Design of Cartesian Feedback RF Power Amplifier for L-Band Frequency Range

doi:10.2528/PIERB07111901

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Progress In Electromagnetics Research B	ISSN: 1937-6472

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DESIGN OF CARTESIAN FEEDBACK RF POWER AMPLIFIER FOR L-BAND FREQUENCY RANGE

By J. S. Mandeep, A. Lokesh, S. I. S. Hassan, m. n. Mahmud, and M. F. Ain

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Abstract:
A phase-alignment system is used fully integrate a power amplifier, Cartesian feedback linearization circuitry, and a phasealignment system. The phase-alignment system employs a new technique for offset-free analog multiplication that enables it to function without manual trimming. This paper demonstrates how the phase-alignment system improves the stability margins of the fully integrated Cartesian feedback system. The power amplifier itself, integrated on the same die, operates at 1 GHz and delivers a maximum of 30 dBm of output power into a 50-load. The class AB design for open loop and close loop power amplifier with Cartesian feedback, demonstrated a good linearity of 50 dBc and 80 dBc, respectively. The operating power is 2 W at 1000 MHz frequency.

Citation:
J. S. Mandeep, A. Lokesh, S. I. S. Hassan, m. n. Mahmud, and M. F. Ain, "Design of cartesian feedback RF power amplifier for l-band frequency range," Progress In Electromagnetics Research B, Vol. 2, 207-222, 2008.
doi:10.2528/PIERB07111901
http://www.jpier.org/pierb/pier.php?paper=07111901

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