A new DGS resonator and its application to bandpass filter design

• Published in: 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) Vol. 3; pp. 1605 - 1608 Vol.3
• Main Authors: YOON, Jang-Sik, KIM, Jun-Goo, PARK, Jun-Seok, PARK, Choen-Seok, LIM, Jae-Bong, CHO, Hong-Gu, KANG, Kwang-Yong
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Acoustic wave devices, piezoelectric and piezoresistive devices; Applied sciences; Band pass filters; Capacitance; Circuit properties; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Equivalent circuits; Exact sciences and technology; Film bulk acoustic resonators; Frequency filters; Inductance; Microstrip filters; Microstrip resonators; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; Oscillators, resonators, synthetizers; Resonance; Resonant frequency; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Surface acoustic waves; Acoustic wave resonator; Series parallel connection; Bulk acoustic wave devices; Band pass filter; Microstrip resonator; Piezoelectric thin films; Implementation; Periodic structure; Surface acoustic wave resonators
• ISBN: 0780383311; 9780780383319
• ISSN: 0149-645X; 2576-7216
• DOI: 10.1109/MWSYM.2004.1338889

In this paper, we proposed a DGS (defected ground structure) microstrip resonator. The proposed DGS resonator has the resonant and anti-resonant characteristic that is very similar to those of a SAW resonator of a FBAR. In order to confirm the validity of the proposed resonator, we designed and implemented bandpass filters by using series and parallel resonators.