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MRF volume 10 issue 5-6 Cover and Back matter
Ingmar Kallfass, Martin Vossiek, Matthias A. Hein
MRF volume 10 issue 5-6 Cover and Front matter
Ingmar Kallfass, Martin Vossiek, Matthias A. Hein
Octave bandwidth S- and C-band GaN-HEMT power amplifiers for future 5G communication
Felix Rautschke, Stefan May, Sebastian Drews, Daniel Maassen, Georg Boeck
In this contribution, a design methodology for octave-bandwidth power amplifiers (PA) for 5G communication systems using surface mount dual-flat-no-lead packaged gallium-nitride high-electron-mobility transistor devices is presented. Systematic source- and load-pull simulations have been used to find the optimum impedances across 75% fractional bandwidth for S- (1.9?4.2 GHz) and C-band (3.8?8.4 GH
Guest Editorial ? EuMW Special Issue
Ingmar Kallfass, Martin Vossiek, Matthias A. Hein
76?81 GHz LTCC antenna for an automotive miniature radar frontend
Frank Sickinger, Ernst Weissbrodt, Martin Vossiek
For a fully 360° detection around a vehicle, novel automotive radar system concepts consist of up to eight radar sensors. The existing sensor-mounting areas, such as front grill or bumper corners would no longer be sufficient. Therefore, additional mounting positions such as B-pillars and side skirts have to be considered, where the radar can observe the side area of the vehicle. However, these ne
A 1 to 32 GHz broadband multi-octave receiver for monolithic integrated vector network analyzers in SiGe technology
Marco Dietz, Andreas Bauch, Klaus Aufinger, Robert Weigel, Amelie Hagelauer
A multi-octave receiver chain is presented for the use in a monolithic integrated vector network analyzer. The receiver exhibits a very wide frequency range of 1?32 GHz, where the gain meets the 3 dB-criterion. The differential receiver consists of an ultra-wideband low noise amplifier, an active mixer and an output buffer and exhibits a maximum conversion gain (CG) of 16.6 dB. The main design goa
Industrial scale microwave applicator for high temperature alkaline hydrolysis of PET
Vasileios Ramopoulos, Guido Link, Sergey Soldatov, John Jelonnek
A microwave design for an industrial scale applicator of a continuous microwave assisted depolymerization of polyethylene terephthalate (PET) has been developed. The cavity is designed for use in combination with an Archimedean screw pump to transport the reaction material, surrounded by a cylindrical pipe with a diameter of 250 mm and a length of 250 mm at the 2.45 GHz ISM band. The proposed desi
EM simulation assisted parameter extraction for transferred-substrate InP HBT modeling
Tom K. Johansen, Ralf Doerner, Nils Weimann, Maruf Hossain, Viktor Krozer, Wolfgang Heinrich
In this paper, an electromagnetic (EM) simulation assisted parameter extraction procedure is demonstrated for accurate modeling of down-scaled transferred-substrate InP HBTs. The external parasitic network associated with via transitions and device electrodes is carefully extracted from calibrated three-dimensional EM simulations up to 325 GHz. Following an on-wafer multi-line Through-Reflect-Line
Reliability analysis of BiCMOS SiGe:C technology under aggressive conditions for emerging RF and mm-wave applications: proposal of reliability-aware circuit design methodology
Insaf Lahbib, Sidina Wane, Aziz Doukkali, Dominique Lesénéchal, Thanh Vinh Dinh, Laurent Leyssenne, Rosine Coq Germanicus, Françoise Bezerra, Guy Rolland, Cristian Andrei, Guy Imbert, Patrick Martin, Philippe Descamps, Guillaume Boguszewski, Damienne Bajon
In this contribution, the impact of extreme environmental conditions in terms of energy-level radiation of protons on silicon?germanium (SiGe)-integrated circuits is experimentally studied. Canonical representative structures including linear (passive interconnects/antennas) and non-linear (low-noise amplifiers) are used as carriers for assessing the impact of aggressive stress conditions on their
A new class of nondiffracting pulses based on focusing leaky waves
Walter Fuscaldo, Davide Comite, Alessandro Boesso, Paolo Baccarelli, Paolo Burghignoli, Alessandro Galli
In this work, we propose an azimuthally-invariant periodic leaky-wave (LW) radiator for the generation of Bessel beams and X-waves by means of backward cylindrical LWs at millimeter wavelengths. A rigorous framework is first outlined to understand the theoretical constraints of such a novel design. A specific attention is devoted to the impact of the attenuation constant on the focusing properties
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