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Non-Contacting Moisture Sensing using a Dedicated UWB Time Domain Instrument
Henning Mextorf, Frank Daschner, Mike Kent, and Reinhard Knöchel
Non-Contacting Moisture Sensing using a Dedicated UWB Time Domain Instrument Henning Mextorf, Frank Daschner, Mike Kent, and Reinhard Knöchel Microwave Group, University of Kiel, Kiel, 24143, Germany Abstract--This paper presents a method for the moisture determination of small and irregularly shaped objects independent of their shape and orientation. The objects under test are illuminated by UWB-
120 GHz Phased-Array Circuits in 0.25 um SiGeBiCMOS Technology
Mohamed Elkhouly, Srdjan Glisic, Frank Ellinger and J. C. Scheytt
120 GHz Phased-Array Circuits in 0.25 m SiGe BiCMOS Technology Mohamed Elkhouly , Srdjan Glisic , Frank Ellinger and J. C. Scheytt CHAIR Frankfurt (Oder), Germany FOR CIRCUIT DESIGN AND NETWORK THEORY Dresden University of Technology, Dresden, Germany IHP, Abstract--This paper describes the design of D-band phasedarray circuits in 0.25 m technology. The first part describes the design of the
Diplexer in 50-W Technique for the Joint Generation of Duobinary, Bipolar and Modified Duobinary Gbit/s Signals
Bernhard Enning, Melanie Kroll, Finn Puck
Diplexer in 50- Technique for the Joint Generation of Duobinary, Bipolar and Modified Duobinary Gbit/s Signals Bernhard Enning, Melanie Kroll, Finn Puck Institute for Communications Technology, Flensburg University of Applied Sciences, 24943 Flensburg, Germany, enning-fh-flensburg.de, www.fh-flensburg.de/kt Abstract--Analyzing the properties of a broadband diplexer circuit in delay line technique
Directivity Tuning of Microstrip Couplers
Johannes Müller, Nhat M. Pham, and Arne F. Jacob
Directivity Tuning of Microstrip Couplers Johannes M¨ ller # , Nhat M. Pham , and Arne F. Jacob u Now with: # SILVER-ATENA, Electronic Systems Engineering GmbH Hein-Sass-Weg 36, 21129 Hamburg, Germany, Tel: +49 40 743 83107, email: j.mueller-silver-atena.de Institut f¨ r Hochfrequenztechnik, Techn. Univ. Hamburg-Harburg, 21073 Hamburg, Germany u Tel: +49 40 42878 2758, email: minh.pham-tu-harb
Estimating the Phase Noise Spectrum of Oscillator Signals: A Novel Method
Michael H.W. Hoffmann
Estimating the Phase Noise Spectrum of Oscillator Signals: A Novel Method Michael H.W. Hoffmann Institute of Microwave Techniques, University of Ulm, D-89069 Ulm, Germany Abstract--Prediction of oscillator phase noise is highly desirable in order to optimize oscillator signals for accurate timing and for other measuring purposes. This paper introduces a Galerkin-method for prediction. It may deliv
Conformal Log.-Periodic Antenna with Integrated Feeding Network for UWB-MIMO Applications
C. Orlob, Q. H. Dao, B. Geck
Conformal Log.-Periodic Antenna with Integrated Feeding Network for UWB-MIMO Applications C. Orlob, Q. H. Dao, B. Geck Institut f¨ r Hochfrequenztechnik und Funksysteme, Leibniz Universit¨ t Hannover u a Appelstr. 9A, 30167 Hannover, Germany orlob-hft.uni-hannover.de Abstract--This paper presents a compact design of a conformal log.-periodic four arm antenna with feeding network integrated on a s
Tunable Split Ring Resonators ( SRR ) Filter based on Barium-Strontium-Titanate Thick Film
Mohammad Nikfalazar, Mohsen Sazegar, Yuliang Zheng, Holger Maune, Arshad Mehmood, and Rolf Jakoby
Tunable Split Ring Resonators ( SRR ) Filter based on Barium-Strontium-Titanate Thick Film Mohammad Nikfalazar, Mohsen Sazegar, Yuliang Zheng, Holger Maune, Arshad Mehmood, and Rolf Jakoby Institute of Microwave Engineering and Photonics, Technische Universität Darmstadt, Merckstrasse 25, 64283 Darmstadt, Germany Email: nikfalazar-imp.tu-darmstadt.de Abstract--This paper presents a bandpass filter
An Integrated Four-Antenna 802.11a Receiver in 0.25 m SiGe BiCMOS with Spatial Weighting
Michael Wickert, Uwe Mayer, Ralf Eickhoff, and Frank Ellinger
An Integrated Four-Antenna 802.11a Receiver in 0.25 µm SiGe BiCMOS with Spatial Weighting Michael Wickert, Uwe Mayer, Ralf Eickhoff, and Frank Ellinger, Chair for Circuit Design and Network Theory, Technische Universit¨ t Dresden, 01062 Dresden, Germany, a e-mail: michael.wickert-tu-dresden.de Abstract--This article presents an integrated receiver (RX) for antenna combining in the radio-frequency
A Novel Criterion for Safe Start-up of Oscillation and Avoidance of Latch-up in Oscillator Circuits
Michael H.W. Hoffmann
A Novel Criterion for Safe Start-up of Oscillation and Avoidance of Latch-up in Oscillator Circuits Michael H.W. Hoffmann Institute of Microwave Techniques, University of Ulm, D-89069 Ulm, Germany Abstract--A criterion is given for oscillator circuits to guarantee safe start-up of oscillation under all start-up conditions, provided the oscillator is not chaotic, and to guarantee avoiding latching
Determining transmission zeros of general Chebsyshev filters using genetic algorithm
Rui Wang, and Jun Xu
Determining transmission zeros of general Chebsyshev filters using genetic algorithm Rui Wang, and Jun Xu School of Physical Electronics, University of Electronic Science and Technology of China. Chengdu, 610054, China E-mail : rfywr-yahoo.com.cn Abstract--A method to determine the least filter order and the optimum locations of transmission zeros (TZs) of general Chebsyshev filters is presented u
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