This letter deals with a GaAs monolithic microwave integrated circuit (MMIC) Doherty power amplifier (DPA) for X-band systems. To the best of authors’ knowledge, it represents the first DPA realization in the X-band frequency range. Experimental results showed a 30-dBm saturated output power and a drain efficiency greater than 53% at 9.5 GHz. Moreover, in the 6-dB power back-off (from 18 to 24 dBm input power), an amplitude modulation (AM/AM) distortion lower than 1 dB is also demonstrated with an average efficiency greater than 50%.
Colantonio, P., Giannini, F., Giofre', R., Piazzon, L. (2011). Experimental results of an X-Band MMIC doherty power amplifier. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 53(11), 2665-2668 [10.1002/mop.26306].
Experimental results of an X-Band MMIC doherty power amplifier
COLANTONIO, PAOLO;GIANNINI, FRANCO;GIOFRE', ROCCO;PIAZZON, LUCA
2011-11-01
Abstract
This letter deals with a GaAs monolithic microwave integrated circuit (MMIC) Doherty power amplifier (DPA) for X-band systems. To the best of authors’ knowledge, it represents the first DPA realization in the X-band frequency range. Experimental results showed a 30-dBm saturated output power and a drain efficiency greater than 53% at 9.5 GHz. Moreover, in the 6-dB power back-off (from 18 to 24 dBm input power), an amplitude modulation (AM/AM) distortion lower than 1 dB is also demonstrated with an average efficiency greater than 50%.| File | Dimensione | Formato | |
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