Refine
Year of publication
Document Type
- Article (5464) (remove)
Language
Has Fulltext
- no (5464) (remove)
Keywords
- avalanche (5)
- Earthquake (4)
- LAPS (4)
- field-effect sensor (4)
- frequency mixing magnetic detection (4)
- CellDrum (3)
- Heparin (3)
- capacitive field-effect sensor (3)
- hydrogen peroxide (3)
- magnetic nanoparticles (3)
- snow (3)
- tobacco mosaic virus (TMV) (3)
- Bacillus atrophaeus (2)
- Chemometrics (2)
- Datenschutz (2)
- Datenschutzgrundverordnung (2)
- Drinfeld modules (2)
- Empirical process (2)
- Field-effect sensor (2)
- Goodness-of-fit test (2)
Institute
- Fachbereich Medizintechnik und Technomathematik (1531)
- Fachbereich Wirtschaftswissenschaften (683)
- Fachbereich Elektrotechnik und Informationstechnik (617)
- Fachbereich Energietechnik (597)
- Fachbereich Chemie und Biotechnologie (585)
- INB - Institut für Nano- und Biotechnologien (523)
- Fachbereich Maschinenbau und Mechatronik (463)
- IfB - Institut für Bioengineering (426)
- Fachbereich Luft- und Raumfahrttechnik (364)
- Fachbereich Bauingenieurwesen (324)
- Solar-Institut Jülich (105)
- Fachbereich Architektur (76)
- Fachbereich Gestaltung (55)
- ZHQ - Bereich Hochschuldidaktik und Evaluation (39)
- ECSM European Center for Sustainable Mobility (33)
- Nowum-Energy (28)
- Sonstiges (23)
- Institut fuer Angewandte Polymerchemie (20)
- Freshman Institute (18)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (15)
Untersuchung eines hybriden EMV-Simulationsverfahrens anhand eines virtuellen Komponententests
(2003)
Effiziente Bestimmung der Kabelschirmdämpfung bei hohen Frequenzen in Modenverwirbelungskammern
(2006)
Design of a Measurement Setup for the Impedance of Low-Resistance Plate-Conductors in the RF-Range
(2006)
Normative Regulations
(2010)
Farbanalyse von gebackenen oder frittierten Nahrungsmitteln und Vorhersage des Acrylamid-Wertes
(2004)
Bildrestauration in der digitalen Radiographie mit Hilfe parallel arbeitender Signalprozessoren
(1998)
Scale braking in inclusive charged particle production by e--e+ annihilation. TASSO Collaboration
(1982)
K0 production in e+e− annihilations at 30 GeV center of mass energy. TASSO Collaboration
(1980)
Test of QED in e+e− annihilation at energies between 12 and 31.6 GeV. TASSO Collaboration
(1980)
π0 production by e+e− annihilation at 14 and 34 GeV c.m. energy . TASSO Collaboration
(1982)
Λ, Image production in e+e- annihilation at 33 GeV centre of mass energy. TASSO Collaboration
(1981)
Search for new sequential leptons in e+e- annihilation at petra energies. TASSO Collaboration
(1981)
Novel Algorithms for FMCW Range Finding with Microwaves. Stolle, R.; Heuermann, H.; Schiek, B.
(1995)
Robuster Algorithmus zur Streuparameterbestimmung für systemfehlerkorrigierte Netzwerkanalysatoren
(1991)
Scattering Parameter Measurements of Microstrip Devices using the Double-LNN Calibration Technique
(1994)
The double-LNN Calibration technique for scattering parameter measurements of microstrip devices
(1995)
Procedures for the Determination of the Scattering Parameters for Network Analyzer Calibration
(1993)
Novel balanced inductor for compact differential systems / Sadeghfam, Arash; Heuermann, Holger
(2004)
Enhanced system architecture for rugged wide band data transmission / Sadeghfam, A. ; Heuermann, H.
(2009)
Advanced on-wafer multiport calibration methods for mono- and mixed-mode device characterization
(2004)
Fundamentals and ignition of a microplasma at 2.45 GHZ / Holtrup, Stephan ; Heuermann, Holger
(2009)
This paper presents a new SIMO radar system based on a harmonic radar (HR) stepped frequency continuous wave (SFCW) architecture. Simple tags that can be electronically individually activated and deactivated via a DC control voltage were developed and combined to form an MO array field. This HR operates in the entire 2.45 GHz ISM band for transmitting the illumination signal and receives at twice the stimulus frequency and bandwidth centered around 4.9 GHz. This paper presents the development, the basic theory of a HR system for the characterization of objects placed into the propagation path in-between the radar and the reflectors (similar to a free-space measurement with a network analyzer) as well as first measurements performed by the system. Further detailed measurement series will be made available later on to other researchers to develop AI and machine learning based signal processing routines or synthetic aperture radar algorithms for imaging, object recognition, and feature extraction. For this purpose, the necessary information is published in this paper. It is explained in detail why this SIMO-HR can be an attractive solution augmenting or replacing existing systems for radar measurements in production technology for material under test measurements and as a simplified MIMO system. The novel HR transfer function, which is a basis for researchers and developers for material characterization or imaging algorithms, is introduced and metrologically verified in a well traceable coaxial setup.
Chain scattering parameters or T-parameters are a useful tool for calculating cascaded two-ports. With the increasing importance of mixed-mode S-parameters, a need for converting the T-parameters from their unbalanced form into a balanced form emerges for suiting both common and differential mode waves, as well as the mode conversion. This paper presents the derivation of the equations for transformations between mixed-mode S- and T-parameters for a mixed-mode two-port. Although derived in a way very similar to monomode T-parameters, no simplifications were necessary. Measurement results exemplify the quality of the T-parameter transformation under real-life conditions.
Upcoming gasoline engines should run with a larger number of fuels beginning from petrol over methanol up to gas by a wide range of compression ratios and a homogeneous charge. In this article, the microwave (MW) spark plug, based on a high-speed frequency hopping system, is introduced as a solution, which can support a nitrogen compression ratio up to 1:39 in a chamber and more. First, an overview of the high-speed frequency hopping MW ignition and operation system as well as the large number of applications are presented. Both gives an understanding of this new base technology for MW plasma generation. Focus of the theoretical part is the explanation of the internal construction of the spark plug, on the achievable of the high voltage generation as well as the high efficiency to hold the plasma. In detail, the development process starting with circuit simulations and ending with the numerical multiphysics field simulations is described. The concept is evaluated with a reference prototype covering the frequency range between 2.40 and 2.48 GHz and working over a large power range from 20 to 200 W. A larger number of different measurements starting by vector hot-S11 measurements and ending by combined working scenarios out of hot temperature, high pressure and charge motion are winding up the article. The limits for the successful pressure tests were given by the pressure chamber. Pressures ranged from 1 to 39 bar and charge motion up to 25 m/s as well as temperatures from 30◦ to 125◦.
Praezise Streuparametermessungen sind der Schluessel zur Modellierung elektrischer Schaltungen
(1997)