Multi-band antenna for use in a portable telecommunications apparatus
US6504511B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-band antenna for use in a portable telecommunication apparatus has a pattern of thin conductive material and is adapted to operate in at least two, preferably at least three, frequency bands, such as 900 MHz, 1800 MHz and 1900 MHz. A first portion of conductive material has a first end, which is connected to radio circuitry in the portable telecommunication apparatus. It also has a second end. A second portion of conductive material has a first end, which in connected to the second end of the first portion. The second portion has a non-linear extension and is narrower than the first portion. A third portion of conductive material is connected to the second portion. The third portion is wider than the second portion and provides capacitive loading of the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.