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High-Power Low-Voltage GaAs HBT Amplifiers

Feb. 24, 2022
Two MMIC power amplifiers from CML Microcircuits are two-stage, fully matched MMIC power amplifiers for use in 860 – 960 MHz, license-free bands.

RFMW announces design and sales support for two MMIC power amplifiers from CML Microcircuits. The CMX90A003 and CMX90A004 are two-stage, fully matched MMIC power amplifiers for use in 860 – 960 MHz, license-free bands. Advanced GaAs HBT technology provides a combination of high efficiency (49% PAE) and gain (30 dB). The CMX90A003 is optimized for efficiency at low collector voltages (1.9 - 2.5 V) while delivering 29.5 dBm of saturated power.

Ideal as a booster PA for range extension of low-power transceivers, it’s suitable for systems with supercapacitor backup storage, thus extending the discharge period or battery life. The CMX90A004 is optimized for maximum efficiency at collector voltages of 2.7 - 4.5 V and intended as a final stage amplifier with 32.5 dBm saturated output power.

About the Author

Alix Paultre | Editor-at-Large, Microwaves & RF

Alix is Editor-at-Large for Microwaves & RF

An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the U.S. military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications, most recently as Editor-in-Chief of Power Systems Design.

Alix currently lives in Wiesbaden, Germany.

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