Title :
Design of tunable negative group delay circuit for communication systems
Author :
Junhyung Jeong ; Sungdoo Park ; Chaudhary, Geetika ; Yongchae Jeong
Author_Institution :
IT Convergence Res. Center, Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
In this paper, a design of tunable microstrip transmission line negative group delay circuit (NGDC) using p-i-n diodes is proposed. The design was based on reflective parallel R-L-C circuit and group delay (GD) can be varied with help of variable resistance. To get the variable resistance, the transmission line (TL) terminated with p-i-n diode is used. The GD is varied with help of bias voltages of p-i-n diodes. Both design equations and design procedures are presented. The measured GD time variation range is 0 ~ -20 ns and well agreed with simulation results.
Keywords :
RLC circuits; delay circuits; microstrip circuits; p-i-n diodes; radiocommunication; communication systems; p-i-n diodes; reflective parallel RLC circuit; tunable microstrip transmission line; tunable negative group delay circuit; variable resistance; Delay; Insertion loss; Loss measurement; P-i-n diodes; Power transmission lines; Resistors; Transmission line measurements; negative group delay; p-i-n diodes; transmission line;
Conference_Titel :
Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2303-1
DOI :
10.1109/RFIT.2012.6401613
