Patent application number | Description | Published |
20130016003 | BEAM FORMING DEVICE AND METHOD USING FREQUENCY-DEPENDENT CALIBRATIONAANM STIRLING-GALLACHER; RichardAACI DallasAAST TXAACO USAAGP STIRLING-GALLACHER; Richard Dallas TX USAANM TESTAR; MiquelAACI StuttgartAACO DEAAGP TESTAR; Miquel Stuttgart DEAANM DAYI; FurkanAACI StuttgartAACO DEAAGP DAYI; Furkan Stuttgart DEAANM BOEHNKE; RalfAACI EsslingenAACO DEAAGP BOEHNKE; Ralf Esslingen DEAANM BLECH; MarcelAACI HerrenbergAACO DEAAGP BLECH; Marcel Herrenberg DEAANM WANG; QiAACI StuttgartAACO DEAAGP WANG; Qi Stuttgart DE - A beam forming device that enables the use for wideband digital beam forming and provide a high accuracy a beam forming device comprises a transmitter arrangement and a receiver arrangement, wherein the total number of transmit antennas and receive antennas is at least three. A beam forming unit performs beam forming to obtain beam formed output signals from said receive signals by use of corrected beam forming weights. A correction unit corrects preliminary beam forming weights in amplitude and/or phase by use of frequency-dependent final calibration coefficients representing the different amplitude and/or phase responses of the different channels between said at least one transmit antenna and said at least one receive antenna at two or more separate frequencies covered by the radiation transmitted towards the scene. | 01-17-2013 |
20130162475 | ANTENNA ARRANGEMENT AND BEAM FORMING DEVICE - An antenna arrangement comprises a first antenna array comprising a systematic arrangement of first antennas, at least two second antenna arrays, arranged adjacent to said first antenna array and each comprising a systematic arrangement of second antennas, at least two third antenna arrays each comprising at least one third antenna, wherein a third antenna array is arranged at a border area of said first antenna array and a second antenna array and replaces a first antenna closest to the adjacent second antenna array and a second antenna closest to the adjacent first antenna array. Said first or second antennas are transmitting and the other of said first or second antennas are receiving radiation. The at least one third antenna is transmitting and/or receiving radiation. | 06-27-2013 |
20130162490 | DUAL-POLARIZED OPTICALLY CONTROLLED MICROWAVE ANTENNA - An optically controlled microwave antenna that reduces the optical power consumed by the antenna and to enable polarimetric detection an optically controlled microwave antenna comprises an antenna array and a feed for illuminating said antenna array with and/or receiving microwave radiation. The antenna array comprises a plurality of antenna elements each including a waveguide, two optically controllable semiconductor elements arranged within the waveguide in front of the light transmissive portion of the second end portion, a controllable light source arranged at or close to the light transmissive portion of the second end portion for projecting a controlled light beam onto said semiconductor element for controlling its material properties, and a septum arranged within the waveguide in front of the light transmissive portion of the second end portion and separating said waveguide into two waveguide portions. | 06-27-2013 |
20130234904 | MICROWAVE ANTENNA AND ANTENNA ELEMENT - A microwave antenna comprises an antenna array comprising a plurality of antenna elements. An antenna element comprises a cover, a hollow waveguide formed within the cover for guiding microwave radiation at an operating frequency between a first open end portion and a second end portion arranged opposite the first end portion, a septum arranged centrally and along the longitudinal direction within the waveguide and separating said waveguide into two waveguide portions, a substrate arrangement arranged at the second end portion within the cover, said substrate arrangement comprising a ground plane and line structures arranged on both sides of and at a distance from said ground plane and a substrate integrated waveguide, a waveguide transition arranged between said hollow waveguide and said substrate integrated waveguide, an integrated circuit arranged within said cover and electrically contacted to said ground plane and said line structures, and terminals electrically contacted to said integrated circuit. | 09-12-2013 |
20140168007 | METHOD FOR GENERATING AN IMAGE AND HANDHELD SCREENING DEVICE - A method for generating an image is provided including taking a first active radar image of an object from a first position with a handheld screening device; taking a second active radar image of the object from a second position with the handheld screening device; and generating a third image based on the first active radar image and the second active radar image. A corresponding handheld screening device is provided as well. | 06-19-2014 |
20140168008 | METHOD FOR DISPLAYING AN ACTIVE RADAR IMAGE AND HANDHELD SCREENING DEVICE - A method for displaying an active radar image of an object on a handheld screening device is provided comprising taking a sequence of active radar images of an object, the different active radar images of the sequence being representative for different distances of the object from the handheld screening device; selecting an image of the sequence of active radar images; and displaying the selected image on a display. A corresponding handheld screening device is provided as well. | 06-19-2014 |
20150268339 | METHOD FOR GENERATING AN IMAGE AND HANDHELD SCREENING DEVICE - A method and device for generating an image, the method including: generating an active radar image of an object; displaying the active radar image in a first representation on a display of a handheld screening device; detecting a movement of the handheld screening device; generating a second representation of the displayed radar image based on the detected movement. | 09-24-2015 |
20150285898 | METHOD FOR OPERATING A HANDHELD SCREENING DEVICE AND A HANDHELD SCREENING DEVICE - A handheld screening device including: an antenna array including a plurality of antennas; an input mechanism to select an operation mode; and a controller to determine a group of antennas of the plurality of antennas, wherein the number of antennas in the group is based on the selected operation mode, and to control the group of antennas to emit electromagnetic waves. A corresponding method operates the handheld screening device. | 10-08-2015 |