Title :
An Active Resonator Using Defected Ground Structure with Islands
Author :
Hwang, Mun-Su ; Oh, Seongmin ; Koo, Jae-Jin ; Park, Chunseon ; Lim, Jongsik ; Jeong, Yongchae ; Choi, Kwan-Sun ; Ahn, Dal
Author_Institution :
Dept. of Electr. & Commun. Syst. Eng., Soonchunhyang Univ., Asan
Abstract :
A new resonator using active device and defected ground structure with islands (DGSI) is proposed. The active device is used for supplying the negative resistance which is one of key factors of the proposed active resonator. The negative resistance is realized by the series active device. The electrical characteristics of the proposed resonator with DGSI are improved by combining the negative resistance and the microstrip line with DGSI where the electric field is the most strong. It is shown that the measured improvement in S21 and Sll of the proposed active resonator with DGSI are 4.55 dB and 0.32 dB, respectively, at the resonant frequency compared to the previous DGSI resonator without active device.
Keywords :
negative resistance circuits; resonators; active resonator; defected ground structure with islands; electric field; microstrip line; negative resistance; Electric resistance; Electrical resistance measurement; Equivalent circuits; FETs; Feedback circuits; Frequency measurement; Microstrip resonators; RLC circuits; Resonant frequency; Systems engineering and theory; DGS; DGSI; active resonator; component; defected ground structure; resonator;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554697
