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

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APMC.2007.4554697

Filename

4554697