Title :
Dual-mode Folded Substrate Integrated Waveguide (FSIW) filters with LTCC technology
Author :
Zhang, Runqi ; Wang, Zhigang ; Yan, Bo
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, a new kind of dual-mode Folded Substrate Integrated Waveguide (FSIW) filters in K-band with Low-Temperature Co-fired Ceramics (LTCC) technology is proposed. Dual-mode FSIW filter of single resonant cavity is designed to degenerate two modes: folded TE201 and TE102, which results in two transmission zeros on each side of the pass-band. To further validate its characteristics, a dual-mode working FSIW filter of two resonant cavities is proposed. In order to degenerate two modes, the I/O structures of these two filters are designed by an open microstrip line coupling through a rectangular slot on the ground plane.
Keywords :
band-pass filters; cavity resonators; ceramic packaging; microwave filters; poles and zeros; rectangular waveguides; waveguide filters; I-O structures; LTCC technology; dual-mode folded substrate integrated waveguide; dual-mode working FSIW filter; low-temperature cofired ceramics; microstrip line coupling; rectangular slot; single resonant cavity; transmission zeros; Circuit simulation; Coupling circuits; Equivalent circuits; Filtering theory; Filters; Frequency; K-band; Magnetic separation; Microstrip; Resonance;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5524943
