Details

Autor(en) / Beteiligte

• Laughlin, Leo
• Zhang, Chunqing
• Beach, Mark A.
• Morris, Kevin A.
• Haine, John L.
• Khan, Muhammad Kalimuddin

Titel

A 700-950 MHz Tunable Frequency Division Duplex Transceiver Combining Passive and Active Self-interference Cancellation

Ist Teil von

• 2018 IEEE/MTT-S International Microwave Symposium - IMS, 2018, p.1207-1210

Ort / Verlag

IEEE

Erscheinungsjahr

2018

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• This paper presents a novel tunable FDD transceiver architecture which uses an electrical balance duplexer (EBD) to isolate Tx noise in the Rx band, and combines this with active self-interference cancellation to suppress the Tx blocker. This overcomes the limited isolation bandwidth of EBDs, shifting complexity from the RF domain to the digital baseband domain in order to provide isolation in both bands. A discrete hardware prototype has shown promising results and demonstrated the viability of this architecture, achieving 6.0-7.4 dB antenna referred noise figure in a 20 MHz downlink bandwidth, in the presence of a +27 dBm Tx blocker, across a range of duplex configurations in the 700-950 MHz range.