoidal operation. This allows for an…”
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Trade-off between phase-noise and signal quadrature in unilaterally coupled oscillators by Djurhuus, T., Krozer, V., Vidkjar, J., Johansen, T.K.

“…We present a comprehensive nonlinear analysis of coupled oscillators and examine the trade-off between phase-noise of the oscillator and the quadrature…”
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Theory of Injection-Locked Oscillator Phase Noise by Djurhuus, T, Krozer, V

“…The paper describes the development of a model for the calculation of noise-driven phase response of an injection-locked oscillator perturbed by Gaussian white…”
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A High Conversion-Gain [Formula Omitted]-Band InP DHBT Subharmonic Mixer Using LO Frequency Doubler by Johansen, T K, Vidkjr, J, Krozer, V, Konczykowska, A, Riet, M, Jorge, F, Djurhuus, T

“…The paper presents analysis and design of a Q-band subharmonic mixer (SHM) with high conversion gain. The SHM consists of a local oscillator (LO) frequency…”
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Ultra-wideband monolithic microwave integrated circuit solutions in SiGe and GaAs technology by Krozer, V., Johansen, T.K., Djurhuus, T., Vidkjaer, J.

“…Ultra-widehand analog monolithic microwave integrated circuits for advanced RF front-ends are presented using SiGe and GaAs technology. We demonstrate the…”
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AM to PM noise conversion in a cross-coupled quadrature harmonic oscillator by Djurhuus, Torsten, Krozer, Viktor, Vidkjær, Jens, Johansen, Tom K.

“…We derive the dynamic equations governing the cross‐coupled quadrature oscillator, perturbed by noise, leading to an expression for the close‐in phase noise…”
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Physical based Schottky barrier diode modeling for THz applications by Yan, L., Krozer, V., Michaelsen, R., Djurhuus, T., Johansen, T. K.

“…In this work, a physical Schottky barrier diode model is presented. The model is based on physical parameters such as anode area, Ohmic contact area, doping…”
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Substrate effects in wideband SiGe HBT mixer circuits by Johansen, T.K., Krozer, V., Vidkjaer, J., Djurhuus, T.

“…In this paper, the influence from substrate effects on the performance of wideband SiGe HBT mixer circuits is investigated. Equivalent circuit models including…”
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Wideband monolithic microwave integrated circuit frequency converters with GaAs mHEMT technology by Krozer, V., Johansen, T.K., Djurhuus, T., Vidjaer, J.

“…We present monolithic microwave integrated circuit (MMIC) frequency converter, which can be used for up and down conversion, due to the large RF and IF port…”
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Wideband monolithic microwave integrated circuit frequency converters with GaAs mHEMT technology by Krozer, V., Johansen, T.K., Djurhuus, T., Vidkjaer, J.

“…We present monolithic microwave integrated circuit (MMIC) frequency converter, which can be used for up and down conversion, due to the large RF and IF port…”
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Ultra-broadband Nonlinear Microwave Monolithic Integrated Circuits in SiGe, GaAs and InP by Krozer, V., Johansen, T.K., Djurhuus, T., Chenhui Jiang, Vidkjaer, J.

“…Analog MMIC circuits with ultra-wideband operation are discussed in view of their frequency limitation and different circuit topologies. Results for designed…”
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