| 摘要 |
PURPOSE:To make a high-speed scanning possible with preventing the gain lowering of a double curve-type reflection mirror antenna by arranging three or more rows of linear arrangement phased array antennas in the primary radiator and compensating the astigmation accompanied with beam deflection within an angle range wider in comparison with the beam width. CONSTITUTION:In the reflection mirror antenna where double curve-type reflection mirror 2 having a curve face, which is formed by center sectional curves C1, R and C2 and intersectional curve groups T1, R and T2 orthogonal to curves C1, R and C2, is provided and linear phased array antennas as the primary radiator of this reflection mirror 2 are provided, three or more rows of linear phased array antennas 1, 3 and 4 are arranged. Then, in respect to the astigmation of the x-direction mirror face generated by beam deflecting, this antenna is so constituted that the astigmation within a wide angle may be compensated by controlling the phase supplied to each element of antennas 1, 3 and 4. |
