Resonator, printed board, and method for measuring complex dielectric constant
US7952365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2006 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Jan 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10068
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of through-hole vias connected to conductor layers is disposed with gaps left between these vias around opening parts disposed in the conductor layers in a printed board in which these conductor layers are disposed parallel to each other so as to sandwich a dielectric layer in between. Furthermore, through-hole vias used for excitation are disposed in the opening parts of the conductor layers and regions of the dielectric layer matching these opening parts in a non-contact manner with the conductor layers. When the complex dielectric constant is measured, a high-frequency power is applied to the through-hole vias, and the power loss between the through-hole vias and the conductor layers is measured by the S parameter method. As a result, the complex dielectric constant and the frequency dependency of this complex dielectric constant can be measured with a high precision in a frequency range extending from several gigahertzes to 20 GHz, and there is no electrical interference with other parts even when this resonator is mounted on a board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.