Signal power dynamic range compressing circuit and power amplifier using the same
First Claim
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1. A signal power dynamic range compressing circuit comprising:
- a directional coupler for distributing an input signal to two paths;
a linear signal transfer path over which to linearly transfer the one distributed input signal;
a compressing signal generating path for generating a compressing signal containing a component opposite in phase to the other distributed input signal; and
a power combiner for power-combining output signals from said linear signal transfer path and said compressing signal generating path.
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Abstract
In an input signal power dynamic range compressing circuit, an input signal is distributed by a directional coupler to a linear signal transfer path and a compressing signal generating path, and in the compressing signal generating path a compressing signal, which keeps the peak-to-average-power ratio of the input signal below a predetermined value, is generated from the input signal. The compressing signal is combined by a power combiner with the input signal having passed through the linear signal transfer path.
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Citations
23 Claims
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1. A signal power dynamic range compressing circuit comprising:
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a directional coupler for distributing an input signal to two paths;
a linear signal transfer path over which to linearly transfer the one distributed input signal;
a compressing signal generating path for generating a compressing signal containing a component opposite in phase to the other distributed input signal; and
a power combiner for power-combining output signals from said linear signal transfer path and said compressing signal generating path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification