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A 2‐GHz fully‐differential CMOS power amplifier with virtual grounds to suppress ground bounce
Author(s) -
Yan Tao,
Liao Huailin,
Li Chen,
Huang Ru
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22849
Subject(s) - cmos , amplifier , dbc , electrical engineering , transistor , differential amplifier , engineering , microwave , power (physics) , electronic engineering , differential (mechanical device) , dbm , physics , telecommunications , voltage , quantum mechanics , aerospace engineering
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
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