By Topic

A Balanced Sub-Harmonic Mixer for multi-OFDM Ultra Wide Band 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
$33 $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

4 Author(s)
I. Magrini ; Dept. of Electronics and Telecommunications, University of Florence, V.S. Marta, 3, I-50139 Firenze ¿ Italy ; E. Arzilli ; A. Cidronali ; G. Manes

In this paper a single balanced sub-harmonic mixer, suitable for direct-conversion IEEE 802.15.3a ultra wide band transmitter, is introduced, fabricated and tested. The circuit, which consists of two pairs of anti-parallel diodes connected by a wideband balun and proper frequency terminations, is optimized for direct up-conversion in the 3.1-4.8 GHz band. The prototype was realized by means of hybrid technology, surface mount packaged Schottky diodes and passive components. The measurements highlight a conversion loss ranging from 12 dB to 15 dB and an in-band second LO harmonics in the range of 48 dB to 57 dB. The proposed passive mixer optimum functionality is achieved with a LO power of 7 dBm. Finally, the prototype response was shaped by a microstrip multisections coupled-lines band pass filter, designed to operate as output spectrum shaping. The system level considerations demonstrated the suitability of the proposed circuit topology for UWB MBOA applications

Published in:

2006 European Microwave Conference

Date of Conference:

10-15 Sept. 2006