公开(公告)号：US20220229166A1

公开(公告)日：2022-07-21

申请号：US17549643

申请日：2021-12-13

申请人： Ay Dee Kay LLC dba Indie Semiconductor

发明人： Tom Heller ,  Oded Katz ,  Danny Elad ,  Benny Sheinman

IPC分类号： G01S13/36 ,  G01S13/524 ,  G01S13/931 ,  H01Q3/26

摘要： An improved circuit configuration is disclosed for calibrating and/or verifying the operation of phase shifters in a phased array radar system. In one illustrative embodiment, a method includes: (i) programming a set of phase shifters to convert a radio frequency signal into a set of channel signals; (ii) splitting off a monitor signal from each channel signal while coupling the set of channel signals to a set of antenna feeds; and (iii) while taking the monitor signals in pairs associated with adjacent channels, measuring a relative phase between each pair of monitor signals.