SiGe up/down converters head to IMS 2016

13th May 2016

Mick Elliott

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A trio of companies - Richardson RFPD, Analog Devices and New Edge Signal Solutions – have combined to develop digital front-end (DFE) radio solutions, including new wideband (6-24 GHz) SiGe up/down converters (ADRF6780, ADRF6880) and transceivers. They will demonstrate the solutions at the 2016 IEEE International Microwave Symposium (IMS) in San Francisco (May 24-26).

The ADRF6780 and ADRF6880 enable simpler system architecture, especially for customers seeking to cover multiple bands from 6–24 GHz, by replacing narrow-band devices, using fewer components, offering higher system reliability, and using less board space.

The reference platform combines baseband processing with RF circuitry to realize a digital microwave radio that enables a wide variety of applications covering 6-24 GHz.

The initial system demonstrates an ADI agile RF transceiver in image rejection mode to up-convert the transceiver output to 6-9 GHz, while an FPGA board generates digital I/Q and waveforms.

Also being showcased by Richardson RFPD at the event is a new wideband (1.8-2.7GHz) Software Defined Radio (SDR)/microcell featuring envelope tracking RF power amplifier.

The digital radio solution demonstrates the AD9361 RF transceiver with a 7W, wideband GaN on SiC RF power amplifier.

High linearity and efficiency is achieved through the use of envelope tracking (ET), while signal generation and control of the ET modulator are handled by the field-programmable gate array FPGA.