Antenna unit
US7176839B2 · kind B2 · utility
2Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This antenna unit is adapted to be connected to an electronic device for transmitting a received radio signal to the electronic device. The antenna unit comprises a noise canceller for canceling noise generated in the electronic device and transmitted to the antenna unit through a ground line. The noise canceller is a conductive stub piece one end of which is electrically connected to an electromagnetic shield of the antenna unit and the other end of which is a free end. The stub piece has a length of about ¼ of a wavelength of the radio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.