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A 1.2 volt 1.8GHz CMOS quadrature front-end

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3 Author(s)
Tillman, F. ; Dept. of Electroscience, Lund Univ., Sweden ; Troedsson, N. ; Sjland, H.

A fully integrated 1.2V 0.25 μm CMOS quadrature frontend for a low or zero IF receiver has been designed and measured. The front-end consists of a common-gate LNA, a quadrature passive mixer, and a quadrature VCO operating at 1.8GHz. The conversion gain is 16dB, the noise figure is 6dB, the CP1 is -18dBm, the IIP2 is 27dBm, and the IIP3 is -6dBm. The total power consumption is 9.6mW and the IF quadrature phase error is below 1.8 degrees over the complete RF bandwidth of 160MHz.

Published in:

VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on

Date of Conference:

17-19 June 2004

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