Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-07-18
2010-02-16
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S109000, C333S116000, C333S128000, C333S136000
Reexamination Certificate
active
07663449
ABSTRACT:
A divider may include a stem or first port, and two or more branch ports connected or coupled directly or indirectly to the first port. As mentioned, a divider may include multiple sections. In some examples, a divider may include at least an inductively uncoupled section and an inductively coupled section. An uncoupled section may be characterized by a plurality of associated transmission lines that are substantially inductively uncoupled. On the other hand, a coupled section may include a plurality of associated transmission lines that are substantially inductively coupled. A divider section may include a resistor connected between ends of associated first and second transmission lines in a coupled or uncoupled section. In some examples, one or more uncoupled sections are connected in series to the first port and one or more coupled sections are connected in series between the uncoupled sections and the second and third ports.
REFERENCES:
patent: 3091743 (1963-05-01), Wilkinson
patent: 3516025 (1970-06-01), Podell
patent: 3529265 (1970-09-01), Podell
patent: 3761843 (1973-09-01), Cappucci
patent: 3883828 (1975-05-01), Cappucci
patent: 3988705 (1976-10-01), Drapac
patent: 4263559 (1981-04-01), Ho
patent: 4556856 (1985-12-01), Presser
patent: 4636755 (1987-01-01), Gibbs
patent: 4721929 (1988-01-01), Schnetzer
patent: 5206611 (1993-04-01), Russell
patent: 5847625 (1998-12-01), Gillette
patent: 6236272 (2001-05-01), Takei et al.
patent: 6300848 (2001-10-01), Miyaji et al.
patent: 6472950 (2002-10-01), London
patent: 6570466 (2003-05-01), Bahl
patent: 6822531 (2004-11-01), Carlson
patent: 6992616 (2006-01-01), Grudkowski et al.
patent: 7142052 (2006-11-01), Zelley
patent: 2004/0263281 (2004-12-01), Podell
patent: 2005/0122185 (2005-06-01), Podell
patent: 2005/0122186 (2005-06-01), Podell
patent: 2005/0146394 (2005-07-01), Podell
patent: 2005/0156686 (2005-07-01), Podell
patent: 2006/0066418 (2006-03-01), Podell
Search report for the corresponding British application serial No. GB0713768.0 dated Oct. 29, 2007.
Cohen, Seymour B. “A Class of Broadened Three-Port TEM-Mode Hybrids.”IEEE Transactions on Microwave Theory and Techniques. vol. MTT-16, No. 2. Feb. 1998, pp. 110-116.
Park, Ung-Hee, et al. “A 700- to 2500-MHz Microstrip Balun Using a Wilkinson Divider and 3-dB Quadrature Couplers.”Microwave and Optical Technology Letters. vol. 47, No. 4. Nov. 20, 2005, pp. 333-335.
United Kingdom Intellectual Property Office, Euros Morris, Examiner, “Examination Search Report under Section 18(3)” for application No. GB0713768.0, date of report Jul. 27, 2009 (2 pages). GB0713768.0 is a counterpart foreign application to this U.S. Appl. No. 11/458,332.
Glenn Kimberly E
Kolisch Hartwell PC
Pascal Robert
Werlatone, Inc
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