ON-LINE COAL-DUST MOISTURE CONTENT MONITORING BY MEANS OF MICROWAVE METHOD AND INSTRUMENTATION J.Kalinski ABSTRACT Some aspects of the moisture content measurement of dielectric material-water mixture by means of microwave method and instrumentation are discussed. Two types of moisture contentmicrowave attenuation-voltage converters are presented. The results obtained by on-line moisture content m

MICROWAVE-INDUCED CONDucr ANCE INCREASES IN LIPID BILAYER MEMBRANES MODIFIED WITH GRAMICIDIN-A R. Antolini+o, P. Bemardi*, L. CescattiO, L. Cristoforettio,G. D'Inzeo*, G. Menestrina+, P. Minciacchi*, S. Pisa* and R. PontaltiO ABSTRACT The effects of microwave fields on the conductance of lipid bilayer membranes modified with a population of Gramicidin-A channels have been investigated. An S-band

A VISUAL ELECTROMAGNETICS EDUCATION USING TLM LABORATORY FOR MICROWAVE Wolfgang J.R. Hoefer* ABSTRACT In this paper, a new educational tool in the fonn of a two-dimensional electromagnetic wave simulator is described. It is based on the Transmission Line Matrix (TLM) method of numerical analysis (a method using Huygens's principle in discretized form), employs a sophisticated graphics user inte

A PLL SIMULATOR LABORATORY . FOR EDUCATION IN A RADIOCOMMUNICATION AND MICROVAVES . . Jorge Perez. Pablo Dorta. German Gonzalez ABSTRACT In this paper a new phase-locked loop simulator used to teach this topic in our laboratory will be described. It is a very good tool for real PLO and frequency synthesizers design. This simulator runs on XT and AT compatible PC's having a very hig

Ka BAND TRACKING FILTER FOR SATELLITE APPLICATIONS A. D'Ambrosio, INTRODUCTION G. Castelli, E. Mazzola (*) This paper describes a rather new approach aiming at the realization of a MM wave voltage tunable filter. The design is implemented in evanescent mode waveguide and utilizes varactor diodes as shunt tuning elements. The filter can be tuned in the Ka band: a digital circuit allows the

MICROWAVE TECHNOLOGY EDUCATION AT THE HELSINKI UNIVERSITY OF A Raisanen * ABSTRACT Sequence of courses providing specialization towards microwave engineering at the Electronics Department of the Helsinki University of Technology is described. It consists of courses with lectures, laboratory assignments on microwave circuit design and measurements, and of work within a research or developm

RECONFIGURATION SWITCH MATRIX FOR USE ON BOARD THE DATA RELAY SYSTEM SATELLITES A. M. Khilla, A. D. Hall, A. Born.* ABSTRACT The increasing Low Earth Orbit (LEO) Spacecraft traffic and mission data communication requirements necessitates an increase in the real-time ground segment communication capability per orbit. The European Space Agency (ESA) Data Relay Satellite System (DRSS), consisting o

CODE SYNCHRONIZATION SYSTEMS IN FREQUENCY. HOPPING BURST COMMUNICATION L. Pap . ABSTRACT New synchronization introduced communication acquisition algorithms and algorithims of long pseudorandom hopping codes analysed in partial band noisy environment in FH burst systems. The performance analysis of the average time of the initial synchronization and the resynchronization based are are

DEVELOPMENT OF AN ELECTRONIC BEAM SQUINT TRACKING CONTROLLER G.J.Hawkins(l), C.T. Railton(l) and M.T.Collins(2) ABSTRACT The emergence of the Electronic Beam Squint (EBS) satellite tracking technique offers the possibility of low-cost, high performance systems suitable for earth station, maritime and satellite terminals. In this paper, following an introduction to the EBS scheme, a PC-base

A Ka BAND SATELLITE BEACON TRANSMITrER P Bradley., J Ness. ABSTRACT The design and manufacture of a 30 GHz beacon transmitter to be flown on the next generation of AUSSAT satellites is described. The beacon has a transmitter power output of 21 dBm to provide an EIRP of 13.5 dBW minimum over the whole of Australia, with the beam switchable between vertical and horizontal polarisation at a 1