Low frequency noise optimization in Gilbert-cell-based mixers for direct conversion (zero-IF) receivers

✍ Scribed by U. Alvarado; R. Berenguer; I. Adín; J. Meléndez; J. Legarda; G. Bistué

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 228 KB
• Volume: 50
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.23940

✦ Synopsis

Abstract

This letter analyses the low frequency noise performance in Gilbert‐cell‐based zero‐IF mixers. Several issues for optimizing the flicker noise performance while keeping a good mixer performance in terms of gain, noise figure, and power consumption are introduced in a quantitative manner. A CMOS zero‐IF mixer has been fabricated and measured. A flicker noise reduction up to 10.4 dB is achieved at 10 kHz with a power consumption of only 5.4 mW. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3128–3131, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23940