A low contact-resistance winged-bridge RF-MEMS series switch for wide-band applications Paola Farinelli', Benno Margesin2, Flavio Giacomozzi2 , Giovanni Mannocchi3, Simone Catoni4, Romolo Marcelli4, Paolo Mezzanotte, Larissa Vietzorreck5, Francesco Vitulli3 , Roberto Sorrentino and Francois Deborgies6 Abstract -- A MEMS ohmic series switch with a winged bridge has been designed, fabricated and tes

A 10 watts, X band GaN HEMT three-way Doherty amplifier based on a new symmetrical topology C. Lagarde', P. Bouysse1, J. M. Nebus', S. Forestier', J. F. Villemazet2 , J. L. Cazaux2 , A. Mallet' and R. Quéré' Abstract -- This paper presents a new Doherty amplifier topology which consists in a novel combination of one main class AB carrier amplifier and two auxiliary class B peaking amplifiers. The

Unwired SAW sensors systems Leonhard M. Reindl Abstract--Surface acoustic wave (SAW) devices can be used as identification and sensor elements (SAW transponders) for measuring physical, chemical and biological quantities such as temperature, pressure, torque, acceleration, humidity, etc. that do not need additional power supply for the sensor elements and may be accessed wirelessly. The complete w

Three-dimensional CRLH metamaterials for microwave applications Michael Zedler and Peter Russer Abstract -- Left-handed Metamaterials are artificial electromagnetic structures exhibiting special properties like negative permeability, negative permittivity and negative refractive index. The name left-handed (LH) metamaterials is due to the circumstance that the vectors of the electric field, the ma

The finite-volume time-domain method for 3-D solutions of Maxwell's equations in complex geometries: a review Fumeaux', Dirk Baumann', Krishnaswamy Sankaran', Klaus Krohne', Christophe Rudiger Vahldieck' and Erping Li' Abstract -- This paper reviews the recent advances of finitevolume techniques applied to the solutions of Maxwell's equations, placing emphasis on the microwave engineering perspect

Radar detection and track in presence of impulse interference by using the polar hough transform Ivan Garvanov' and Christo Kabakchiev2 Abstract --In this paper, the polar Hough transform (PHT) is considered as a track initiator in a track before detect (TBD) system. The study is performed in the presence of impulse interference. The algorithm under study includes a parametric CFAR detector, which

Liquid level gauging with maximum likelihood estimation Markus Pichler', Stefan Schuster', Stefan Scheiblhofer2, Andreas Stelzer', Martin Glänzer4 and Andreas Ziroff4 Abstract -- While there are many possible technical realizations for liquid level gauging systems based on mechanical apparatus or ultrasound sensors, the lack of mechanical parts and insensitivity to temperature and gaseous environm

Influence of linear and non-linear distortions in SAW/FBAR duplexers for 3rd generation mobile phone systems Jun Tsutsumi' , Shogo Inoue', Masanori Ueda' and Robert Weigel' Abstract -- This paper describes the influence of linear and nonlinear distortions in surface acoustic wave (SAW) and film bulk acoustic wave resonator (FBAR) duplexers on 3rd generation mobile phone systems, based on system si

Formation of wideband sector-shaped nulls in the array pattern with a phase-only method Alexander S. Kondratiev Abstract -- A fast iterative method is proposed for the phaseonly synthesis of the array pattern nulls in prescribed directions at a specified set of frequencies. The method lies in writing a positive semidefinite functional composed of the residuals of the original set of the problem eq

Advanced integrated piezoelectric LTCC tuned bandpass filters Russer2 Mahmoud Abstract Al-Ahmad', Richard Matz', and Peter -- Integrated tunable piezoelectric LTCC bandpass filters have been fabricated. The filters incorporate a novel parallelplate capacitor that can be tuned by a piezoelectrically movable electrode. Very broad tuning ranges of 135% in the first-order filter and of 46% in the s