公开(公告)号：US20240272261A1

公开(公告)日：2024-08-15

申请号：US18686754

申请日：2022-08-18

Applicant: SAAB AB

Inventor： Anders HÖÖK

IPC: G01S3/14 ,  G01S3/06 ,  G01S13/04

CPC classification number: G01S3/14 ,  G01S3/06 ,  G01S13/04

Abstract: An antenna arrangement (1) comprising an antenna array is disclosed. The antenna array comprises N antenna elements (2) (N being an integer ≥3). Moreover, each antenna element is connected to an electronics module (3) out of P electronics modules, P being an integer such that 3≤P≤N, where each electronics module is configured to generate an output signal indicative of a signal received by a corresponding one or more antenna elements. The antenna arrangement further comprises control circuitry (10) connected to the antenna array. The control circuitry is configured to receive each output signal, compute a sum of cross-correlations between each output signal and a set of other output signals originating from other corresponding antenna elements, and determine at least one angle of a direction of arrival of the electromagnetic waves relative to the antenna array based on the computed sum.

公开(公告)号：US20210247487A1

公开(公告)日：2021-08-12

申请号：US17276612

申请日：2018-09-26

Applicant: SAAB AB

Inventor： Anders HÖÖK ,  Max WALLÉN ,  Bruno LUMETZBERGER ,  Valter NILSSON

IPC: G01S7/03 ,  H01Q3/26 ,  G01S13/931 ,  H03F3/24 ,  H03G3/30

Abstract: The present invention relates to a radar system for a vehicle, a method for controlling a radar system, a computer program product, and a vehicle comprising such a radar system. The radar system comprises an antenna arrangement for transmitting and/or receiving electromagnetic waves, a power supply connected to the antenna arrangement, the power supply being arranged to supply the antenna arrangement with operating power. The radar system further comprises an antenna controller connected to the antenna arrangement, the antenna controller being configured to control an operation of the antenna arrangement. The radar system also comprises an auxiliary power source connectable to the antenna arrangement for supplying the antenna arrangement with supplementary operating power so to increase an output power of the antenna arrangement, and a boost controller connected to the auxiliary power source and to the antenna controller, the boost controller being configured to connect and disconnect the auxiliary power source to/from the antenna arrangement. Hereby presenting a radar system capable of increasing the maximum range of the antenna arrangement during an arbitrary period of time without suffering from too heavy penalties in terms of increased weight or cost.

公开(公告)号：US20240047871A1

公开(公告)日：2024-02-08

申请号：US18263954

申请日：2022-02-11

Applicant: SAAB AB

Inventor： Mattias THORSELL ,  Anders HÖÖK

IPC: H01Q3/26 ,  H03F1/02

CPC classification number: H01Q3/267 ,  H03F1/0272

Abstract: The present invention relates to a method (300) for compensating output efficiency of a plurality of amplifiers arranged to operate with an antenna array, where the antennas in the antenna array are electromagnetically coupled to each other, for providing a desired functionality of the antenna array, the method (300) comprising the steps of obtaining (301) input signal characteristics for each amplifier; determining (302) suitable compensating control parameters for each amplifier based on at least one of the input signal characteristics of each antenna and pre-determined coupling factors between antennas; outputting (303) efficiency control signals for adjusting at least one amplifier control parameter relating to output efficiency of each antenna.

公开(公告)号：US20240006772A1

公开(公告)日：2024-01-04

申请号：US18253807

申请日：2021-11-23

Applicant: SAAB AB

Inventor： Bengt SVENSSON ,  Anders HÖÖK ,  Ville VIIKARI ,  Juha ALA-LAURINAHO ,  Mikko LEINO

IPC: H01Q9/16 ,  H01Q5/15 ,  H01Q21/28 ,  H01Q5/30

CPC classification number: H01Q9/16 ,  H01Q5/30 ,  H01Q21/28 ,  H01Q5/15

Abstract: The present disclosure relates to an antenna arrangement including a first antenna configured to operate within a first frequency band and a second antenna configured to operate within a second frequency band. The first frequency band is higher than the second frequency band. Further, the second antenna is at least partly arranged within an illumination-field of the first antenna. Furthermore, the second antenna includes a dipole structure segmented into a plurality of electrically conductive sections, wherein each electrically conductive section is coupled to an adjacent electrically conductive section by a reactive load section.