ELECTRICAL CIRCUIT FOR FILTERING A LOCAL OSCILLATOR SIGNAL AND HARMONIC REJECTION MIXER

An electrical circuit (10) is provided. The electrical circuit can have an input terminal (12) to receive an input signal and an output terminal (20) at which an output signal can be provided. The electrical circuit further comprises, a local oscillator (14), a first mixer (16), a second mixer (18),...

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Hauptverfasser: KOLI KIMMO, ENGLUND MIKKO JOHN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:An electrical circuit (10) is provided. The electrical circuit can have an input terminal (12) to receive an input signal and an output terminal (20) at which an output signal can be provided. The electrical circuit further comprises, a local oscillator (14), a first mixer (16), a second mixer (18), and a delay element (22). In the electrical circuit the first mixer is configured to receive an input signal from the input terminal and to mix the input signal with a local oscillator signal. Also, the second mixer is configured to receive said input signal from the input terminal and to mix the input signal with a delayed local oscillator signal, where the delayed local oscillator signal is said local oscillator signal fed via the delay element to the second mixer. The electrical circuit is configured to combine the output signal from the first mixer with the output signal from the second mixer to form an output signal at the output terminal. Hereby, an electrical circuit is provided thatcan efficiently handle t