MICRCWAVEeN-LINE MATERIALS IDISTURE (X)N!'ENT IDNITORING IN L<:M-HYDRATEDORGANIC Stanislaw Kulmski, Kajetan Zielkowski, Jerzy Madziar, Andrzej Kraszewski Abstract. for oontinuous Application on-line of microwave nonitoring attenuation meter content operating in at 9.4 GHz of noisture low-hydrated ( 6 up to 14 %) organic materials (pJtato chips, chioory slides, sugar beet pulp

DENSITY INDEPENDENT MOISTURE METER AT X-BAND R. Jacobsen, W. Meyer, B. Schrage ABSTRACT A new method of density independent moisture determination at one single frequency is developed. It is based on the two-parameter-measurement of the complex dielectric constant being composed to a density independent calibration curve A(W) which is a function of the moisture content is demonstrated b

ANEW APPROACH FOR A QUANTITATIVE MICROWAVE MOISTURE-MEASUREMENT . O.Ostwald, B.Schiek, H.Chaloupka ABSTRACT The quantitative relationship between a randomly shaped and orientated water distribution in a wet material and its dielectric constant is described by a superposition of differently shaped ellipsoids. The comprehension of this relationship allows to choose a combination of measurem

APPLICATIONS SATELLITE Jeannine OF SURFACE-ACOUSTIC-WAVE SYSTEMS DEVICES IN COMMUNICATION HENAFF ABSTRACT: Typical performances of surface-acoustic-~ave (SAW) devices offer several advantages in the construction of digital communication networks. This paper describes the subunits of terrestrial equipments involved in a satellite communication link ~here some SAW devices improve significantly

A 5400 VOICE-CHANNELS SINGLE SIDE BAND AMPLITUDE MODULATED RADIO RELAY SYSTEM OPERATING IN THE 4 GHZ BAND P. RAMAT, D. THEBAT.~T, C. VEYRES * ABSTRACT: The present study intends to show the feasibility of a SSB-AM link. A laboratory model of a transmitter-receiver working in - microwave the 3,8 4,2 GHz band was constructed and allows 5400 voice-channels to be transmitted for a 29 MHz-bandwid

8 GDz DMmL RADIo-REUY SYST1!JI~R 1EDIUB: CAPAOITYLINICS O. Briganti, M. Giunti, L. Ricco * AESTBAO! '!'his paper presents the maindesign criteria and characteristics of a new digital radio-relaY' equipment, operating at 8 GDz with 34 xtfs rate, topther with the results of the performance tests. In partiOl1lar the problems posed bY' the use of an analogue frequency band have been carefullY'

A 58 GHZ COMMUNICATION LINK FOR RAILWAY APPLICATIONS H. Meinel, A. Plattner, H. Pehnack and O. Schickl Abstract: Modern railbound traffic has the need for a communication system between traffic control center and trains within the network. This can be accomplished using 35 GHz line-of-sight transmission as shown before. Such an approach incorporates high data rate transmission and high sel

SHORT-TEP-M MUNICATION STATISTICAL SYSTEMS. VARIATIONS OF RAIN DEPOLARIZATION IN MICROWAVE COM- J. D. Kanellopoulos* ABSTRACT Observed electromagnetic wave depolarization period tends in forward propagation due to distribute depolarization statistically model, we to precipitation about have a mean analyzed (XPD) in a short-term Using level. the a special Rayleigh statistical scatt

EUROPEAN SPACE MICROWAVE TECHNOLOGY G.J. Blondin * SUMMARY This paper covers the main items of the current European space technological research programme bearing on communications microwave systems and equipment. A general review is made of the present state-of-the-art, and trends in conjunction with future systems of telecommunications satellites are outlined. 

HOLOGRAPHIC METHOD OF NEAR-FIELD Vladimir Schejbal and Jan ANTENNA MEASUR~~ENTS Honig ABSTRACT The paper presents experimentalresults of measuring the microwave antenna parameters using the holographic near-field method to validate theory. The field was measured by two different probes. Comparison of calculated far-field patterns with measured ODes are presented. Experimental results and numeri