EXPERIMENTAL CIRCUITS WITH AND THEORETICAL INVESTIGATIONS DEVICES z OF RADIAL MICROWAVE INTEGRATED MULTI-SEMICONDUCTOR , :t A.C. DERYCKE z. , M. DEJAEGER , G. SALMER , A. DE BOUARD ZZ ABSTRACT A theoretical and experimental dules is presented. The model makes dance by considering the particular study of eccentered radial pretuned moit possible to calculate the load impemode spectrum

CASCADABLE CIES MONOLITHIC BALANCED AMPLIFIERS AT MICROWAVEFREQUEN E.M. Bastida, G.P. Donzelli, N. Fanelli ABSTRACT A cascadable monolithic amplifie~ where input-outputdecoup! ing is obtained through new broad-band, low-loss coplanar direc tional couplers, is reported. Design data and experimental re-suIts are given for the new couplers which are suitable for both hybrid and monolithic

MICROWAVE BRIGHTNESS TEMPERATURE PATTERN OVER THE INDIAN SUBCONTINENT AND THE SURROUNDING OCEANS AS OBSERVED BY THE SATELLITE MICROWAVE RADIOMETER (SAMIR) ONBOARD BHASKARA. OPN Calla*, G Raju*, SS Rana* and S Balasubramanian* ABSTRACT Salient features of the Satellite Microwave Radiometer (SAMIR) onboard 'Bhaskara', the first Indian satellite for earth observations are described. SAMIR is a three

MEASUREMENT OF ICE AND FROST lliICKNESS WIlli AN fM-CW RADAR Pekka Jakkula, Pekka Ylinen and Martti Tiuri ABSTRACT A mobile instnunent for the measurement of ice and frost thickness on lakes and bogs has been developed. It is an FM-CWradar with separate transmi tting and receiving antennas operating in the frequency range 1...1.8 ClIz. The display of the radar consists of an audio spectru

PASSIVE MICROWAVE THE AVALANCHE by M. BOUTHINON, TRANSPOSER, FREQUENCY J. GAVAN, F. ZADWORNY DOUBLER FOR DETECTING VICTIMS Laboratoire d'Electromagnetisme (Circuits Micro-Ondes) Ecole Nationale Superieure d'Electronique et de Radioelectrici te de Grenoble 23 rue des Martyrs - 38031 GRENOBLE Cedex (FRANCE). ABSTRACT Electronic detecting methods for victims buried under the snow often show inco

MICROWAVE RADIATION FROM A NA1URAL SNOW FIELD Martti Tiuri and Henrik Schultz ABSTRACT The brightness temperature of a natural snow field in Finland has been studied theoretically and experimentally at 5, 12 and 37 GHz for satellite remote sensing applications. A snow model consisting of ice spheres covered by a water shell has been used in theoretical calculations taking into account scat

VARIABLE SIDE LOOK CONCEPT FOR RADAR MAPPING OF PLANETARY SURFACES Frank Vandenberg~ Douglas B. Cross ABSTRACT Planetary mapping by side looking synthetic aperture radar overcomes the problems of imaging through cloud covers. Circular orbits simplify the radar operation and are, by far, the outstanding choice where possible. In cases where the velocity requirements at the planet are large

CALCULATIONS OF COMPLEX DIELECTRIC PERMITTIVITY OF TWO-PHASE COMPOSITE MEDIUM B. Korybut-Daszkiewicz, J. Zagrodzinski Abstract A new method is developed to treat rigorously the propagation of electromagnetic waves in composite media. An effective, complex wave vector k ascribed to the composite is found and used to det~~ine an effective dielectricconstant E ( k). This "dynamic"method (unl

OPERATION OF THE GALVANOGIROMAGNETIC MICROWAVE POWER FLOW DETECTORS IN A FREQUENCYRANGE V.B. Vuntesmery A b s t r act The theoretical and experimental investigations of the galvanogyromagnetic microwave power flow detectors based on ferromagnetic films which are placed in unmatched waveguide has been made in this paper. It is shown, that there are two opposite sign maximum in the output signal of

COMPUTER-AIDED METHOD FOR OBJECTIVE FUNCTION DETERMINATION COI'fOUB. LINlm x Z'bi. Szozypka Ab8traot - The algor1thm for objeotive funot10n oontour 11nes 1n oase of three-dimens1onal prob1e. i8 propos- determ1nation ed'. Prooedures are based on NeWton 1terative method and pr1n01ple of l1near1zation of the ,oontours in narrow intervals'. Praot1oal example 1s presented for use the a1gor1thm