| 摘要 |
<p>The invention is related to antenna equipment and can be used in radio communications, radiolocation, radioastronomy, radiometeorology and radionavigation. Dual-mirrored antenna consists of primary parabolic mirror, auxiliary parabolic mirror and sensor, according to the invention, focuses of primary parabolic mirror and auxiliary parabolic mirror coincide and parabolic generators of both mirrors are defined by following correlation: x<2>+y<2>=(R-x)<2>; x<2>+y<2>=(r-x)<2>, where R is the radius of generator of primary parabolic mirror; r is the radius of generator of auxiliary parabolic mirror; x and y are datum lines. Proposed antenna can be made in following variations: Raster (aperture) angles of primary parabolic mirror (1) and auxiliary parabolic mirror (2) are equal. Convex surface of auxiliary parabolic mirror (2) is directed towards concave surface of primary parabolic mirror (1). Concave surface of auxiliary parabolic mirror (2) is directed towards concave surface of primary parabolic mirror (1). Sensor (3) is installed between primary parabolic mirror (1) and auxiliary parabolic mirror (2). Sensor (3) is installed at exterior of primary parabolic mirror (1), where an aperture (5) for electromagnetic waves reflected by auxiliary parabolic mirror (2) is made. Sensor (3) diameter is equal to auxiliary parabolic mirror (2) diameter.</p> |
