CONVERTER FOR SATELLITE BROADCASTING RECEIVING

Japanese Patent JP3905341

B2

PROBLEM TO BE SOLVED: To reduce production costs and to improve versatility in a converter for satellite broadcasting receiving for receiving radio waves transmitted from a plurality of adjacent satellites.
SOLUTION: Dielectric feeders 3 and 4 are respectively held on first and second waveguides 1 and 2 parallel locating mutual axial lines and as a correcting part, a projecting wall 34 or thick part 35 is provided on a front face part 9a of a waterproof cover 9 for covering radiation parts 10 and 14 of the respective dielectric feeders 3 and 4. Thus, when radio waves transmitted from adjacent first and second satellites S1 and S2 are to be made incident to the inside of the respective waveguides 1 and 2 after convergence on a reflecting mirror, the phases of radio waves to pass the waterproof cover 9 can be delayed by the correcting part (projecting wall 34 or thick part 35). Therefore, the radiation pattern of the radio waves to be made incident to the respective waveguides 1 and 2 can be controlled to be reflected on the common part of the reflecting mirror and the required reflecting mirror can be miniaturized.

Masashi Nakagawa
String pearl
Kazuhiro Sasaki

JP2001289777A

April 18, 2007

September 21, 2001

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ALPS ELECTRIC CO.,LTD.

H04B1/08; H01P1/17; H01Q13/02; H01Q19/17; H04B1/18; H04N5/00; H04N7/20; H04N21/61; H04N21/647; (IPC1-7): H04B1/08; H01P1/17; H01Q13/02; H01Q19/17; H04B1/18; H04N5/00; H04N7/20

JP10145138A
JP10163737A
JP10173562A

US6075497

Kenjiro Take
Ichiro Suzuki
Hirohiro Ichimura
Kazuo Kobayashi

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