EHF omnidirectional antenna
US5121129A · kind A · utility
147Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1991 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Apr 25, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The EHF omnidirectional antenna system (10) includes a shaped lens (12) that is illuminated by a corrugated horn (14). The lens is disposed in the far-field of the horn and has two shaped surfaces (20 and 30) which together disperse the beam from the horn, such that a nearly uniform coverage over hemispherical coverage area is achieved at a frequency of approximately 44 GHz. The method of making the lens utilizes a surface shaping analysis to develop the shaped surfaces of the lens. A surface matching layer (44) is applied to all surfaces of the lens to reduce surface reflection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.