Waveguide group branching filter

Details Waveguide group branching filter Waveguide group branching filter

2005-01-25

2005-01-25

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S126000, C333S02100R, C333S121000, C333S122000

Reexamination Certificate

active

06847270

ABSTRACT:
The waveguide group branching filter according to the present invention is formed by boring out of two metal blocks constituent circuits including a circular-to-square waveguide multistage transformer1, the branch waveguide polarizer/branching filter4, a rectangular waveguide multistage transform9, the rectangular waveguide H-plane T-branch circuit10, and waveguide band-pass filters8, 14and18; radio waves V1and H1, which have their polarization planes vertical and horizontal, respectively, to the branching plane of the branch waveguide polarizer/branching filter4in a certain frequency band f1, and a radio wave V2of the same polarization plane as that of the radio wave V1in a frequency band f2higher than the frequency band f1are incident to an input port P1, and the radio wave V1is emitted from an output port P2, the radio wave H1from an output port P3and the radio wave V2from an output port P4.

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