Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2011-05-24
2011-05-24
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S756000
Reexamination Certificate
active
07948442
ABSTRACT:
A radio wave receiving converter includes a main body portion including a first waveguide having a male thread on an outer circumference of the first waveguide, a feedhorn including a second waveguide having a female thread on an inner circumference of the second waveguide, a ring-shaped member including a circumferential wall portion and an annular step portion such that a groove portion where a portion near a tip of the second waveguide is inserted between the ring-shaped member and the outer circumference of the first waveguide is formed, and a sealing agent injected into a groove portion “b”. By this configuration, there is provided a radio wave receiving converter that has a simple structure of a connecting portion, has improved productivity of the components and assemblability of the finished components, and can achieve a reduction in size and weight.
REFERENCES:
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patent: 6118412 (2000-09-01), Chen
patent: 6140893 (2000-10-01), Sciarrino
patent: 6819299 (2004-11-01), Miyazaki
patent: 63-169702 (1988-11-01), None
patent: 8-316701 (1996-11-01), None
patent: 2003-243901 (2003-08-01), None
patent: 2004-120348 (2004-04-01), None
Birch & Stewart Kolasch & Birch, LLP
Chen Shih-Chao
Sharp Kabushiki Kaisha
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