Ceramic bandstop filter

Details Ceramic bandstop filter Ceramic bandstop filter

H - Electricity

01

P

333/74

H01P 1/202 (2006.01) H01P 1/203 (2006.01) H01P 7/04 (2006.01)

Patent

CA 1186386

Abstract An embodiment of a unique ceramic bandstop filter is comprised of a dielectric plate having an input electrode disposed centrally on the top surface thereof and a dielectric block fixedly attached to the bottom surface of the plate and having a hole opposite the input . electrode. The dielectric material is preferably a ceramic comprised of BaO, TiO2 and ZrO2. The dielectric block is entirely plated with copper or silver except for a portion of the top surface surrounding the hole and is essentially a short-circuited coaxial transmission line. In another embodiment of the unique ceramic bandstop filter, a dielectric block has a hole extending between top and bottom surfaces thereof and an input electrode plated on the top surface near the hole. The dielectric block is entirely plated with copper or silver except for a portion of the top surface surrounding the input electrode and hole. Shunt capacitors or inductors can be plated on the top surface of both embodiments of the unique ceramic bandstop filter for providing a bandstop/bandpass response characteristic.

421660

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