Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A 10-GHz Band LC-CMOS QVCO

10 GHz 대역 LC-CMOS QVCO

  • Koo, Kwang-Hoe (Graduate School Dept. of Electronics and Radio Engineering KyungHee University) ;
  • Kim, Chang-Woo (Graduate School Dept. of Electronics and Radio Engineering KyungHee University)
  • 구광회 (경희대학교 일반대학원 전자전파공학과) ;
  • 김창우 (경희대학교 일반대학원 전자전파공학과)
  • Published : 2008.06.18
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Abstract

A quadrature voltage controlled oscillator(QVCO) with MOS-varactors has been fabricated for X-band applications. The QVCO consists of two cross -coupled differential cores and buffer amplifiers, which has fabricated in TSMC $0.18{\mu}m$ CMOS process. The QVCO exhibits a frequency tuning range from 8.38 GHz to 10.62 GHz. The phase noise is -88 dBc/Hz at 1 MHz-offset frequency. The total bias current is 25 mA including four buffer amplifiers.

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