Plural rectangular waveguides having longer cross-sectional...

Details Plural rectangular waveguides having longer cross-sectional... Plural rectangular waveguides having longer cross-sectional...

2009-03-06

2011-11-08

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Plural channel systems

C333S034000, C333S137000, C333S239000

Reexamination Certificate

active

08054142

ABSTRACT:
Long-side length a1to a5of rectangular waveguide tubes in a long-side direction (magnetic field direction) become greater, the shorter a line length is (the closer a rectangular waveguide tube is to the center). ai and Li are set such that line lengths L1to L5of each rectangular waveguide tube is Li=mλgi (i=1 to 5, and m is a positive integer number), with guide wavelengths of each rectangular waveguide tube, determined by the length a1to a5, as λg1to λg5. Hence, the line length Li of each rectangular waveguide tube can be arbitrarily set, while maintaining a phase relationship between high frequency signals transmitted by each rectangular waveguide tube. When a difference in line lengths between rectangular waveguide tubes is set to be shorter, the degree of freedom in arrangement of the rectangular waveguide tubes can be improved while suppressing the degradation of propagation characteristics caused by temperature change.

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Office Action dated Jan. 26, 2010 in Japanese Application No. 2008-056396 with English translation thereof.

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