| 摘要 |
PROBLEM TO BE SOLVED: To allow the mono-pulse transceiver to obtain presence information of an object by an antenna beam, to obtain relative direction display information of a drive path of a vehicle and to obtain the mono-pulse transmitter-receiver with a high efficiency and a low loss. SOLUTION: A flat plate micro strip antenna 12 is made up of a metallic board 16 having a printed circuit board 24 on one side and pluralities of patch elements 22 placed on the printed circuit board 24 and placed along rows and columns in a matrix shape, small connection pieces are used to form arrays 28, 30 of 1st and 2nd patch elements 22 on the printed circuit board 24 and are connected between 1st and 2nd feeding points and pluralities of the patch elements 22 on the printed circuit board 24, the arrays 28, 30 are arranged laterally and connected to the feeding points, the feeding points are extended to the opposite side through the metallic board 16 and a microstrip transceiver 10 is placed on one side of the metallic board 16. |
