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Circularly Polarized Planar Printed Antenna with Conical Beam
Circularly Polarized Planar Printed Antenna with Conical Beam 1Aleksandar Nesic, 2Veselin Brankovic and IIvana Radnovic lInstitute of Microwave Techniques and Electronics, Bulevar M. Pupina 165 b, 11070 Belgrade, Yugoslavia, TEL:+381-11-311-1215, ACA@imtel.co.yu 2S0NY International (Europe) Telecommunication Research and Development Europe (TRDE), Fellbach, Germany ABSTRACT The new circularly po
Off-broadside antenna beam generation based on photoconductivity technology
Off-broadside antenna beam generation based on photoconductivity technology *M. Hajian, **F. Groen, *LP. Ligthart *IRCTR (Institute Research Centrefor Telecommunications-transmission TV Delft, Mekelweg 4, 2628 CD Delft, The Netherlands m.hajian@its.tudelft.nl and Radar), **TV Delft, Department of Physics, Lorentzweg 1, 2628 BW Delft, The Netherlands groen@optica.tn.tudelft.nl Abstracts-The non-me
Effects of multipath fading on the performance of the CMA adaptive antenna
Effects of multi path fading on the performance of the CMA adaptive antenna Masanori MORITA Kogakuin University Abstract and Isao OHTOMO 1-24-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo 163, Japan Adaptive antennas can suppress the interference signals under multipath fading environments. Among various algorithms of adaptive antennas, the CMA (Constant Modulus Algorithm) is one of the effective methods
Miniaturised MMIC H-Antenna For Microwave Frequencies
Miniaturised MMIC H-Antenna For Microwave Frequencies D. Singh, P. Gardner and P. S. Hall School of Electronics and Electrical Engineering, The University of Birmingham, Edgbaston, Binningham B15 2TT, UK D.Singh@bham.ac.uk Abstract The paper presents the first active MMIC microstrip antenna, to the authors knowledge, which has a resonant frequency as low as 5.8 GHz, with possible applications in t
RADIATION PATTERN AND APERTURE ADMITTANCE OF DIELECTRIC FILLED WAVEGUIDES WITH RECTANGULAR CROSS SECTION USING THE MODE MATCHING TECHNIQUE
RADIATION PATTERN AND APERTURE ADMITTANCE OF DIELECTRIC FILLED WAVEGUIDES WITH RECTANGULAR CROSS SECTION USING THE MODE MATCIDNG TECHNIQUE A. Mournen *, L.P. Ligthart ** TUDelft, Dept of Electrical Engineering-IRCTR, Mekelweg 4, P.O. Box 5031 2600 GA Delft, The Netherlands * A.Mournen @ITS.TUDelft.NL ** L.P.Ligthart@ITS.TUDelft.NL ABSTRACT A formulation for determining the aperture admittance and
ANALYSIS OF DUAL SLOT ANTENNAS FOR QUASI-OPTICAL APPLICATIONS USING LUMPED ELEMENT (LE)-FDTD METHOD
ANALYSIS OF DUAL SLOT ANTENNAS APPLICATIONS USING LUMPED FOR QUASI-OPTICAL (LE)-FDTD METHOD 1 ELEMENT M. Cryan, F. Alimenti, P. Mezzanotte, L. Roselli and R. Sorrentino Istituto di Elettronica, Universita di Perugia, Via G. Duranti, 93, 1-06131 Perugia, Italy. Tel. +39-75-5852672, Fax +39-75-5847149, e-mail: cryanGistel.ing.unipg.it ABSTRACT Analysis of dual slot antennas is becoming very impo
AN EFFICIENT FDTD ANALYSIS OF A WAVEGUIDE-TO-MICROSTRIP TRANSITION
AN EFFICIENT FDTD ANALYSIS OF A WAVEGUIDE-TO-MICROSTRIP TRANSITION Werner Thiel, Wolfgang Menzel University of VIm, Microwave Techniques Albert-Einstein-Allee 41, D-89069 Ulm thiel@mwt.e-technik. uni- ulm.de, menzel@mwt.e-technik. uni- ulm .de ABSTRACT In this paper, modifications in the basic FDTD for a fast analysis and optimization of a microstrip-to-waveguide transition are proposed and illus
A SIMPLIFIED METHOD FOR SIMULATING LONGITUDINALLY HOMOGENEOUS STRUCTURES USING THE TLM METHOD
A SIMPLIFIED METHOD FOR SIMULATING LONGITUDINALLY HOMOGENEOUS STRUCTURES USING THE TLM METHOD Oliver Pertz, Vlf Muller and Adalbert Beyer Gerhard-Mercator VniversWit Duisburg, Department of Electromagnetic Theory and Engineering, Bismarckstr. 81, D-47048 Duisburg, Germany Pertz@uni-duisburg.de ABSTRACT In this paper a new algorithm is proposed which reduces the amount of simulation time and memor
FAST EIGENMODES ANALYSIS FOR RIDGED RECTANGULAR/CIRCULAR WAVEGUIDES BY AN EFFICIENT PROCEDURE
FAST EIGENMODES ANALYSIS FOR RIDGED RECTANGULAR/CIRCULAR WAVEGUIDES BY AN EFFCIENT PROCEDURE *CEFET/MA- G. Fontgalland*, H. Baudrand**, M. Guglielmi*** Dept of Electronic, 4, GetUlio Vargas, 98100-000 - Sao Luiz MA, Brazil fontgall@len7.enseeiht.fr **ENSEEIHTILEN7-GRE - 2, rue Charles Camichel31071 - Toulouse, France baudranh@len7enseeiht.fr ***ESTECIESA - P.O. Box 299-2200 AG Noordwijk, The Net
SURFACE LEAKY WAVES AND THEIR MEASUREMENT
SURF ACE LEAKY WAVES AND THEIR MEASUREMENT 1811 Zehentner*, lan Machac*, lan Mrkvica*, Marcin K. Sarnowski *, lift Polivka# *Czech Technical University, Technicka 2, 16627 Prague 6, Czech Republic Tel +420224352273, Fax +420224355865, e-mail zeh@mbox.cesnet.cz #Spacek Labs inc., 212 East Gutierrez Street, Santa Barbara, California 93101, USA Tel + 1 805 5644404, Fax + I 805 9663249, e-mail spacek@