Radio-frequency transmitter and amplifier
AssigneeIntel IP Corporation
InventorOmid Oliaei
Life of this patent
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Abstract
A method is provided for reducing non-linear effects in an electronic circuit including an amplifier. The method may include receiving a modulated signal at an input of the amplifier, the modulated signal comprising a baseband signal modulated by an oscillator frequency. The method may further include substantially attenuating counter-intermodulation in the modulated signal caused by harmonics of the oscillator frequency and the baseband signal by a resonant circuit. In some embodiments, the resonant circuit may include at least one inductive element and one capacitive element coupled to the at least one inductive element, the at least one inductive element and the at least one capacitive element configured to substantially attenuate counter-intermodulation in the modulated signal.
Claims20
A radio transmitter, comprising:
- an amplifier configured to:
- receive a modulated signal at an amplifier input;
- amplify the modulated signal;
- and
- substantially reduce harmonics associated with at least one of an oscillator frequency and a baseband signal associated with the modulated signal.
An amplifier, comprising:
- a transistor having at least three terminals;
- and
- a resonant degeneration impedance coupled to a first terminal of the at least three terminals, the resonant degeneration impedance having at least one inductive element and at least one capacitive element coupled to the at least one inductive element.
A method for reducing non-linear effects in an electronic circuit including an amplifier, comprising:
- receiving a modulated signal at an input of an amplifier having a resonant degeneration impedance, the modulated signal based on a baseband signal modulated by an oscillator frequency;
- and
- amplifying the modulated signal and substantially reducing harmonics associated with at least one of the oscillator frequency and the baseband signal.
Dependencies are inferred from the claim text.