Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2007-11-20
2007-11-20
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S117000
Reexamination Certificate
active
09307443
ABSTRACT:
A coupling device in FIG.3consisting of upper and lower connecting plates100and101with external flanges parallel to transmission line (103) for coupling RF energy for forward power detection. The coupling device (100) incorporates a helix structure with rotation centered near or about transmission line103and incorporates embedded secondary structures which are parallel to transmission line and fixed a predetermined distance from the transmission line (103). Theses plurality of parallel flanges are used to increase the coupling coefficient and directivity of the helix coupler (107) and maintain geometries that optimize magnetic field coupling. One or more vias (102) are used to connect individual upper connecting plate (100) and individual lower connecting plate (101) to form the overall helix structure. The addition of the parallel flanges to upper and lower connecting plates allow for a greater coupling efficiency per unit length of transmission line103.
REFERENCES:
patent: 2794958 (1957-06-01), Peter
patent: 4532484 (1985-07-01), Tajima et al.
patent: 5281929 (1994-01-01), Willems
patent: 5907266 (1999-05-01), Budka et al.
Lee Benny
Motorola Inc.
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