Phase shifter circuit with proper broadband performance

Details Phase shifter circuit with proper broadband performance Phase shifter circuit with proper broadband performance

2006-12-01

2009-12-15

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Coupling networks

Delay lines including a lumped parameter

C333S168000, C333S172000

Reexamination Certificate

active

07633358

ABSTRACT:
A phase shifter circuit includes a plurality of first series circuits each comprised of a series connection of one capacitor and one resistor, a first circuit element including at least inductance connecting between a first end and a second end of a chain structure made by connecting the plurality of first series circuits in series, the first circuit element and the chain structure together constituting a first loop circuit, a plurality of second series circuits each comprised of a series connection of one capacitor and one resistor, a second circuit element including at least inductance connecting between a first end and a second end of a chain structure made by connecting the plurality of second series circuits in series, the second circuit element and the chain structure together constituting a second loop circuit, and a plurality of connection lines connecting between the first loop circuit and the second loop circuit.

REFERENCES:
patent: 5736840 (1998-04-01), Otaka et al.
patent: 6388543 (2002-05-01), Molnar et al.
patent: 6529100 (2003-03-01), Okanobu
patent: 6690243 (2004-02-01), Henrion
patent: 7196915 (2007-03-01), Savio et al.
patent: 7405636 (2008-07-01), Ozasa et al.
patent: 06-069753 (1994-03-01), None

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