Multi-stack power amplifier
AssigneeSamsung Electronics Co., Ltd.
InventorsJongwon YUN, Jaeyoun JUNG, Hyunchul PARK, Sangmin YOO, Joonhoi HUR
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Abstract
A multi-stack power amplifier having a differential structure includes a first stack including a first amplifier element, configured to amplify a first signal having a first phase, and a second amplifier element configured to amplify a second signal having a second phase opposite to the first phase; and a second stack including a third amplifier element, connected to an output terminal of the first amplifier element through a first interconnection, and a fourth amplifier element connected to an output terminal of the second amplifier element through a second interconnection intersecting the first interconnection.
Claims20
A multi-stack power amplifier having a differential structure, the multi-stack power amplifier comprising:
- a first stack comprising a first amplifier element, configured to amplify a first signal having a first phase, and a second amplifier element configured to amplify a second signal having a second phase opposite to the first phase;
- and
- a second stack comprising a third amplifier element, connected to an output terminal of the first amplifier element through a first interconnection, and a fourth amplifier element connected to an output terminal of the second amplifier element through a second interconnection intersecting the first interconnection.
A multi-stack power amplifier having a differential structure, the multi-stack power amplifier comprising:
- a first stack comprising a first amplifier element, configured to amplify a first signal having a first phase, and a second amplifier element configured to amplify a second signal having a phase opposite to the first phase;
- and
- a second stack comprising a third amplifier element, configured to amplify an output signal of the first amplifier element, and a fourth amplifier element configured to amplify an output signal of the second amplifier element,
- wherein
- the first amplifier element and the second amplifier element are cross-coupled to the third amplifier element and the fourth amplifier element to form a virtual ground between the first stack and the second stack.
A multi-stack power amplifier having a differential structure, the multi-stack power amplifier comprising:
- a first amplifier stage comprising a first amplifier element, configured to amplify a first signal having a first phase, and a second amplifier element configured to amplify a second signal having a phase opposite to the first phase;
- and
- a second amplifier stage comprising a third amplifier element, connected to an output terminal of the first amplifier element through a first interconnection, and a fourth amplifier element connected to an output terminal of the second amplifier element through a second interconnection intersecting the first interconnection,
- wherein
- inductance of the first interconnection has a value causing an output signal of the first amplifier element and an output signal of the third amplifier element to be in phase, and
- inductance of the second interconnection has a value causing an output signal of the second amplifier element and an output signal of the fourth amplifier element to be in phase.
Dependencies are inferred from the claim text.