TY - GEN
T1 - A tunable non-foster t-network loaded transmission line using distributed amplifier-based reconfigurable negative group delay circuit
AU - Zhu, Minning
AU - Wu, Chung Tse Michael
N1 - Publisher Copyright:
© 2018 IEICE
PY - 2018/7/2
Y1 - 2018/7/2
N2 - A novel tunable non-Foster T-network loaded with transmission lines (TLs) using a two-stage distributed amplifier (DA)-based negative group delay (NGD) circuit is proposed. The tunability comes from the NGD response synthesized by adjusting the ratio of the transconductance of the transistors, and the varactors at both the input and output port. Due to the distributed topology, the proposed T-network not only works within a relatively broad band (several hundreds of Mega-Hertz), but also has good input and output matching characteristics. A prototype of the proposed non-Forster T-network is built and tested. By properly amending the in-band magnitude and phase characteristics, the NGD circuit can realize the targeted non-Foster T-network with unconditional stability. The experimental results show that the tunable equivalent T-network has a 0 pF to - 1.5 pF shunt capacitance and a 0 nH to -1.875 nH inductance.
AB - A novel tunable non-Foster T-network loaded with transmission lines (TLs) using a two-stage distributed amplifier (DA)-based negative group delay (NGD) circuit is proposed. The tunability comes from the NGD response synthesized by adjusting the ratio of the transconductance of the transistors, and the varactors at both the input and output port. Due to the distributed topology, the proposed T-network not only works within a relatively broad band (several hundreds of Mega-Hertz), but also has good input and output matching characteristics. A prototype of the proposed non-Forster T-network is built and tested. By properly amending the in-band magnitude and phase characteristics, the NGD circuit can realize the targeted non-Foster T-network with unconditional stability. The experimental results show that the tunable equivalent T-network has a 0 pF to - 1.5 pF shunt capacitance and a 0 nH to -1.875 nH inductance.
KW - Distributed amplifier
KW - Negaive capacitor
KW - Negative group delay
KW - Negative inductor
KW - Non-Foster elements
UR - http://www.scopus.com/inward/record.url?scp=85061828991&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061828991&partnerID=8YFLogxK
U2 - 10.23919/APMC.2018.8617553
DO - 10.23919/APMC.2018.8617553
M3 - Conference contribution
AN - SCOPUS:85061828991
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 720
EP - 722
BT - 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th Asia-Pacific Microwave Conference, APMC 2018
Y2 - 6 November 2018 through 9 November 2018
ER -