Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potential
AssigneeInfineon Technologies AG
InventorJosef Fenk
Life of this patent
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Abstract
A power amplifier arrangement having a distributed antenna is disclosed. The power amplifier arrangement has two or more signal paths which are coupled to a common input. Each signal path has an amplifier with a downstream antenna. The respective signal paths with the antenna are activated or deactivated by a control device as a function of the desired gain or output power. This results in high efficiency over a wide frequency range. The polar diagrams of the antenna branches preferably correspond to those of a single antenna.
Claims19
A power amplifier arrangement, comprising:
- an input;
- a first signal path coupled to the input and comprising a first amplifier;
- a first antenna in the first signal path coupled to one output of the first amplifier;
- a second signal path coupled to the input and comprising a second amplifier;
- a second antenna in the second signal path coupled to one output of the second amplifier;
- and
- a control device coupled to the first signal path and the second signal path, and configured to selectively activate and deactivate the first and second amplifiers as a function of a desired gain of the power amplifier arrangement,
- the first and the second amplifiers coupled to a supply potential connection at an output via the respecively associated first and second antennas.
An amplifier arrangement, comprising:
- a first signal path extending between an intermediate input and an output of the arrangement, and comprising a first amplifier and a first antenna serially coupled thereto;
- a second signal path coupled in parallel with the first signal path, and comprising a second amplifier and a second antenna serially coupled thereto, wherein the first and second signal paths comprise a first amplifier stage;
- a second amplifier stage connected in series with the first amplifier stage between an input of the arrangement and the intermediate input;
- a bypass signal path extending between the input and the output, and comprising a bypass amplifier and a by pass antenna;
- and
- a control unit operably coupled to the first, second and bypass signal paths, and configured to selectively activate or deactivate the first, second or by pass amplifiers as a function of a desired gain of the amplifier arrangement.
A method for amplifying and emitting a signal, comprising:
- activating at least one of two or more amplifiers which are connected between an input and an output of a power amplifier arrangement, as a function of a desired gain for the signal;
- activating at least one of two or more antennas which are respectively associated with the amplifiers, as a function of the desired signal gain, the two or more antennas coupling respective amplifiers to a supply potential at the output;
- amplifying the signal at the input with the activated amplifiers;
- and
- emitting the amplified signal at the output using the activated antennas.
Dependencies are inferred from the claim text.