Apparatus and method for attenuating a multicarrier input signal of a linear device
First Claim
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1. A method for attenuating a multicarrier input signal of a linear device, said method comprising the steps of:
- measuring a peak power of said multicarrier input signal;
comparing said peak power to a plurality of thresholds; and
attenuating said input signal by an amount relating to a number of said plurality of thresholds exceeded if said peak power exceeds one or more of said plurality of thresholds.
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Abstract
The apparatus first measures the peak power of a multichannel signal, or representation thereof. The peak power is compared with one or more peak power threshold values. If the measured peak power exceeds a threshold value, the multichannel signal is attenuated prior to being processed by the linear power amplifier.
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Citations
2 Claims
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1. A method for attenuating a multicarrier input signal of a linear device, said method comprising the steps of:
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measuring a peak power of said multicarrier input signal; comparing said peak power to a plurality of thresholds; and attenuating said input signal by an amount relating to a number of said plurality of thresholds exceeded if said peak power exceeds one or more of said plurality of thresholds.
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2. A method for attenuating a multicarrier input signal of a linear power amplifier comprising the steps of:
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monitoring said multicarrier signal to produce a representative multicarrier signal; measuring a peak power of said representative multicarrier signal; comparing said peak power to a first preset threshold; attenuating said input signal by a first amount if said peak power exceeds said first preset threshold; comparing said peak power to a second preset threshold; and attenuating said input signal by a second amount if said peak power exceeds said first preset threshold.
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Specification