Frequency conversion circuit with linear feedback

Details Frequency conversion circuit with linear feedback Frequency conversion circuit with linear feedback

1995-02-17

1997-02-25

Pham, Chi H.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

327358, 327363, H04B 128

Patent

active

056067380

ABSTRACT:
A frequency conversion circuit having at least one transistor with an input terminal and an output terminal. A frequency signal to be converted or a local oscillator (LO) signal is input to the input terminal, and a converted frequency signal is output from the output terminal. A linear feedback circuit allowing at least a radio frequency (RF) signal and the LO signal to feed back is directly connected across the input and output terminals.

REFERENCES:
patent: 5083050 (1992-01-01), Vasile
patent: 5465415 (1995-11-01), Bien
patent: 5465420 (1995-11-01), Dougherty et al.
"A GaAs MESFET Mixer with Very Low Intermodulation", Maas, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-35, No. 4, Apr. 1987, pp. 425-429.
"An Unusual Microwave Mixer", Tomassetti, Proc. 16th Microwave Conf., 1987, pp. 754-759.

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