Communications: radio wave antennas – Antennas – Microstrip
Patent
1997-09-12
1999-11-30
Le, Hoanganh
Communications: radio wave antennas
Antennas
Microstrip
343850, 343853, H01Q 138
Patent
active
059950498
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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Komatsu Satoru
Urabe Masanobu
Honda Giken Kogyo Kabushiki Kaisha
Le Hoang-anh
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