Actively matched center-tapped marchand balanced mixer

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion

Reexamination Certificate

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Details

C455S330000, C455S333000, C327S113000

Reexamination Certificate

active

07020452

ABSTRACT:
An apparatus comprising an amplifier circuit, a tuning circuit and a mixer circuit. The amplifier circuit may be configured to generate an output signal at a first node in response to an input signal received through a second node. A tuning circuit may be (i) coupled between said second node of the amplifier circuit and third node and (ii) configured to adjust an impedance presented to the third node in response to a tuning voltage. A mixer circuit may have a center tap coupled to the third node.

REFERENCES:
patent: 3693106 (1972-09-01), Long et al.
patent: 4816784 (1989-03-01), Rabjohn
patent: 5003622 (1991-03-01), Ma et al.
patent: 5060298 (1991-10-01), Waugh et al.
patent: 5157786 (1992-10-01), Muterspaugh
patent: 5280648 (1994-01-01), Dobrovolny
patent: 5381084 (1995-01-01), Joshi et al.
patent: 5434546 (1995-07-01), Palmer
patent: 5678225 (1997-10-01), Kobayashi
patent: 5742897 (1998-04-01), Plowdrey et al.
patent: 6026286 (2000-02-01), Long
patent: 6351632 (2002-02-01), Yan et al.
patent: 6810241 (2004-10-01), Salib
patent: 6871059 (2005-03-01), Piro et al.
patent: 2001/0036818 (2001-11-01), Dobrovolny
patent: 2002/0094796 (2002-07-01), Woods et al.
patent: 2003/0171109 (2003-09-01), Ballweber et al.
patent: 2003/0199259 (2003-10-01), Macedo et al.
S. Basu and S.A. Maas, “Design and Performance of a Planar Star Mixer”, IEEE Transactions on Microwave Theory and Techniques, vol. 41, No. 11, Nov. 1993, pp. 2028-2030.
R.H. Jansen et al., “Improved Compaction of Multilayer MMIC/MCM Baluns Using Lumped Element Compensation”, IEEE, Jun. 1997, 4 pages.
Yeong J. Yoon et al., “Design and Characterization of Multilayer Spiral Transmission-Line Baluns”, IEEE Transactions on Microwave Theory and Techniques, vol. 47, No. 9, Sep. 1999, pp. 1841-1847.
Mitsuhiro Shimozawa et al., “A Parallel Connected Marchand Balun Using Spiral Shaped Equal Length Coupled Lines”, 1999 IEEE, pp. 1737-1740.
Stephen Maas, “A Broadband Planar Monolithic Ring Mixer”, IEEE 1996 Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 51-54.
Y.I. Ryu et al., “A Monolithic Broadband Doubly Balanced EHF HBT Star Mixer With Novel Microstrip Baluns”, IEEE 1995 Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 155-158.
S.A. Maas et al., “A Broadband, Planar, Doubly Balanced Monolithic Ka-Band Diode Mixer”, IEEE 1993 Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 53-55.

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