Method and system for software defined antenna control

Details Method and system for software defined antenna control Method and system for software defined antenna control

2011-01-04

2011-01-04

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C343S745000, C343S876000

Reexamination Certificate

active

07864133

ABSTRACT:
Methods and systems for reducing AM/PM and AM/AM distortion are disclosed and may comprise selectively coupling and impedance matching one of a plurality of tunable antennas to a single programmable output stage comprising a single power amplifier on a chip in a transmitter. A programmable matching circuit comprising adjustable inductance and capacitance may be used to impedance match the antenna to the output stage. The selected tunable antenna may be coupled to the output stage utilizing a programmable switch array, which may comprise at least one integrated transistor, for example. The tunable antennas may be designed to operate in different frequency bands and to be tuned within one or more frequency bands. The programmable matching circuit may be integrated on the chip or external to the chip. The matching circuit capacitance may be integrated on-chip, and the inductance may be located off-chip.

REFERENCES:
patent: 5991643 (1999-11-01), Chao-Cheng
patent: 7663555 (2010-02-01), Caimi et al.

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