A low power consumption and wide-band input matching CMOS active balun for UWB system applications

J. Y. Li, W. J. Lin, M. P. Houng, L. S. Chen

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

This work presents an ultra-wideband (UWB) active balun (balanced-to-unbalanced) with current-reused technique for wideband input matching and low power consumption by using standard 0.18 μm CMOS processes. The proposed circuit, using parallel common gate and common source structure, can efficiently improve the input-matching bandwidth for up to 10 GHz. Besides, the proposed circuit has good gain imbalance and phase imbalance from 3.1 GHz to 10.6 GHz. The proposed active balun achieved 4 ± 1 dB gain with amplitude (gain) imbalances less than 0.5 dB, phase differences of 180° ± 2°, 11.7 mW power consumption at 1.8 V supply voltage from 3.1 GHz to 10.6 GHz, and the chip size including pads is 0.76 × 0.73 mm 2.

Original languageEnglish
Pages (from-to)1449-1457
Number of pages9
JournalJournal of Electromagnetic Waves and Applications
Volume24
Issue number11-12
DOIs
Publication statusPublished - 2010 Jul 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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