Envelope tracking distributed amplifier
AssigneeSamsung Electronics Co., Ltd.
InventorMichael Brobston
Life of this patent
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Abstract
A system and method amplify a waveform in a wireless network. An envelope of a waveform is detected to form an envelope waveform. The envelope waveform is shaped to form a shaped waveform, the shaping based on one or more characteristics of a distributed amplifier. The shaped waveform is filtered to form a filtered waveform. The filtered waveform is amplified to form a first amplified waveform. The distributed amplifier amplifies at least a part the waveform based on the first amplified waveform to form a second amplified waveform.
Claims20
A method to amplify a waveform in a wireless network, the method comprising:
- detecting an envelope of a waveform to form an envelope waveform;
- shaping the envelope waveform to form a shaped waveform, the shaping based on one or more characteristics of a distributed amplifier;
- filtering the shaped waveform to form a filtered waveform;
- amplifying the filtered waveform to form a first amplified waveform;
- and
- amplifying, by the distributed amplifier, at least a part the waveform based on the first amplified waveform to form a second amplified waveform.
A mobile station (MS) configured to amplify a waveform, the MS comprising:
- a detector configured to detect an envelope of the waveform to form an envelope waveform;
- a shaper configured to shape the envelope waveform to form a shaped waveform based on one or more characteristics of a distributed amplifier;
- a filter configured to filter the shaped waveform to form a filtered waveform;
- an envelope amplifier configured to amplify the filtered waveform to form a first amplified waveform;
- and
- a distributed amplifier configured to amplify the waveform based on the first amplified waveform to form a second amplified waveform.
A Base Station (BS) configured to amplify a waveform, the BS comprising:
- a digital signal processor configured to:
- detect an envelope of the waveform to form an envelope waveform;
- and
- shape the envelope waveform to form a shaped waveform based on one or more characteristics of a distributed amplifier;
- a filter configured to filter the shaped waveform to form a filtered waveform;
- an envelope amplifier configured to amplify the filtered waveform to form a first amplified waveform;
- and
- a distributed amplifier configured to amplify the waveform based on the first amplified waveform to form a second amplified waveform.
Dependencies are inferred from the claim text.