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Asymmetric Doherty Power Amplifier at 2.2 GHz with 8.2 dB Output Power Back-Off
Asymmetric Doherty Power Amplifier at 2.2 GHz with 8.2 dB Output Power Back-Off Mohsin Mumtaz Tarar, Danish Kalim and Renato Negra Mixed-Signal CMOS Circuits, UMIC Research Centre RWTH Aachen University, 52056 Aachen, Germany Ph: +49-241-8027763, Fax: +49-241-8022199 kalim@umic.rwth-aachen.de Abstract--This work presents the design and implementation of a 10 W asymmetric Doherty power amplifier (
Broadband, Nonuniform Stripline Directional Couplers for use in VNA Testsets
Broadband, Nonuniform Stripline Directional Couplers for use in VNA Testsets Michael Hrobak 1 , Michael Sterns 2 , Ernst Seler, Thomas Schrauder, Marcus Schramm and Lorenz-Peter Schmidt 1 Chair for High Frequency Technology (LHFT), Friedrich-Alexander-University (FAU) of Erlangen-Nuremberg, Cauerstr. 9, D-91058 Erlangen, Germany mhrobak@ieee.org 2 Rohde & Schwarz GmbH & Co. KG, Muehldorfstr. 15, D
Characterization of Dielectric Materials Using Partially Loaded Waveguide Measurements
Characterization of Dielectric Materials Using Partially Loaded Waveguide Measurements Emre Kilic, Uwe Siart, Carsten H. Schmidt, and Thomas F. Eibert ¸ Lehrstuhl f¨ r Hochfrequenztechnik, Technische Universit¨ t M¨ nchen u a u Arcisstraße 21, 80333 Munich, Germany Abstract--In this study, an iterative inversion algorithm for the determination of complex dielectric permittivity of non-magnetic, is
System Concept of a Compact Multi-Antenna GNSS Receiver
System Concept of a Compact Multi-Antenna GNSS Receiver Nikola Basta1, Achim Dreher1, Stefano Caizzone1, Matteo Sgammini1, Felix Antreich1, Götz Kappen1, Safwat Irteza2, Ralf Stephan2, Matthias A. Hein2, Eric Schäfer3, André Richter3, Muhammad Abdullah Khan3, Lothar Kurz4, Tobias G. Noll4 1 2 German Aerospace Center (DLR), Oberpfaffenhofen, Wessling, 82234, Germany Institute for Information Tech
Dynamic X-parameters*: Behavioral Modeling in the Presence of Long Term Memory Effects
Dynamic X-parameters*: Behavioral Modeling in the Presence of Long Term Memory Effects Jan Verspecht, David Root and Troels Nielsen Agilent Technologies, Inc., Santa Clara, CA 95051, USA resulting model remains valid for a wide range of modulation bandwidths and for any possible probability density function of the modulation, making it insensitive to signal power and modulation format. This is typ
Characteristics of a 60 GHz Direct Conversion Quadrature Modulator/Demodulator
Characteristics of a 60 GHz Direct Conversion Quadrature Modulator/Demodulator Jun Kobayashi1, Fumio Ozawa1, Yasuhiro Toriyama1, Toshifumi Shirosaki1, Toru Taniguchi1, and Akira Matsuzawa2 2 1 Japan Radio Co.,Ltd., Tokyo, Japan Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo, Japan with high phase accuracy [2] [3]. A 60 GHz transceiver was proposed which
Broad-Band Modeling of Bond Wire Antenna Structures
Broad-Band Modeling of Bond Wire Antenna Structures Johannes A. Russer # , Farooq Mukhtar # , Sidina Wane , Damienne Bajon , Peter Russer # NXP-Semiconductors, for Nanoelectronics, Technische Universit¨ t M¨ nchen, Germany a u Esplanade Anton Philips 14906, Colombelles Caen, France ISAE-Universit´ de Toulouse, 10 Avenue Edouard Belin, Toulouse, France e sensing for the cognitive radio concept
Surface Wave Excitation and Coupling Mechanisms in PCBs and Microstrip Circuits
Surface Wave Excitation and Coupling Mechanisms in PCBs and Microstrip Circuits Andreas R. Diewald IEE S.A., 11, rue Edmond Reuter, 5326 Contern, Luxembourg, e-mail: Andreas.Diewald@rwth-aachen.de Rolf H. Jansen Chair of Electromagnetic Theory, RWTH Aachen, Kackertstraße 15-17, 52072 Aachen Submitted for publication at GeMiC 2012, Ilmenau Abstract--Surface waves, especially the fundamental subst
One-stage Selective Interference Cancellation for the OFDM Joint Radar-Communication System
One-stage Selective Interference Cancellation for the OFDM Joint Radar-Communication System Yoke Leen Sit, Christian Sturm, Thomas Zwick Institut f¨ r Hochfrequenztechnik und Elektronik u Karlsruhe Institute of Technology Karlsruhe, Germany {leen.sit|christian.sturm|thomas.zwick}@kit.edu Abstract--This paper presents a one-stage selective interference cancellation algorithm to demonstrate the con
Effects of cell structure of Gram-positive and Gramnegative bacteria based on their dielectric properties
Effects of cell structure of Gram-positive and Gramnegative bacteria based on their dielectric properties Katja Dahlke, Christiane Geyer, Stephan Dees, Marko Helbig, Jürgen Sachs, Francesco Scotto di Clemente, Matthias Hein, Werner Alois Kaiser, Ingrid Hilger K. Dahlke, C. Geyer, S. Dees, W. A. Kaiser, and I. Hilger Institute for Diagnostic und Interventional Radiology, Jena University Hospital, 0