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A BiCMOS single ended multiband RF-amplifier and mixer with DC-offset and second order distortion suppression

In English

Författare

  • TOBIAS TIRED

Summary, in English

Direct conversion receivers are widely used for full duplex mobile radio communication systems. This paper describes a novel SAW-less single-ended RF amplifier connected to a single-ended mixer with a feedback loop that suppresses the second-order distortion from TX cross modulation of the LO-leakage as well as DC-offset at the mixer output. In Monte Carlo simulations the design achieves +47 dBm minimum IIP2 with 32 dB conversion voltage gain. The advantage with the proposed architecture is that it is fully single-ended. Especially in multiband integrated radios this is highly desirable since the pin-count for the LNAs is reduced by half. The PCB routing of the RF input signal is simplified. The design requires two off-chip filter capacitors of non critical value intended to be placed on the laminate inside the package.

Publiceringsår

2011-09-01

Språk

Engelska

Sidor

269-283

Publikation/Tidskrift/Serie

Analog Integrated Circuits and Signal Processing

Volym

68

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • BiCMOS, multiband, mixer, second order distortion

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0925-1030