H - Electricity – 01 – P
Patent
H - Electricity
01
P
H01P 1/203 (2006.01)
Patent
CA 2332757
A bandpass planar filter (110) comprises a signal input and a signal output (116), and one or more resonator elements (112, 114) coupled serially end-to-end between the input and the output across gaps (118) that separate the elements from the input, the output, and from each other. The resonator elements form a serpentine shape such that at least two portions of the serpentine shape are positioned side-by-side parallel to each other separated by a spacing (120). The side-by-side portions effect additional coupling between the resonator elements that forms a notch (transmission zero) (204) in the passband (200) of the filter. The input, output, and resonator elements are etched into one surface (106) of a PC board (102); the other surface (104) of the PC board forms a ground plane of the filter, and the substrate (103) of the PC board forms a dielectric of the filter.
Barnett Ron
Low Yee Leng
Ma Zhengxiang
Tai King Lien
Wu Hui
Avaya Technology Corp.
Barnett Ron
Kirby Eades Gale Baker
Low Yee Leng
Ma Zhengxiang
LandOfFree
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