Antenna forming external device for reception of ultrahigh frequency signals of TV programs, has antenna including central portion on which waveguide is coupled, and cover plate for covering and sealing envelope

摘要

The device has a reflection case (22), which is received in a receiving compartment (210) of an envelope (21). The case is surrounded by reflection plates (221). Bottom of the case is stamped to form openings and tabs (222). A diamond shaped antenna (23) has two quadrilateral panels (231, 232) with upper and lower ends coupled to the tabs. The antenna has a central portion on which a waveguide (233) is coupled. A cover plate (24) covers and seals the envelope.