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EMC-investigation of hand-held mobile telephones using a double-cone nearfield to farfield transformation
EMC-investigation of hand-held mobile telephones using a double-cone nearfield to farfield transformation H 0 Ruoss, J Christ and F M Landstorfer Institut fUr Hochfrequenztechnik, University of Stuttgart, Pfaffenwaldring 47, 70550 Stuttgart, Germany. Tel: (+49)(0)711/685-7418 Fax: (+49)(0)711/685-7412 E-mail: ruoss@ihf.uni-stuttgart.de WWW: http://www.ihf.uni-stuttgart.de Abstract An efficient nea
Performance of a novel dual-band horn antenna @ 20/30GHz
Performance of a novel dual-band horn antenna @ 20/30GHz D Geen*, D Smith** *Vertex Communications, Kilgore, TX 75663, USA Tel: +1 903 984 0555 **Department of Electrical Engineering, University of Northumbria, Newcastle NE1 8ST, UK Tel: +44 91 2273624 Abstract The design for a narrow angle feed horn radiating low levels of cross polarisation in two widely separated frequency bands is presented. T
Wideband flared IDG slot millimetre wave antenna
Wideband flared IDG slot millimetre wave antenna v Stoiljkovic, S R Pennock and P R Shepherd. School of Electronic and Electrical Engineering, University of Bath, Claverton Down, Bath, Avon, BA2 7AY, United Kingdom. Tel. (44-1225) 826072 Fax. (44-1225) 826305 E-mail: S.R.Pennock@bath.ac.uk Abstract Inset dielectric guide antennas are shown to have a considerable potential as broadband millimetre
A folded lens antenna with triple use of the lens
A folded lens antenna with triple use of the lens Wolfgang Menzel, Dietmar Pilz Microwave Techniques, University of UIm, D-89069 UIm, Germany. Abstract A novel type of folded lens antenna is presented in this contribution. In addition to known concepts of folding reflector or lens antennas, the lens of the antenna described here is used threefold, resulting in a further reduction of antenna depth.
Analysis of prime-focus reflector antennas by WIPL code
Analysis of prime-focus reflector antennas by WIPL code Branko M Kolundzija, Tapan K Sarkar* Dept of EE, University of Belgrade, Bulevar Revolucije 73, PO 816, 11001 Belgrade, Yugoslavia. *Dept of ECE, Syracuse University, 121 Link Hall, Syracuse, New York 13244-1240, USA. Abstract The paper presents a new method for the analysis of the reflector antennas together with their feeds and supporting s
Design procedure for a steerable gridded spot antenna with low side lobes
Design procedure for a steerable gridded spot antenna with low side lobes R Ravanelli, V Lubrano Alenia Spazio S.p.A., via Saccomuro,24 - Rome -Italy Abstract Satellite antenna require very tight performance in terms of edge of coverage (EOC) gain, crosspolarisation discrimination (XPD), absolute level of cross polarisation and side lobe mask over the global coverage. A dual "ridded reflector (DGR
Fingers slow-wave structures
Fingers slow-wave structures Yury N Pchel'nikov Abstract New way of calculation the fingers slow-wave structures of a two-wire type, based on the theory of multiconductors' lines and on the replacement of a real structure by an equivalent to it two-wire long line is offered. The offered method permits to calculate the dispersion characteristics not only one-row, but also of the two-row fingers st
Properties of coupled microstrip patches on uniaxial anisotropic layers
Properties of coupled microstrip patches on' uniaxial anisotropic layers Jose de Ribamar Silva Oliveira* Adaildo Gomes d' Assun~ao** *Federal Center of Technological Education of Maranhao, Sao Luis, MA, Brazil. **Federal University of Rio Grande do Norte, Natal, RN, Brazil. UFRN, Centro de Tecnologia, Departamento de Engenharia Eletrica, Caixa Postal 1655 - 59072, 970 Natal, RN, Brazil Fax: (084)
SAW fixed-code matched filters for wireless spread spectrum consumer communications
SAW fixed-code matched filters for wireless spread spectrum consumer communications R Weigel*, C Knorr*, F Kalabic**, F Seifert**, K Wagner***, L Reindl**** *Technische UniversWit Miinchen, Lehrstuhl fUr Hochfrequenztechnik, Arcisstr. 21, D-80290 Miinchen, Germany **Technische Universitat Wien, Institut fUr Allgemeine Elektrotechnik und Elektronik, Gusshausstr. 27-29, A-1040 Wien, Austria ***Sieme
A hybrid spatial domain analysis of the Wilkinson power divider
A hybrid spatial domain analysis of the Wilkinson power divider Dongsoo Koh, Ruey-Beei Wu*, and Tatsuo Itoh Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, CA90095, USA *Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan Abstract A hybrid spatial domain analysis has been proposed to analyze the Wilkinson power divider. By inco