A negative group delay tuner with stable insertion loss

@article{Wu2017ANG,
  title={A negative group delay tuner with stable insertion loss},
  author={Lin-Sheng Wu and Liang-Feng Qiu and Junfa Mao},
  journal={2017 IEEE MTT-S International Microwave Symposium (IMS)},
  year={2017},
  pages={473-475}
}
A new method is proposed for tunable negative group delay (NGD) circuit in this paper. The tuner is based on a transmission line resonator loaded on a λ/4 stub, and a lumped resistor and two varactors are mounted on it. By properly biasing the two varactors, the susceptance slope parameter and unloaded Q-factor are significantly tuned while the resonant… CONTINUE READING