Ceramic filter with integrated harmonic response suppression using orthogonally oriented low-pass filter
Patent 5929721 Issued on July 27, 1999. Estimated Expiration Date: 
August 6, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 6, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMonolithic ceramic filter with bandstop function Ceramic filter having integral phase shifting network Duplexer filter having harmonic rejection to control flyback Multi-frequency ceramic block filter with resonators in different planes Patent #: 5731746 InventorsApplicationNo. 692547 filed on 08/06/1996US Classes:333/134, Utilizing long line element333/202, Wave filters including long line elements333/206CoaxialExaminersPrimary: Lee, BennyAttorney, Agent or FirmForeign Patent References
International ClassesH01P 001/213H01P 001/201 AbstractA ceramic filter (100) with integrated harmonic response suppression has a ceramic monolithic block filter having a predetermined passband defined by tuned resonators located between an input and an output (116); and at least one of a harmonic trap filter, a lowpass filter and a lowpass microstrip filter, each having an inductive and a capacitive component. This is achievable with a design which incorporates an integrated harmonic response suppression filter directly in or on the dielectric ceramic monolithic block. This can result in a substantial savings in space, cost, and part count in an electronic telecommunications device. | |
