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High power-added efficiency MMIC amplifier for 2.4 GHz wireless communications

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3 Author(s)
J. Portilla ; Dept. de Ingenieria de Commun., Cantabria Univ., Santander, Spain ; H. Garcia ; E. Artal

This work describes the design and the measured performance of a high-efficiency monolithic microwave integrated circuit (MMIC) amplifier for wireless communications in the 2.4 GHz band. The monolithic technology employed in the circuit integration is based on standard 0.5-μm-gate-length MESFET. The design procedure is based on load-cycle graphic optimization of the transistor performance. On-wafer experimental characterization shows output power up to 24 dBm and excellent results of power-added efficiency up to 79% with 19.5 dBm output power at low drain bias voltage. The amplifier performance achieved and the circuit size, which is 1 mm2, are suitable for use in the transmitter chains of wireless communication systems in the 2.4 GHz band

Published in:

IEEE Journal of Solid-State Circuits  (Volume:34 ,  Issue: 1 )