| 摘要 |
A BS converter comprises a box-shaped housing (1) formed of a metallic material and incorporating a circuit board therein, with an electric circuitry being formed on said circuit board; a cylindrical waveguide portion (2) formed of a metallic material and connected at one end thereof to said housing; and a cylindrical horn portion (3) formed of a metallic material and connected to the opposite end of said waveguide portion, wherein said housing, said waveguide portion and said horn portion are separately formed by deep drawing, said housing and said waveguide portion are connected to each other, and said waveguide portion and said horn portion are connected to each other. <IMAGE> |
