Time-division duplex (TDD) antenna system
US11804912B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Apr 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
One example includes a self-synchronizing TDD antenna system. The system includes an antenna system to communicate transmit and receive signals and an antenna control circuit coupled to a user communication system. The antenna control circuit includes a transmission line measurement circuit to determine signal loss through a transmission line cable coupled to the antenna system and an amplitude adjustment circuit to adjust amplitude of the transmit and/or receive signals based on the signal loss. A transmit detection circuit monitors signal power of the transmit signal, and a controller switches the amplitude adjustment circuit from a receive mode to a transmit mode in response to the monitored signal power exceeding a predetermined threshold. In the receive mode, the adjustment circuit applies a receive amplitude adjustment to the receive signal, and in the transmit mode the adjustment circuit applies a transmit amplitude adjustment to the transmit signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.