Title :
Design of A Vertically Stacked Substrate Integrated Folded-Waveguide Resonator Filter in LTCC
Author :
Chien, Hung-Yi ; Shen, Tze-Min ; Hung, Ting-Yi ; Wu, Ruey-Beei
Author_Institution :
Dept. of Electr. Eng. & Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei
Abstract :
This paper proposes a vertically stacked substrate integrated folded-waveguide (SIFW) filter in a multilayer low- temperature cofired ceramic (LTCC) structure. The folded waveguide resonators are used to miniaturize the circuit size. The vertical metal walls of the resonators are realized by closely spaced metal filled vias. A four-pole Chebyshev waveguide filter has been designed and fabricated. From the result, the footprint of the filter can be reduced to 26.3% as compare to a conventional planar direct-coupled waveguide filter.
Keywords :
Chebyshev filters; resonator filters; waveguide filters; LTCC; closely spaced metal filled vias; four-pole Chebyshev waveguide filter; multilayer low-temperature cofired ceramic structure; planar direct-coupled waveguide filter; substrate integrated folded-waveguide resonator filter; vertical metal walls; vertically stacked filter; Band pass filters; Ceramics; Chebyshev approximation; Circuits; Couplings; Magnetic separation; Microwave filters; Millimeter wave technology; Nonhomogeneous media; Resonator filters;
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.2007.4554869