Filter using multilayer ceramic technology and structure thereof
US7012484B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 2004 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Apr 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2001/0085
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a filter using multilayer ceramic technology. The filter comprises an input port, an output port, a first lumped resonator and a first step-impedance resonator connected to the input port, a second lumped resonator and a second step-impedance resonator connected to the output port, a coupling capacitor used for the coupling of the first lumped resonator and the first step-impedance resonator to the second lumped resonator and the second step-impedance resonator. The filter according to the present invention can provide the multi-transmission zeros in the stopband to isolate the adjacent channel and suppress the harmonics, and provide the transmission poles in the passband to have lower insertion loss. In addition, a manufacturing method for the filter using multilayer ceramic technology is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.