Transmitter using input modulation for envelope restoration scheme for linear high-efficiency power amplification
AssigneeEricsson Inc.
InventorsDavid R. Pehike, William O. Camp, Jr., Antonio J. Montalvo
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AssigneeEricsson Inc.
InventorsDavid R. Pehike, William O. Camp, Jr., Antonio J. Montalvo
Estimating the term…
An apparatus and method for creating an amplifier input waveform based on received phase and amplitude information from an input signal. The apparatus includes a first switch receiving phase information from a primary waveform and a second switch in communication with the first switch and the input. The second switch receives amplitude information from the primary waveform and receives the phase information from the first switch and uses the amplitude information to modulate the phase information. A secondary waveform is thus created for input to the amplifier load matching network. In this way, an amplitude modulated waveform is amplified at high efficiency, enabling application of either all or part of the phase and/or amplitude modulation at the input of the amplifier.
A switching circuit for providing a waveform for input into a load matching network in a “class E” amplifier, said circuit comprising:
A switching circuit for providing a waveform for input into the load matching network in a “class E” amplifier, said circuit comprising:
A method for providing a waveform for input to the load matching network of a “class E” amplifier, said method comprising the steps of:
A method for providing a waveform for input to the load matching network of a “class E” amplifier, said method comprising the steps of:
A method for providing a waveform for input to the load matching network of a “class E” amplifier, said method comprising the steps of:
Dependencies are inferred from the claim text.