Low passive intermodulation distributed antenna system for multiple-input multiple-output systems and methods of use
US9722308B2 · kind B2 · utility
3Cited by
423References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 28, 2014 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Feb 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Low passive intermodulation (PIM) antenna assemblies and methods for utilizing the same. In one embodiment, the low PIM antenna assemblies described herein offer the lowest PIM level for the DAS antenna as compared with current PIM solutions currently available in the market place as well as the improvement of isolation between the radiating elements using inserted isolation rings as well as a more omni-directional radiation pattern using the insertion of slots into the radiating elements themselves. Methods of manufacturing and using the aforementioned low PIM antenna assembly are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.