Intermediate frequency independent star mixer

Details Intermediate frequency independent star mixer Intermediate frequency independent star mixer

1991-06-21

1993-11-23

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, 307529, H04B 126

Patent

active

052652696

ABSTRACT:
An apparatus for mixing electrical signals including in combination: first signal splitting means having a radio frequency (RF) port and first, second, third and fourth signal ports, second signal splitting means having a local oscillator (LO) port and first, second, third and fourth signal ports, intermediate frequency (IF) port, and mixer element means, the mixer element means coupled to the first, second, third, and fourth signal ports of the first and second signal splitting means and coupled to the intermediate frequency port means, for mixing two of the RF, IF, and LO signals to produce the remaining signal.

REFERENCES:
patent: 4531236 (1985-07-01), Ishihara
patent: 4603436 (1986-07-01), Butler
patent: 4896374 (1990-01-01), Waugh et al.
patent: 5060298 (1991-10-01), Waugh et al.

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