Multi-band MIMO antenna
US9231301B2 · kind B2 · utility
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2References
6Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-band antenna system for MIMO applications is adapted to provide high isolation between antennas across a wide range of frequencies. Multiple Isolated Magnetic Dipole (IMD) antennas are co-located and connected with a feed network that can include switches that adjust phase length for transmission lines connecting the antennas. Filtering is integrated into the feed network to improve rejection of unwanted frequencies. Filtering can also be implemented on the antenna structure. Either one or multi-port antennas can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.