Mobile communications
US5960343A · kind A · utility
22Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A slotted wave-guide antenna is attached low on a cellular phone tower. Horizontally polarize radiation in a toroidal pattern from the wave-guide antenna is used to communicate with aircraft. The wave-guide antenna radiation pattern is about 6.degree. thick. An antenna on top of the tower transmits vertically polarized radiation to communicate with automobiles and pedestrians.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.