Telefonaktiebolaget Lm Ericsson (publ)

Lars A Jonsson

Stefan Engström

Christos Kolitsidas

Bjorn O Ekelund

Georgios A Kyriacou

G&ouml;ran Pettersson

Petros Bantavis

A single polarized radiator comprising a plurality of planar notch radiating elements arranged on a dielectric substrate. Each notch radiating element comprises: a metallized region on a first side of the dielectric substrate extending across the width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element, a tuning element in the metallized region adjacent to a feeding point of the notch radiating element, a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile, and a plurality of indentations in the metallized region along each side of the notch to extend the length of the notch profile.

Broadband antenna

A single polarized radiator operating within a frequency range, the radiator comprising multiple active dipoles configured to be arranged a predetermined distance from a ground plane. Each active dipole comprising a first active element having first electrical characteristics and a second active element having second electrical characteristics, which first and second active elements are equal in length and provided with a respective feeding point. In each active dipole, first electrical characteristics differs from second electrical characteristics, the length of each active element is selected based on an upper frequency of the frequency range, and the first active element and/or the second active element of each active dipole is/are configured to be capacitively coupled to an active element of an adjacent active dipole.

The present invention relates to an arrangement, a network and methods for identifying the relevant SDP for a question from an SCP in a telecommunication network with a large amount of subscribers and handling and administration of a large amount of subscribers by introducing a function for intelligent routing. The intelligent routing between SCP and SDP can be handled by a node standing by itself in the network or as a part-function in an already existing node, for example an SCP. When a new subscriber shall be stored in an SDP subscriber data is transferred from the service administration to a master IRF (Intelligent Routing Function). The IRF comprises a function for determining which SDP that shall store the subscriber data and the IRF thereafter transfer the subscriber data to the SDP. The IRF also stores this information. The information is also transferred to the other IRFs. When an SCP gets a call from an SSP, the SCP contacts an IRF which contacts an SDP.

Intelligent routing

A method for compensating for non-linearities in an end amplifier (F) having a given transfer function H.sub.R, H.sub..phi. for amplitude and phase respectively and included in a radio transmitter of quadrature type for linear, digital modulation, and in which table look-up units (ST, CT) store the digital sine and cosine values (I(t,.alpha.), Q(t,.alpha.)) of the quadrature components determined by a given signal vector .alpha.. According to the method of values of the transfer functions H.sub.R, H.sub..phi. for the quadrature modulated radio signals r(t,.alpha.) are calculated by addressing memory units (MH1, MH2) which store a number of values of H.sub.R and H.sub..phi.. The sine and cosine values of the addressed values of H.sub.R and H.sub..phi. are also formed. The thus calculated values are multiplied by the stored digital values in the table look-up units (ST, CT) and by the inverted value of H.sub.R. As a result, new modified values i(t,.alpha.), q(t,.alpha.) are obtained for the quadrature components, which compensates for the non-linearities in the final amplifier.

Growing community of inventors

Lund, Sweden

Lars A Jonsson