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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of The Korea Electromagnetic Engineering Society Vol.8 No.3
- 발행연도
- 2008.9
- 수록면
- 134 - 137 (4page)
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This paper proposes a novel quadrature VCO(QVCO) based on direct back-gate second harmonic coupling. The QVCO directly couples the current sources of the conventional LC VCOs through the back-gate instead of front-gate to generate quadrature signals. By the second harmonic injection locking, the two LC VCOs can generate quadrature signals without using on-chip transformer, or stability problem that is inherent in the direct front-gate second harmonic coupling. The proposed QVCO is implemented in 0.18 ㎛ CMOS technology operating at 2 ㎓ with 5.0 ㎃ core current consumption from 1.8 V power supply. The measured phase noise of the proposed QVCO is ?63 ㏈c/㎐ at 10 ㎑ offset, ?95 ㏈c/㎐ at 100 ㎑ offset, and ?116 ㏈c/㎐ at 1 ㎒ offset from the 2 ㎓ output frequency, respectively. The calculated figure of merit(FOM) is about ?174 dBc/㎐ at 1 ㎒ offset. The measured image band rejection is 46 ㏈ which corresponds to the phase error of 0.6˚.
목차
Abstract
Ⅰ. Introduction
Ⅱ. Circuit Design
Ⅲ. Measurement Results
Ⅳ. Conclusion
References
참고문헌 (11)
참고문헌 신청
1. [학술대회논문] - I. H. Jeong / / High quality RF passive integration using 35 μm thick oxide manufacturing technology / The 52nd Electronic Components and Technology Conference, San Diego, USA : 1007 ~ 1011
2. [학술대회논문] - H. Clearfield / 1998 / Integrated passive devices using Al/BCB thin films / Proceedings of the 7th International Conference on Multichip Modules, Denver, Colorado : 501 ~ 505
3. [학술지(정기간행물)] - R.Campbell / 2004 / An integrated IQ mixer for software defined radio applications / High Frequency Electronics 3 (1) : 26 ~ 33
4. [학술지(정기간행물)] - Rick Campbell / 2004 / Monolithic GaAs passive low pass 3 dB in-phase splitter/combiner / High Frequency Electronics 3 (7) : 50 ~ 55
5. [학술지(정기간행물)] - Dong-WookKim / 2003 / High Performance RF Passive Integration on a Si Smart Substrate for Wireless Applications / ETRI Journal 25 (2) : 65 ~ 72
2. [학술대회논문] - H. Clearfield / 1998 / Integrated passive devices using Al/BCB thin films / Proceedings of the 7th International Conference on Multichip Modules, Denver, Colorado : 501 ~ 505
3. [학술지(정기간행물)] - R.Campbell / 2004 / An integrated IQ mixer for software defined radio applications / High Frequency Electronics 3 (1) : 26 ~ 33
4. [학술지(정기간행물)] - Rick Campbell / 2004 / Monolithic GaAs passive low pass 3 dB in-phase splitter/combiner / High Frequency Electronics 3 (7) : 50 ~ 55
5. [학술지(정기간행물)] - Dong-WookKim / 2003 / High Performance RF Passive Integration on a Si Smart Substrate for Wireless Applications / ETRI Journal 25 (2) : 65 ~ 72
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