Antenna apparatus for transmitting and receiving radio waves to and from a satellite
US6839039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Feb 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A high-performance and compact antenna apparatus is provided which is capable of obtaining a high antenna gain, less susceptible to wind and the like, and advantageously useful as mounted on vehicles or the like. The antenna apparatus includes: a transmitting antenna section 2 having at least one planar antenna element for transmitting a radio wave to a satellite; a receiving antenna section 3 having at least one planar antenna element for receiving a radio wave from the satellite, the transmitting antenna section 2 and the receiving antenna section 3 being positioned to orient to a predetermined satellite and arranged stepwise with a predetermined spacing therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.