High frequency circuit board and antenna switch module for high frequency using the same
US6862436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/1003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high frequency circuit board comprising: a choke coil circuit element of a high frequency switching circuit; a dielectric laminated structure body comprising a plurality of dielectric layers which comprise a first dielectric layer and a second dielectric layer; a land formed on the first dielectric layer; and a circuit pattern formed on the second dielectric layer, wherein the choke coil circuit element is mounted on the land as a chip inductor, the first dielectric layer is located at the end of the body, the second dielectric layer is located nearest to the first board in at least one of the dielectric layers on which a circuit pattern is formed, and the land is positioned out of a region formed by projecting the circuit pattern formed on the second dielectric layer in the direction of laminating of the plurality of dielectric layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.