| 摘要 |
PROBLEM TO BE SOLVED: To obtain a waveguide slot array antenna device capable of preventing the gain of two waveguide slot array antennas in a front direction from dropping. SOLUTION: The waveguide slot array antenna device includes: a waveguide slot array antenna 1a having a plurality of slots 4 provided as a radiating element on a waveguide 2a to form a beam B1 inclined with respect to the vertical direction of the axis of the waveguide 2a; a waveguide slot array antenna 1b having a plurality of slots 4 provided as a radiating element on a waveguide 2b to form a beam B2 inclined with respect to the vertical direction of the axis of the waveguide 2b; and a feeding part 3 for dividing an input-output signal into two to feed power to the respective waveguide slot array antennas. The angleαof inclination of the respective waveguide slot array antennas is set so as to make the direction of the beam B1 coincide with the direction of the beam B2. COPYRIGHT: (C)2011,JPO&INPIT
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