Modeling of the seven-terminal transformer implemented in the LTGC-QO

Authors

  • Minglin Ma Xiangtan University, China; University of Hertfordshire, United Kingdom https://orcid.org/0000-0003-4599-8479
  • Yuan Chen Xiangtan University, China
  • Xiangliang Jin Xiangtan University; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, China
  • Zhijun Li Xiangtan University, China
  • Chengwei Li Xiangtan University, China
  • Xue Zhang Xiangtan University, China

DOI:

https://doi.org/10.3103/S0735272716050022

Keywords:

low cost device, transformer-based device, oscillator, quadrature oscillator

Abstract

In this paper a seven-terminal transformer has been designed. We have suggested its equivalent-circuit model. This transformer has a primary coil with a center tap and two secondary coils. Based on this transformer, a low-cost transformer-based gate-coupled quadrature oscillator (LTGC-QO) using 0.18 μm CMOS technology has been developed. The LTGC-QO consumes 7 mW at 1 V power supply. The simulated phase noise at 1 MHz offset is –116.3 dBc/Hz. The chip area is 400×500 mm.

Author Biography

Minglin Ma, Xiangtan University, China; University of Hertfordshire

(2016) Xiangtan University; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, China

References

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Published

2016-05-21

Issue

Vol. 59 No. 5 (2016)

Section

Research Articles