DIFFERENTIAL RF/MICROWAVE POWER AMPLIFIER USING INDEPENDENT SYNCHRONIZED POLAR MODULATORS
First Claim
Patent Images
1. A method for generating an amplified signal, the method comprising:
- producing a first amplified signal at a first amplifier;
producing a second amplified signal at a second amplifier; and
at a subtraction unit receiving said first amplified signal and second amplified signal, generating a differential signal representing difference between said first amplified signal and said second amplified signal, said differential signal being a final amplified signal having a final modulated amplitude and a final modulated phase.
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Abstract
A first amplified signal is produced at a first amplifier, a second amplified signal is produced at a second amplifier, and a differential signal representing difference between the first amplified signal and the second amplified signal is generated at a subtraction unit receiving the first amplified signal and second amplified signal, the differential signal being a final amplified signal having a final modulated amplitude and a final modulated phase.
72 Citations
27 Claims
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1. A method for generating an amplified signal, the method comprising:
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producing a first amplified signal at a first amplifier;
producing a second amplified signal at a second amplifier; and
at a subtraction unit receiving said first amplified signal and second amplified signal, generating a differential signal representing difference between said first amplified signal and said second amplified signal, said differential signal being a final amplified signal having a final modulated amplitude and a final modulated phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for generating an amplified signal comprising:
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a first amplifier producing a first amplified signal;
a second amplifier producing a second amplified signal; and
a subtraction unit receiving connected with said first and second amplifiers and receiving said first and second amplified signals, said subtraction unit generating a differential signal representing difference between said first and second amplified signals, said differential signal being a final amplified signal having a final modulated amplitude and a final modulated phase. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A system for generating an amplified signal, comprising:
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means for producing a first amplified signal at a first amplifier;
means for producing a second amplified signal at a second amplifier;
means for generating a differential signal representing difference between said first amplified signal and said second amplified signal, said differential signal being a final amplified signal having a final modulated amplitude and a final modulated phase.
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26. A method of forming a communications signal, comprising:
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forming a first modulated signal component;
forming a second modulated signal component; and
combining the first modulated signal component and second modulated signal component to form as the communications signal a difference between the first modulated signal component and second modulated signal component.
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27. An apparatus for forming a communications signal, comprising:
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means for forming a first modulated signal component;
means for forming a second modulated signal component; and
means for combining the first modulated signal component and second modulated signal component to form as the communications signal a difference between the first modulated signal component and second modulated signal component.
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Specification