Patent application number | Description | Published |
20090184879 | Method and Device for Coupling Cancellation of Closely Spaced Antennas - An antenna system comprising at least two antenna radiating elements and respective reference ports the ports being defined by a symmetrical antenna scattering N×N matrix. The system further comprises a compensating network connected to the reference ports. The compensating network is arranged for counteracting coupling between the antenna radiating elements. The compensating network is defined by a symmetrical compensating scattering 2N×2N matrix comprising four N×N blocks, the two blocks on the main diagonal containing all zeros and the other two blocks of the other diagonal containing a unitary N×N matrix and its transpose. The product between the unitary matrix, the scattering N×N matrix and the transpose of the unitary matrix equals an N×N matrix which essentially is a diagonal matrix. The present invention also relates to a method for calculating a compensating scattering 2N×2N matrix for a compensating network for an antenna system. | 07-23-2009 |
20090289864 | Antenna Arrangement And A Method Relating Thereto - The present invention relates to an antenna arrangement ( | 11-26-2009 |
20100066634 | OPTIMIZED RADIATION PATTERNS - An antenna arrangement comprising at least two antenna arrays, each array comprising a plurality of radiating elements being arranged so as to have at least a plurality of corresponding radiating element positions, wherein for each radiating element there is associated an excitation means comprising a magnitude weight and a delay weight, wherein there is a first set of excitation means associated with a first array providing a first radiation pattern and a second set of excitation means associated with a second array providing a second radiation pattern. At least two respective excitation means associated with a corresponding radiating element position of at least two respective arrays have at least two different magnitude weights, and at least two respective excitation means associated with a corresponding radiating element position of at least two respective arrays have at least two different delay weights. | 03-18-2010 |
20120306711 | Antenna Arrangement - An antenna ( | 12-06-2012 |
20130040651 | COMMUNICATION SYSTEM NODE WITH IMPROVED INTERFERENCE SITUATION - A node in a wireless communication system comprising at least a first cell region and a second cell region, where cell borders delimit between different cell regions. The node comprises at least a first antenna function with a first antenna radiation lobe and a second antenna function with a second antenna radiation lobe, the radiation lobes being arranged to cover the first cell region at the same time. For each cell region, only one of the antenna radiation lobes is intended for communication at each cell border. Furthermore, the first antenna radiation lobe is arranged for signals at a first frequency band, and the second antenna radiation lobe is arranged for signals at least a second frequency band. | 02-14-2013 |
20130079047 | Node in a Communication System with Switchable Antenna Functions - The present invention relates to a node ( | 03-28-2013 |
20130257669 | ANTENNA ARRANGEMENT - An antenna arrangement comprising at least a first and a second elongated structure, e.g., a coaxial cable, for guiding an electromagnetic wave is provided. Each of said structures comprises a plurality of radiation elements. The structures are positioned alongside each other in their longitudinal direction of extension forming a bundle. The elongated structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension. | 10-03-2013 |
20140120923 | ARRAY ANTENNA ARRANGEMENT - A wireless communication system comprising at least one base station in a communication cell, wherein the base station is equipped with at least one array antenna comprising at least two antenna ports which are connected to respective at least two corresponding antenna elements, wherein at least two of the at least two antenna elements have essentially the same polarization. The array antenna is arranged for communication via at least two antenna radiation lobes, each antenna radiation lobe communicating an information stream to at least one user equipment (UE) in the cell, wherein each antenna radiation lobe is individually controllable both in azimuth and elevation, whereby the communication of the information streams is optimized. | 05-01-2014 |