Radar module and antenna device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Jul 16, 1999
filing date -
Mar 23, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radar module has an antenna assembly, a plurality of transmitting and receiving assemblies, and a plurality of circulators all mounted on a dielectric substrate. The antenna assembly has a plurality of transmitting and receiving channels including respective planar array antenna elements each composed of a plurality of patches connected to and spaced along a linear distal end portion of a feeder line. The planar array antenna elements are arrayed in a direction substantially perpendicular to the linear distal end portion of the feeder line. The transmitting and receiving assemblies, implemented as monolithic microwave integrated circuits, selectively transmit high-frequency signals to the planar array antenna elements and selectively receive echo signals from the planar array antenna elements. The circulators are associated with the transmitting and receiving channels, respectively, and connect the respective linear distal end portions of the feeder lines to transmission and reception end portions which are connected to the transmitting and receiving assemblies, respectively.
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