Transformer, transmitter circuit, semiconductor chip, semiconductor package, base station, mobile device, and method for a radio frequency transmitter
AssigneeIntel Corporation
InventorsDaniel Gruber, Mark Elzinga, Martin Clara
Life of this patent
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Abstract
The present disclosure relates to a concept for a transformer, a transmitter circuit, a semiconductor chip, a semiconductor package, a base station, a mobile device and a method for a radio frequency transmitter. The transformer for a radio frequency transmitter circuit comprises a primary coil and a secondary coils, which are configured to receive an input signal and to provide an output signal, and a ternary coil configured to provide a feedback signal.
Claims26
A transformer for a radio frequency transmitter circuit, comprising;
- a primary coil and a secondary coil, which are configured to receive an input signal and to provide an output signal;
- and
- a ternary coil configured to provide a feedback signal,
- wherein the primary coil is configured to couple a first part of the power from the input signal to the output signal and wherein the primary coil is configured to couple a second part of the power from the input signal to the feedback signal, wherein the second part of the power is less than a quarter of the first part of the power.
A method for a radio frequency transmitter circuit, the method comprising
- amplifying, mixing, or converting a signal to obtain a transmit signal;
- inputting the transmit signal into a primary coil of a transformer, the transformer further comprising a secondary coil and a ternary coil;
- forwarding an output signal of the secondary coil of the transformer to a transmit antenna path of the radio frequency transmitter circuit for radio transmission;
- determining pre-distortion information based on a feedback signal output by the ternary coil of the transformer;
- and
- pre-distorting the signal based on the pre-distortion information.
Dependencies are inferred from the claim text.