TY - GEN
T1 - Arbitrary Terminated Coupler with Tunable Negative and Positive Group Delay Responses
AU - Chaudhary, Girdhari
AU - Pech, Phanam
AU - Kim, Phirun
AU - Jeong, Yongchae
N1 - Publisher Copyright:
© 2018 European Microwave Association.
PY - 2018/11/20
Y1 - 2018/11/20
N2 - This paper presents a design of arbitrarily terminated coupler with tunable negative group delay (NGD) response and power division ratio. The proposed coupler provides tunable NGD through port 3 and 1 whereas positive group delay (PGD) through port 2 and 1. The analytical analysis shows that the power division ratio and NGD are controlled by a junction resistance of parasitic compensated PIN diode. Perfect matching and infinite isolation are obtained at the center frequency (pmb{f}-{mathbf{0}}). The proposed coupler is validated by fabricating circuit at pmb{f}-{mathbf{0}}=mathbf{2.14} GHz. Measurement results are well agreed with simulated and predicted results. The experimental results show that NGD is varied from -0.2 to -1.3 ns with NGD fractional bandwidth (bandwidth of mathbf{GD} < mathbf{0}) of 21.14 % to 15.88%.
AB - This paper presents a design of arbitrarily terminated coupler with tunable negative group delay (NGD) response and power division ratio. The proposed coupler provides tunable NGD through port 3 and 1 whereas positive group delay (PGD) through port 2 and 1. The analytical analysis shows that the power division ratio and NGD are controlled by a junction resistance of parasitic compensated PIN diode. Perfect matching and infinite isolation are obtained at the center frequency (pmb{f}-{mathbf{0}}). The proposed coupler is validated by fabricating circuit at pmb{f}-{mathbf{0}}=mathbf{2.14} GHz. Measurement results are well agreed with simulated and predicted results. The experimental results show that NGD is varied from -0.2 to -1.3 ns with NGD fractional bandwidth (bandwidth of mathbf{GD} < mathbf{0}) of 21.14 % to 15.88%.
KW - Arbitrarily terminated coupler
KW - parasitic compensated PIN diode
KW - positive group delay
KW - tunable wideband negative group delay
UR - https://www.scopus.com/pages/publications/85059817729
U2 - 10.23919/EuMC.2018.8541444
DO - 10.23919/EuMC.2018.8541444
M3 - Conference paper
AN - SCOPUS:85059817729
T3 - 2018 48th European Microwave Conference, EuMC 2018
SP - 57
EP - 60
BT - 2018 48th European Microwave Conference, EuMC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 48th European Microwave Conference, EuMC 2018
Y2 - 25 September 2018 through 27 September 2018
ER -