(5) where 0 is the incidence angle, and cp the polarisation angle. T, is the calculated transmission loss for an electric field parallel to the plane of incidence, and T, for an electric field normal to the plane of incidence. Expeuimental resur'ts:To validate the method, a 4.7 x 4.7mm metallic grid was tested. It allows transmission losses from 10 to 50dB, the functiori of the frequency. With the element mounted

The Extended Services Network (XSN), typically performance of a digital cordless telecommunication system local in extent and privately operated, offers conforming to the DECT standard has been developed. The telecommunication services which are rich in features and impact of base stations codiguration. input traffic patterns and performance; examples might be PABX and IEEE 802 handsets mobility on both the capacity and the underlying networks. network is investigated. For the last purpose, the traffic A DECT Fixed Network consists conceptually of three entities [ll:generated by base stations is modelled, outlining signalling traffic which is due mainly to handover procedures.The authors wish to acknowledge the funding of the work by ALCATEL SESA and also the one given by the CAYClT (TIC90-0718) and CIRIT organisations.

Figure 6 Reflection coefficient for different dielectric lengths. a Ž . d s 1.2 cm, b d s 0.8 cm Office of Naval Research under Grant Nos. N00014-95-1-0848 and N00014-95-1-0872. REFERENCES 1. J.-P. Berenger, ''A Perfectly Matched Layer for the Absorption of ABSTRACT: The integral equation MEI IE-MEI is a new, sparse matrix formulation of the boundary-element method, which is particularly well suited for large con¨ex scatterers. In this Letter we explain why the original implementation of IE-MEI fails for large conca¨e objects and propose a remedy. ABSTRACT: This article proposes a dielectric o¨erlay on the conductors of an edge-coupled suspended coplanar wa¨eguide in order to impro¨e the forward-coupling characteristic. The coupling characteristics ha¨e been studied with the use of a semianalytical technique: the method of lines. The theoretical results show that dielectric loading produces large bandwidth and flat coupling response, which is suitable for broadband applications. Also, the lengths of the lines are reduced because of increased coupling, leading to a more compact structure.

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