Marchand-type distributed balun

Details Marchand-type distributed balun Marchand-type distributed balun

2007-05-08

2007-05-08

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S026000, C336S200000

Reexamination Certificate

active

10934138

ABSTRACT:
A mode-switching transformer including a first conductive line between two common-mode access terminals and a second conductive line between two differential mode access terminals, the lines being coupled and sized according to a central operating frequency of the transformer, each line being formed of two stacked spirals in two different metallization levels and each spiral of a line being interdigited with a spiral of the other line.

REFERENCES:
patent: 6097273 (2000-08-01), Frye et al.
patent: 6396362 (2002-05-01), Mourant et al.
patent: 6653910 (2003-11-01), Escalera et al.
patent: 2002/0113682 (2002-08-01), Gevorgian et al.
patent: 2003/0137383 (2003-07-01), Yang et al.
patent: 2003/0151881 (2003-08-01), Yue
French Search Report from French Patent Application 03/50503 filed Sep. 4, 2003.

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