By Topic

0.8-5.2GHz band SiGe-MMIC Q-MOD for multi-band multi-mode direct conversion transmitters

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

6 Author(s)
Suematsu, N. ; Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan ; Kageyama, C. ; Kensuke Nakajima, ; Tsutsumi, K.
more authors

In order to realize multiband multimode transmitters for the 4th generation mobile communication systems based on software define radio (SDR) technology, 0.8-5.2GHz broad-band direct conversion quadrature modulator (Q-MOD) has been fabricated in 0.35μm SiGe BiCMOS process. The circuit combination of a static frequency divider and a poly phase filter (PPF) enables higher 90degree phase accuracy than that of the static frequency divider alone. By employing this 90 degree power divider, the fabricated Q-MOD achieves EVM of 4.0/3.1% rms at 0.8/2.1GHz W-CDMA transmission and 2.5% rms at 5.2GHz wireless-LAN (IEEE 802.11a) transmission.

Published in:

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings  (Volume:3 )

Date of Conference:

4-7 Dec. 2005