Sharp Kabushiki Kaisha Corporation

Ryoko Miyazaki

Makoto Hirota

A radio wave receiving converter in accordance with the present invention is for receiving satellite broadcast, and includes a body portion having a first feed horn portion, a second feed horn portion connected to first feed horn portion, and a sheet sandwiched between first feed horn portion and second feed horn portion and maintaining air tightness at a connected portion of first feed horn portion and second feed horn portion. An antenna device in accordance with the present invention includes the radio wave receiving converter as described above and a reflective parabolic portion reflecting a received radio wave and leading it to the radio wave receiving converter.

Radio wave receiving converter and antenna device

A pair of wave receiving probes is provided on opposite sides of an opening portion formed in a substrate. A waveguide is provided on one side of the substrate, and a wave reflecting unit is provided on the other side of the substrate. The wave reflecting unit is provided with a wave reflecting surface on an inner side of its end surface portion. A partition wall in a stepped pattern is provided in the waveguide, which penetrates the opening portion and extends to the end surface portion, thereby dividing the wave reflecting surface into two. The partition wall partitions the wave-guiding space formed by the waveguide, substrate and wave reflecting unit into two spaces. Accordingly, a polarized wave separator excellent in separating characteristics and preventing wave loss is realized.

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Nishinomiya, Japan

Ryoko Miyazaki