A 2-GHz fully-differential CMOS power amplifier with virtual grounds to suppress ground bounce
✍ Scribed by Tao Yan; Huailin Liao; Chen Li; Ru Huang
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 357 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This article presents a 2‐GHz fully‐differential CMOS power amplifier (PA) fabricated in a standard 0.35‐μm RF CMOS process. Virtual grounds are introduced at both drive‐stage and output‐stage transistors' sources of the two‐stage differential PA, which guarantees a stable reference ground and thus improves the PA performance. A performance of 15‐dB gain, 26.6 dBm P~out~, and 26% PAE is achieved. At 15 dBm P~out~, the ACPR1 and ACPR2 are −35.3 and −66.3 dBc, respectively. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2780–2784, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22849