Pyramidal Horn

Some articles on horn, horns, pyramidal horn:

Horn Antenna - Types
... These are the common types of horn antenna ... Horns can have different flare angles as well as different expansion curves (elliptic, hyperbolic, etc.) in the E-field and H-field directions, making possible a wide variety of different beam profiles ... Pyramidal horn (a, right) – a horn antenna with the horn in the shape of a four-sided pyramid, with a rectangular cross section ...

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