摘要
A novel transformer-based differential frequency doubler operating in mm-Wave range is presented in this paper. The differential output signal is generated by the second harmonic of the nonlinear push-push pairs. In order to enhance the symmetry of the high frequency differential output, a stacked transformer implemented by the top two metal layers in 90-nm CMOS process is used as the loads in the proposed frequency doubler. Simulation results show that the proposed circuit has achieved less than phase mismatch and 0.6-dB amplitude mismatch operating at 60-GHz.
- 出版日期2014-6
- 单位清华大学