Title :
2.14/3.5 GHz novel dual-band negative group delay circuit design based on composite right/left handed transmission line
Author :
Choi, Heungjae ; Shim, Sungun ; Jeong, Yongchae ; Lim, Jongsik ; Kim, Chul Dong ; Eom, Soon-Young ; Jung, Young-Bae
Author_Institution :
Dept. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
This paper proposes a novel design and implementation of a dual-band negative group delay circuit (NGDC) using composite right/left handed (CRLH) transmission line. CRLH λ/4 short stubs and a broadband 3dB 90° hybrid coupler are employed to obtain simultaneously the negative group delay (NGD) condition at two separate bands. The proposed design methodology was used to design a dual-band negative group delay circuit for the frequency bands at 2.14 and 3.5 GHz. Measured group delays were about -7.2 and -6.5 ns at two operational frequencies.
Keywords :
delay circuits; metamaterials; composite right/left handed transmission line; dual-band negative group delay circuit design; frequency 2.14 GHz; frequency 3.5 GHz; Broadband amplifiers; Couplers; Delay; Dual band; Microwave circuits;
Conference_Titel :
Microwave Conference (EuMC), 2010 European
Conference_Location :
Paris
Print_ISBN :
978-1-4244-7232-1