Cylindrical antenna having means for generating a magnetic field in a vicinity of the antenna
US5818173A · kind A · utility
3Cited by
8References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a microwave antenna having at least one tubular portion with a central axis, and magnets which are located within the tubular portion along the central axis. The magnets generate a magnetic field in the vicinity of the antenna, with each end of each magnet facing an end having the same polarity of an immediately adjacent magnet. This type of antenna is used in the manufacture of microtips on large surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.