DIELECTRIC LOADED MICROWAVE LENS APPLICATOR FOR EFFECTIVE HYPERTHERMIA TREATMENT Yoshio Nikawa;'r and Fumiaki Okada;'r ABSTRACT A direct-contact high efficient lens applicator for local microwave hyperthermia treatment of cancer is proposed and developed. The applicator can heat deep and local portion in the dissipative medium such as human body. The dielectric loaded applicators oper

SENSOR FOR MEASURING THE MOISTURE CONTENT AND THE MASS PER UNIT AREA OF VENEER Pertti Vainikainen, Ebbe Nyfors and Matti Fischer ABSTRACT A sensor for measuring the moisture content and mass per unit area of some sheetlike material has been constructed. It is a stripline resonator with two center conductors. The sensor is designed for non-contact measurements and it tolerates moderate movements o

CONTACTLESS THERMOMETRY OF A TEXTILE WEB BY MICROWAVE RADIOMETRY Y. Leroy*, ABSTRACT J.C. Van de Velde*, A. Mamouni*, B. Meyer**, J.F. Rochas** We present a new application of microwave radiometry devoted to the contactless thermometry of a textile web. An interpretation of the radiometric data is proposed. It is also shown in which way this process can be used to determine a thermal p

HIGH PERFORMANCE BEAM FORMING NETWORK FOR MULTI CONTOURED BEAM ANTENNAS F. Rispoli, P. Vita, G. Doro, F. De Gennaro* G. A. E. Crone** ABSTRACT A compact Beam Forming Network (BFN) for contoured beam antennas has been developed and tested in the 10.9 to 12.8 GHz band (16%). The BFN components are designed with efficient electromagnetic tools to reduce the insertion loss and the amplitude and phase

A DUAL REFLECTOR HIGH GAIN MICROWAVE OMNIDIRECTIONAL ANTENNA M R Staker* ABSTRACT The design of a reflector system consisting of conic section reflectors rotated about an axis and fed using a biconical horn is outlined. Shaping of the main reflector to meet a required elevation radiation pattern is then described and some theoretical predictions of performance presented. 

NUMERICAL ANALYSIS OF BACKED CAVITY ARCHIMEDEAN SPIRAL ANTENNA C. BROCHARD, J. P. ML\RTINAUD, J. TOURNEUR* ABSTRACT: A method of calculating the radiation and directivity pattern Archimedean printed spiral antenna backed with an arbitrarily tor is described. of planar shaped reflec- Application of the equivalence principle and the reaction concept of Rumsey leads to the variational formulati

A NOVEL PHASED ARRAY ANTENNA CONCEPT USING A LOW-FREQUENCYMODULATION TECHNIQUE ROGER FRESE AND BURKHARD SCHIEK ABSTRACT A novel phased array concept using a low frequency modulation technique is presented. Any desired shape and any direction of the radiated beam can be generated by controlling the modulation phase of each radiating element which contains a PIN-diode mounted at the feeding point.



SOME ISSUES ON RADAR IMAGING 0 0 00 , 0 , 0 G.Corsini , E.Dalle Mese F.Prodi R.Reggiannini and A.Vaccarelli ABSTRACT This above paper is concerned coherent inversion, with the problem of obtaining After an image by means of the and be of a spatially technique, of 2D-Fourier In addition, considered. radar signal processing. a brief (target review the problems of motion of extend

EXPERIMENTS WITH A NEAR-CLUTTER-SUPPRESSING W.Knapp and B.Wigger FMCW-RADAR ABSTRACT A severe problem for target detection and distance measurements with CW-Radar-Systems are unwanted nearby reflectors. They decrease the signal-to-noise-ratio of the system. Therefore long-range applications in general are performed by pulsed radars. With the development of new solid state RF sources and broadban