Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2007-04-17
2007-04-17
Takaoka, Dean (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S026000, C333S202000
Reexamination Certificate
active
11004310
ABSTRACT:
A balun device provides a more suitable technique for a broader band application which has been difficult for conventional baluns. The balun device has a balun unit, which is provided with a balanced line and an unbalanced line, and a matching circuit connected to the unbalanced line, wherein the matching circuit is composed of a high-pass filter.
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patent: 6788164 (2004-09-01), Maekawa et al.
patent: 6937845 (2005-08-01), Watanabe et al.
patent: 6952142 (2005-10-01), Guitton et al.
patent: 2002-271036 (2001-03-01), None
patent: 2002-43882 (2002-02-01), None
Inoue Makoto
Watanabe Satoshi
Knobbe Martens Olson & Bear LLP
Taiyo Yuden Co. Ltd.
Takaoka Dean
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