| 摘要 |
A scanning antenna (1) has, a first waveguide (2) with parallel metal plates (10, 11), a waveguide feed (19) substantially at a focus (15) of the first waveguide (2), the plates (10, 11) being partially filled therebetween with a biconvex dielectric body (21) emanating a wave of planar phase front, and a planar waveguide bend (4) having a planar profile (13) redirecting an incident wave of planar phase front for propagation in a second waveguide (3) having an array of radiating antenna elements (5).
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