| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coaxial feed slot array antenna which has enhanced flexibility of radiation slot arrangement, can vary width and inclination of a main beam and simultaneously suppresses a grating lobe. <P>SOLUTION: The coaxial feed slot array antenna includes: a coaxial line part 3 comprised of a coaxial internal conductor 4 and a coaxial external conductor 6 including the coaxial internal conductor inside; a feeding waveguide part 7 which feeds electromagnetic wave to the coaxial line part 3 via a feed slot 2; and a sub-array 20 comprised of a plurality of slots 1 formed on the outer wall surface of the coaxial external conductor 6 according to the coaxial line part 3, and fills a foaming dielectric body 5 having predetermined foaming rate into a space surrounded by the coaxial internal conductor 4 and the coaxial external conductor 6. <P>COPYRIGHT: (C)2009,JPO&INPIT |
