Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2005-05-31
2005-05-31
Tran, Congvan (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S327000, C455S190100
Reexamination Certificate
active
06901249
ABSTRACT:
A 3-terminal harmonic mixer which solves the conversion gain, port impedance and isolation problems associated with known harmonic mixers. In particular, the 3-terminal harmonic mixer in accordance with the present invention provides harmonically pumped anti-parallel diode mixing operation by utilizing the inherent characteristics of complementary transistors.
REFERENCES:
patent: 4193036 (1980-03-01), Cerny, Jr. et al.
patent: 4684833 (1987-08-01), Rinderle
patent: 4850039 (1989-07-01), Muterspaugh
patent: 6230001 (2001-05-01), Wyse
Cohn, Martin et al. “Harmonic Mixing with an Antiparallel Diode Pair”,IEEE Trans. Microwave Theory Tech., vol. MTT-23, pp. 667-673, Aug. 1975.
Katten Muchin Zavis & Rosenman
Northrop Grumman Corporation
Paniaguas John S.
Tran Congvan
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