| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an array antenna device which can be made compact and lightweight and can be easily mass-produced. <P>SOLUTION: The array antenna device comprises: a distribution/combination circuit constituted of a dielectric-filled waveguide in which a waveguide is formed by covering the outer circumference of a dielectric with a metal film; and eight radiation elements 12a-12h constituted of a dielectric and connected to a plurality of distribution terminals of the distribution/combination circuit, respectively, wherein the distribution/combination circuit includes T-branch circuits 10a-10g for distributing into two a radio wave input from an input terminal P1, and E-plane bends 11a-11n connected to each of two branch portions of the T-branch circuit, for changing the propagation direction of radio waves. <P>COPYRIGHT: (C)2009,JPO&INPIT |
