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：US20240204422A1

公开(公告)日：2024-06-20

申请号：US18555882

申请日：2022-04-04

Applicant: SAAB AB

Inventor： Nicklas BILLSTRÖM ,  Andreas WIKSTRÖM ,  Kenneth J-O SVENSSON ,  Max WALLÉN

IPC: H01Q21/24 ,  H01Q1/38 ,  H01Q9/42 ,  H01Q13/08

CPC classification number: H01Q21/24 ,  H01Q1/38 ,  H01Q9/42 ,  H01Q13/085

Abstract: Provided is an Active Electronically Scanned Array (AESA) including at least one planar Printed Circuit Board (PCB), a first set of first notch antenna elements arranged on the PCB, and a second set of second antenna elements; wherein the first and second antenna elements are interleaved, wherein each first antenna element is configured to transmit and/or receive, a signal having a first direction of polarization, and wherein each second antenna element is configured to transmit and/or receive, a signal having a second direction of polarization, which is different from the first direction of polarization, characterized in that each second antenna element is a notch antenna element which is included in a surface mounted element on the PCB, and wherein the first direction of polarization and the second direction of polarization is separated by at least 45°.