MUL 1IPLE COUPLED ASYMMETRICAL COPLANAR WAVEGUIDES AND 1HEIR. APPLICATION IN INlERDIGITAlED FILlERS Mohsen Naghed and Ingo Wolff . ABS1RACT The quasistatic characteristics of multiconductor coplanar waveguides are calculated using a simple and accurate finite difference method by taking the losses and metallization thickness of conductors into consideration. Its application in coplanar interdi

A synthesis procedure for allpass-networks aT-configuration with an odd excitation by E.Menzel, B.Schiek in * Abstract A new synthesis procedure for RC-allpass-circuits in a planar realizable T-configuration driven by two antiphase sources is presented. This circuit shows some excellent advantages in comparison to well known bridge-allpass-circuits. Furthermore a synthesis procedure for RC allp

EXPERIMENTAL INVESTIGATION OF DUAL-MODE MICROSTRIP RING RESONATORS M. Guglielmi and G. Gatti European Space Research and Technology Centre Po Box 299, 2200AG, Noordwijk, The Netherlands ABSTRACT The general behavior of microstrip ring resonators has been known for some time. In particular, the possibility of exciting two degenerate resonances on a single ring has already been established. In the

INTEGRATED MICROWAVE DOPPLER CINEMOMETER J. VINDEVOGHEL, ABSTRACT M. EL BEKKALI, P. DESCAMPS, E. CONSTANT * The whole automation of the driving of terrestrial vehicles requires to know at any time with the highest accuracy the values of the instantaneous speed and the distance covered by the vehicle; moreover, it is also necessary to know the sign of the speed-vector. Each of these parameters

A THREE DIMENSIONAL SAR SIMULATOR Giorgio Franceschetti ., Maurizio Migliaccio **, Daniele Riccio., Gilda Schirinzi* Abstract We outline the general structure of IAGO, the Synthetic Aperture Radar (SAR) Simulator developed at IRECE-CNR. IAGO is a SAR Simulator of extended three dimensional terrain scene. Input to the simulator are terrain geometrical and physical parameters, as well a

A HIGH RESOLUTION SCATfEROMETER MEASUREMENTS OF WIND GENERATED P. Snoeil, FOR RADAR BACKSCATTER WAVES IN WIND/W AVE TANKS J. Vogelzang2, Ch. CaIkoen3, W.A. Oost4, D. van Halsemas and B. Jaehne6 ABSTRACf In February 1988, combined measurements of microwave backscatter, wind, waves and gas exchange have been carried out in the large Delft Hydraulics wind/wave tank, with wind generated waves. In M

NJ. Easton* 1. ABSTRACT A radar has been built to demonstrate Focal Plane Array Technology usin~ a novel I.F. monopulse processor which is particularly appropriate to multibeam stanng antennas. The front end of the radar consists of an array of thin film combined dipoles and receivers mounted on a lens such that each receiver produces a beam in the far field of the lens. Sixteen receivers are use

AN X-BAND TACflCAL BISTATIC RADAR SYSTEM. A M Betts- 1. ABSTRACT. Long-baseline bistatic radar systems have been investigated and built in the past, but shortrange tactical applications of bistatic radar have not been explored in such detail. This paper briefly introduces the concept of bistatic and multistatic radar, compares the features of longbaseline and short-baseline systems, and de

PHARS: A C-BAND AIRBORNE SAR P .Snoeif, P. Hoogeboom2, P. Koomen2 and H. Pouwels3 ABSTRACf For the study of microwave scattering of vegetation, forests, sea and other targets groundbased and airborne scatterometers and a digital SLAR system (X-band) are used since many years in The Netherlands. All these systems are absolutely calibrated. The experience gained with building radar remote sensin

GENERAL ENTIRE-DOMAIN GALERKIN METHOD COMPOSITE VIRE AND PLATE STRUCTURES . B M Kolundzija FOR ELECTROMAGNETIC MODELING OF ABSTRACT Geometry modeling of wires and plates is performed by using curvilinear cylinders of variable radii and curved curvilinear rectangles and triangles. Current modeling is performed by using entire-domain approximations, which satisfy continuity equation at wire and