Carrier aggregation supports an increased total bandwidth, data rate and utilization of available fragmented spectrum, where the latter is a core component of next generation Wi-Fi and Cellular networks, including 5G. Wireless communications receivers with intra-band non-contiguous CA, employing conventional complex mixers and base-band circuitry, are desirable, however risks of VCO injection pulling and LO coupling may hinder adoption of simplistic parallel receive channels. Furthermore, in-band strong blockers are expected in such environment and the CA receiver should be designed to tolerate such signals.
Articles
Related Articles
December 18, 2020
A Multimode 5–6 GHz FD/HD/FDD Quadrature Balanced CMOS Front End With Transmit–Receive Cross-Modulation Distortion Correction
We introduce a multimode and wideband quadrature balanced CMOS RF front end (RFFE) supporting full-duplex (FD),...
Read More >
1 MIN READING
November 13, 2019
A Full-Duplex Quadrature Balanced RF Front End With Digital Pre-PA Self-Interference Cancellation
This article presents a quadrature balanced radio-frequency (RF) front-end transmitter (TX) architecture assisted by a digital...
Read More >
1 MIN READING
November 4, 2019
Pre-PA Delay-Line Based FIR Filter for Self-Interference Cancellation in Full Duplex Wireless Systems
In this paper we propose a pre-PA self-interference (SIC) cancellation FIR filter architecture implemented in a...
Read More >
1 MIN READING