This paper presents a quadrature balanced RF Front-End transceiver architecture and a digital self-interference cancellation (SIC) algorithm for simultaneous transmit-receive (Tx-Rx) in next generation half-duplex and full-duplex radios. Tx-Rx isolation of >57dB is measured for CW signals over 80MHz BW, and >40dB for an actual 80MHz 802.11ac OFDM signal within the 2.4GHz Wi-Fi band, along with EVM of -37dB of the Tx signal for a concurrent Tx-SIC operation.
Articles
Related Articles
May 18, 2021
The Role of Impedance Transparency of Non-Reciprocal 90° Phase Shifters in the Evolution of Electronic Circulators
This paper presents an impedance transparency property for 90°/-90° non-reciprocal phase shifter (NRPS) circuits which is...
Read More >
1 MIN READING
July 31, 2019
AM-PM: Efficient Network Telemetry using Alternate Marking
The fast evolution of high-speed networks has raised the need for accurate and scalable network measurement....
Read More >
1 MIN READING
August 1, 2017
Fiber-based architecture for NFV cloud databases
The telco industry is gradually shifting from using monolithic software packages deployed on custom hardware to...
Read More >
1 MIN READING