公开(公告)号：US20230291114A1

公开(公告)日：2023-09-14

申请号：US18245170

申请日：2021-09-09

Applicant: SAAB AB

Inventor： Henrik FRID ,  Göran TENGSTRAND

IPC: H01Q13/08 ,  H01Q21/22 ,  H01Q9/40 ,  H01Q1/34

CPC classification number: H01Q13/085 ,  H01Q21/22 ,  H01Q9/40 ,  H01Q1/34

Abstract: The disclosure relates to an antenna arrangement, including an antenna mounted inside a radome. The antenna arrangement further includes a mounting arrangement arranged to mount the antenna arrangement to an antenna platform. The antenna is a tapered slot antenna, the radome has an aerodynamic shape, and the mounting arrangement includes two antenna fastening means and an antenna radio frequency connector arranged to interact with corresponding antenna platform fastening means and an antenna platform radio frequency connector arranged on the antenna platform.

公开(公告)号：US20240266755A1

公开(公告)日：2024-08-08

申请号：US18691092

申请日：2021-09-29

Applicant: SAAB AB

Inventor： Henrik FRID

IPC: H01Q21/22 ,  H01Q1/28 ,  H01Q1/32 ,  H01Q3/28 ,  H01Q3/36

CPC classification number: H01Q21/22 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q1/28 ,  H01Q1/32

Abstract: A method for excitation of an array antenna across a specified bandwidth is disclosed. The specified bandwidth comprises M sample points, M being a positive integer >1, and the array antenna comprises N antenna elements, N being a positive integer ≥2. The method comprises forming a first matrix B(ω) defining an allowed frequency variation for an excitation coefficient for each antenna element, and forming a second matrix defining far field data for each antenna element at each sample point. Further the method comprises optimizing each excitation coefficient based on the formed first matrix and the formed second matrix, and controlling an excitation of the N antenna elements based on the optimized excitation coefficients. Hereby presenting a method for wideband optimization of the excitation coefficients for an array antenna.