Zero if down converter with even order harmonic suppression

Details Zero if down converter with even order harmonic suppression Zero if down converter with even order harmonic suppression

2005-07-13

2010-12-14

Urban, Edward (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S118000, C455S066100, C455S067110, C455S078000, C455S326000, C455S333000, C455S550100, C330S254000, C327S113000, C327S356000, C327S359000, C327S551000, C327S552000

Reexamination Certificate

active

07853233

ABSTRACT:
An embodiment is directed to a zero IF down converter circuit. The circuit comprises a voltage-to-current converter, a mixer, and a suppression circuit. The voltage-to-current converter converts an RF voltage signal to an RF current signal. The mixer changes the frequency of the current signal to a lower frequency current signal. The suppression circuit removes a lower frequency distortion component from the RF current signal before sending the RF current signal to the mixer.

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