지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 저널정보
- 대한전자공학회 ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications ITC-CSCC : 2008
- 발행연도
- 2008.7
- 수록면
- 1,497 - 1,500 (4page)
이용수
초록· 키워드
오류제보하기
To qualify the condition of a multi standard and a multi band transceiver, a quadrature voltage controlled oscillator (VCO), which has a wide and proper tuning range, is necessary, while providing high phase noise performance and consuming low current. In this paper, a dual band quadrature VCO in 0.18 ㎛ CMOS process is proposed. To attain the dual band operation, a reconfigureurable LC tank is adopted. To generate quadrature phase signal with low phase noise and low power consumption, series coupling transistors are attached. To enhance the phase noise performance, a current source of the source of the nmos transistor is excluded, and a filter inductor at the common source node is included. The measured phase noises of low frequency band and high frequency band are -123.8 ㏈c/㎐ and -115.06 ㏈c/㎐ at 1 ㎒ offset frequency and figureure-of-merit (FoM) of -181.8 ㏈ and -180.5 ㏈ with 4 ㎃ current consumption with a 1.7 V supply.
목차
Abstract
1. Introduction
2. Consepts of the presented Quadrature VCO
3. Circuit design
4. Experimental Result
5. Conclusion
Acknowledgment
References
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