Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2007-05-08
2007-05-08
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S02100R
Reexamination Certificate
active
11061582
ABSTRACT:
There is disclosed herein a waveguide rotator for use with a dual polarization waveguide probe system. The waveguide has an internal structure that protrudes into the waveguide such that a first orthogonal component of the incident polarized signal propagates to the end of the waveguide and is reflected therefrom and the second orthogonally polarized component is cut-off by the protruding structure which narrows the waveguide, at a distance from a short circuit at the end of the waveguide, and is reflected substantially at the cut-off point, the cut-off point being frequency dependant. At some predetermined distance from the reflecting means and the cut-off point, the first component and the second component are recombined such that the polarization of the recombined structure is rotated 90° from the incident polarization. The protruding interior surface creates a pocket or cavity behind the waveguide into which components from a circuit board can be inserted.
REFERENCES:
patent: 6018276 (2000-01-01), Hirota et al.
patent: WO 96/28857 (1996-09-01), None
Baird Andrew Patrick
Stokes Jamie
Channel Master Limited
Darby & Darby
Lee Benny
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