Frequency-conversion mixer

Details Frequency-conversion mixer Frequency-conversion mixer

1990-07-18

1993-05-18

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, 307529, H04B 126

Patent

active

052128350

ABSTRACT:
A frequency-conversion mixer, which is designed to operate in substantially the whole range of the radio frequency band extending from low frequency to the ultra-high frequency, has first and second diodes inversely arranged in parallel connection between a first input terminal for a receiving signal and a junction point. Third and fourth diodes are connected in forward series between a common terminal and a second input terminal for an oscillator signal with the junction point between the third and fourth diodes. A dc component removing capacitor is connected to the junction point for providing a frequency mixed signal, whereby the use of a transformer as used in a double balanced mixer is eliminated and there is practically no output response at frequencies below the cutoff frequency of the diodes.

REFERENCES:
patent: 4245355 (1981-01-01), Pascoe et al.
Heller, S. "Transitorized Mixer Circuit", RCA Technical Notes; Jan. 9, 1961, pp. 1-2.

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