Feed networks for self-interference cancellation
US10833724B1 · kind B1 · utility
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5References
20Claims
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Key dates
| Filing date | Apr 15, 2020 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0278
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Feed networks and methods of using the same to achieve high levels of self-interference cancellation (SIC) in Simultaneous Transmit and Receive (STAR) systems are provided. SIC at the antenna feed network alone can be as high as 100 dB. This can be done by employing entirely low-cost, low-profile passive circuits. The feed network creates a perfect anti-phase path that cancels the high power self-interference signal at the receive port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.