MaxLinear Microwave Transceiver SoC Powers Microwave Radio Platform with Adaptive Dual Carrier Operation

Aviat Networks has selected MaxLinear’s MxL11xx CMOS Transceiver to enable channel aggregation functionality on its new line of WTM 4000 Microwave Radios. The WTM 4000 is an ultra high capacity, all-outdoor microwave radio. Tier-1 carriers at the upcoming Mobile World Congress 2018 event will be among the first to get a demonstration of the new capability.

Aviat is a global provider of microwave networking products and services to mobile service providers, government agencies, energy and transportation companies and enterprises. The WTM 4000 is the industry’s highest capacity microwave radio platform and features the highest capacity in single transceiver radio. The adaptive dual carrier (A2C) feature enables two RF channels over a single transceiver, doubling the capacity of a single-header radio.

The MaxLinear MxL11xx is an all-CMOS, single-chip broadband microwave transceiver product family that can support operation of all licensed and unlicensed bands from 5 GHz to 45 GHz, including all ETSI-defined channel spacing options from 5 MHz to 224 MHz. Single- or dual-channel operational modes are available.

The comprehensive frequency support of the MxL11xx greatly reduces the number of product configurations that Aviat must develop. The high level of integration also greatly minimizes external bill of material content, while supporting advanced features like digital pre-distortion, and channel aggregation and calibration. The channel aggregation feature is ideal for 5G backhaul applications, doubling the available capacity on a single backhaul link. For Aviat, the comprehensive transceiver functionality of the MxL11xx together with its software and systems expertise enables them to provide customers with a highly-differentiated microwave solution. A2C operation with a single transceiver offers an attractive combination of maximal bandwidth throughput, low latency and smaller form factor.

The MxL11xx features built-in Full Spectrum Capture (FSC) technology and supports channel aggregation mode, enabling a second channel with any channel spacing to be processed within the same IC. It incorporates a full receive, transmit, feedback path, and all synthesizer components on a single chip, and can support code rates up to 4096 QAM. The closed-loop digital pre-distortion provides power amplifier (PA) linearization for a wide variety of PAs.