Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Low-Power 2.4 GHz CMOS RF Front-End with Temperature Compensation

  • Kwon, Yong-Il (SAMSUNG Electro-Mechanics, Central R&D Institute) ;
  • Jung, Sang-Woon (Department of Electronics Engineering, Ajou University) ;
  • Lee, Hai-Young (Department of Electronics Engineering, Ajou University)
  • Published : 2007.09.30
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Abstract

In this paper, a low-power 2.4 GHz front-end for sensor network application (IEEE 802.15.4 LR-WPAN) is designed in a 0.18 um CMOS process. A power supply circuit with a novel temperature-compensation scheme is presented. The simulation and measurement results show that the front-end (LNA, Mixer) can achieve a voltage gain of 35.3 dB and a noise figure(NF) of 3.1 dB while consuming 5.04 mW (LNA: 2.16 mW, Mixer: 2.88 mW) of power at $27^{\circ}C$. The NF includes the loss of BALUN and BPF. The low-IF architecture is used. The voltage gain, noise figure and third-order intercept point (IIP3) variations over -45$^{\circ}C$ to 85$^{\circ}C$ are less than 0.2 dB, 0.25 dB and 1.5 dB, respectively.

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References

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