基于磁耦合谐振腔的可重构宽带匹配电路OA北大核心CSTPCD

In order to reduce the adverse effects of non-ideal factors such as process fluctuations,layout second-order effects and model deviations on the performance of radio frequency integrated circuit(RFIC),a reconfigurable wideband matching network based on a magnetically coupled resonator tank(MCR-RWM)is proposed.By configuring adjustable resistor arrays and adjustable capacitor arrays through a digital control circuit,parameters such as gain,bandwidth,gain flatness,and ripple of the matching network can be changed to achieve wideband matching network reconfiguration.In 65 nm complementary metal oxide semiconductor(CMOS)process,a driver amplifier based on the MCR-RWM is designed and integrated into a receiver.The measurement results of the receiver show that in 18.2～20.2 GHz by configuring the wideband matching network of the driver amplifier through the digital control circuit,the S22 can be improved by 3.5 dB,the S21 can be improved by 0.5 dB,the gain flatness can be improved by 0.1 dB,and the-3 dB bandwidth can be improved by 113 MHz.