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APN1009: A varactor-controlled phase shifter for PCS base station applications
Author:Skyworks Solutions Inc.

Power amplifiers in today's base stations use compensation techniques to reduce distortion. There are many well-known compensation techniques available, all relying on similar principles of phase and amplitude control. Thus, most (and possibly all) of the compensation techniques use the same control components: voltage-controlled attenuators and voltage-controlled phase shifters.

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