EQUIVALENT INDUCTANCE AND CAPACITANCE OF A MICROSTRIP SLOT Juan R. MOSIG and Professor F.E. GARDIOL ABSTRACT: Slots cut in the upper conductor of a microstrip transmission line have been used to match microwave components such as couplers and filters. Their equivalent circuit, which must be known in order to design devices involving such discontinuities, is composed of a series inductance

COPLANAR LINES APPLICATION M. HaDARI' : TO LUMPED AND SEMI-LUMPED MICROWAVE INTEGRATED CIRCUITS * , C. AURY,A. JEAN-FREDERIC ABSTRACI' After having evinced the advantages which nay be derived from the use of lumped elements in a coplanar configuration, lumped or semi-lumped coplanar microwave filters with infinite attenuation peaks are described. For this purpose, the behaviour of lumped indu

SOME RECENT ADVANCEMENTS IN HYBRID MICs P.M. Brigginshaw, N.M. Lancaster, G.R. Swallow and T.R. Oxley ABSTRACT This paper describes some circuit design features of MIC sub-systems utilising hybrid-open microstrip techniques which give improved performance, particularly where military environments necessitate a wide operating temperature range and compactness is of prime importance. The

ANALYSIS WITH Arne MORE AND SYNTHESIS OF COUPLED STRIPS. MICROSTRIP CIRCUITS THAN TWO COUPLED B. Dalby ABSTRACT. It is shown that the y-parameters for the 2N-port network, N coupled strips form, may be found using almost arbitrary quasi-propagation modes if the relative bandwith of interest is small. Chosing a special set of propagation modes leads to simple expressions for the y-paramete

115 GHz LOW NOISE CRYOGENIC RECEIVER FOR RADIOASTRONOMY G. BEAUDIN - B. LAZAREFFx - J.R. MAHIEU+ ABSTRACT This paper describes a cryogenic front-end designed for radioastronomical observations around 115 GHz. The system includes an image-rejection filter, a single ended microstrip mixer, and a 5 GHz IF consisting of a paramp followed by a FET amplifier, all cooled at 200K and 77°K. The mix

80 GHZ RADIOMETER CALIBRATION SYSTEM Mikko Toriseva ABSTRACT A calibration system for an 80 GHz radiometer has been designed and constructed. During observations, calibration is obtained from a noise valve, the noise of which is fed to the radiometer via a beam switch. The calibration signal is controlled by a mechanical waveguide switch. It has been confirmed by experiment that, at millimetr

THE ONSALA 20 M MILLIMETER WAVE RADIO TELESCOPE O.E.H. Rydbeck, B.Ronnang, and Richard d~Amato~* B.Hansson, J.Ellder, A.Hjalmarson, E.Kollberg~ ---- Abstract A 20 m millimeter wave telescope, enclosed in a 30 m metal space frame radome, has recently been completed and put into operation by Research Laboratory of Electronics. A number of novel features are incorporated in this new, Cass

A MULTIFREQUENCY RADIOMETER SYSTEM Niels Skou * ABSTRACT A radiometer system having four channels: 5 GHz, l7 GHz, 34 GHz, vertical polarization, and a 34 GHz sky horn, will be described. all The system which is designed for collecting glaciological and oceanographic data is intended for airborne use and imaging is achieved by means of a multifrequency conically scanning antenna. Implementat

A MODULAR SIDE LOOKING AIRBORNE RADAR TO FULFILL A MULTITUDE OF SURVEILLANCE MISSIONS Mr. Russell Vollmers* Mr. Guy V. Morris** ABSTRACT A side looking airborne radar is being modularly configured so that each user can procure only what is needed for his missions. The baseline system employs a 200 kw magnetron transmitter and an 8-foot antenna to provide a real aperture mode for ship detection and

DETECTION OF BURIED OBJECTS BY MICROWAVE MEANS P.J.B. Clarricoats, R. Kularajah, R.R. Lentz and G.T. Poulton ABSTRACT A system is described for the microwave means. It utilises and incorporates a forward-looking improvement in signal/clutter Experimental results have been buried plastic boxes and plastic configuration is discussed. detection of non-metallic buried objects by an FMCW radar o