By Topic

Analysis of Direct-Conversion IQ Transmitters With 25% Duty-Cycle Passive Mixers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Mirzaei, A. ; Broadcom Corp., Irvine, CA, USA ; Murphy, D. ; Darabi, H.

The performance of direct-conversion IQ transmitters with 25% duty-cycle passive mixers is analyzed. The up-conversion transfer function is calculated and it is shown that due to lack of reverse isolation of the passive mixer, the high- and low-side conversion gains can be different. The contribution of thermal noise from mixer switches to the total output noise of the transmitter is formulated. It is also revealed that the up-conversion of the baseband signal to higher order harmonics places more stringent linearity requirements on the post-mixer driver.

Published in:

Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:58 ,  Issue: 10 )