A 47 GHz LC Cross-Coupled VCO Employing High-Q Island-Gate Varactor for Phase Noise Reduction

被引:7
作者
Kim, Namhyung [1 ]
Oh, Yongho [1 ]
Rieh, Jae-Sung [1 ]
机构
[1] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea
关键词
Phase noise; varactor; voltage controlled oscillator (VCO); OSCILLATOR;
D O I
10.1109/LMWC.2009.2038522
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 47 GHz cross-coupled voltage controlled oscillator (VCO) employing the high-island-gate varactor (IGV) based on a 0.13 mu m RFCMOS technology is reported in this work. To verify the improvement in the phase noise, two otherwise identical VCOs, each with an IGV and a conventional multi-finger varactor, were fabricated and the phase noise performance was compared. With V-DD of 1.2 V and core power consumption of 3.86 mW, the VCOs with the IGV and the multi-finger varactor have a phase noise of 95.4 dBc/Hz and 91.4 dBc/Hz respectively, at 1 MHz offset, verifying the phase noise reduction with the introduction of the high-Q IGV. The VCO with IGV exhibited an output power of around 15 dBm, leading to a FoM of 182.9 dBc/Hz and a tuning range of 3.35% (45.69 to 47.22 GHz).
引用
收藏
页码:94 / 96
页数:3
相关论文
共 8 条
[1]   A 16-18.8-GHz sub-integer-N frequency synthesizer for 60-GHz transceivers [J].
Floyd, Brian A. .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2008, 43 (05) :1076-1086
[2]   High-Q capacitors implemented in a CMOS process for low-power wireless applications [J].
Hung, CM ;
Ho, YC ;
Wu, IC ;
O, K .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (05) :505-511
[3]   A SIMPLE MODEL OF FEEDBACK OSCILLATOR NOISE SPECTRUM [J].
LEESON, DB .
PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1966, 54 (02) :329-&
[4]   Design and Analysis of a 90 nm mm-Wave Oscillator Using Inductive-Division LC Tank [J].
Li, Lianming ;
Reynaert, Patrick ;
Steyaert, Michiel S. J. .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2009, 44 (07) :1950-1958
[5]   The Island-Gate Varactor-A High-Q MOS Varactor for Millimeter-Wave Applications [J].
Oh, Yongho ;
Kim, Sooyeon ;
Lee, Seungyong ;
Rieh, Jae-Sung .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2009, 19 (04) :215-217
[6]   The effect of varactor nonlinearity on the phase noise of completely integrated VCOs [J].
Rogers, JWM ;
Macedo, JA ;
Plett, C .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2000, 35 (09) :1360-1367
[7]   High-Q thick-gate-oxide MOS varactors with subdesign-rule channel lengths for millimeter-wave applications [J].
Xu, Haifeng ;
Kenneth, K. O. .
IEEE ELECTRON DEVICE LETTERS, 2008, 29 (04) :363-365
[8]   94 GHz voltage controlled oscillator with 5.8% tuning range in bulk CMOS [J].
Zhang, Ning ;
Kenneth, K. O. .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (08) :548-550