Broadband 180° degree hybrid microwave planar transformer

Details Broadband 180° degree hybrid microwave planar transformer Broadband 180° degree hybrid microwave planar transformer

2007-12-11

2007-12-11

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S100000

Reexamination Certificate

active

11261690

ABSTRACT:
A hybrid 180° microwave balun device is provided to convert an unbalanced RF signal at the common port into two radio frequency signals with equal amplitude and 180° phase difference at two differential ports. The hybrid device includes a coplanar waveguide connecting to the common port. A power divider separates the coplanar waveguide into two symmetrical slotline waveguides to carry balanced signals. Two broadband multioctave slotline to microstrip transitions constructed in a way that the microstrip lines carry 180° phase separated signals to the differential output ports.

REFERENCES:
patent: 5125111 (1992-06-01), Trinh
patent: 5821815 (1998-10-01), Mohwinkel

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