Small antenna for portable radio phone
US5585807A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1994 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Dec 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/243
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is possible to realize an antenna realizing excellent matching with impedance of an RF part without including a resonant part that accumulates large reactive power in a small volume on a finite ground formed of a body of a portable radio phone by feeding a linear conductor presenting a step structure having a part parallel to the finite ground as an antenna and juxtaposing a linear conductor having a part parallel to another one or plurality of finite grounds in close vicinity to a linear conductor having a step structure on a finite ground in contact or non-contact therewith electrically. Accordingly, it is made possible to provide a small antenna or a built-in antenna applied to a small portable radio phone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.