A power control system for a multi-carrier base station transmitter is capable of controlling power levels of individual RF carriers. The power control system has a multi-channel amplification system for converting a plurality of analog input signals into a plurality of amplified carrier signals. The...http://www.google.com.tw/patents/US6662018?utm_source=gb-gplus-share專利 US6662018 - Analog power control system for a multi-carrier transmitter