J. Semicond. > Volume 34 > Issue 1 > Article Number: 015004

A wideband 0.13 μm CMOS LC-VCO for IMT-advanced and UWB applications

Xin Tang , , Fengyi Huang , Xusheng Tang and Mingchi Shao

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Abstract: This paper presents an LC voltage controlled oscillator (VCO) in a dual-band frequency synthesizer for IMT-advanced and UWB applications. The switched current source, cross-coupled pair and noise filtering technique are adopted in this VCO design to improve the performance of the phase noise, power consumption, voltage amplitude, and tuning range. In order to achieve a wide tuning range, a reconfigurable LC tank with 4 bits switch control is adopted in the core circuit design. The size of the entire chip with pad is 1.11×0.98 mm2. The test results show that the current dissipation of the VCO at UWB and IMT-Advanced band is 3 mA and 4.5 mA in a 1.2 V supply. The tuning range of the designed VCO is 3.86-5.28 GHz and 3.14-3.88 GHz. The phase-noise at 1 MHz frequency offset from a 3.5 GHz and 4.2 GHz carrier is-123 dBc/Hz and-119 dBc/Hz, respectively.

Key words: LC VCOvoltage controlled oscillatorphase noiseCMOSUWBIMT-advanced

Abstract: This paper presents an LC voltage controlled oscillator (VCO) in a dual-band frequency synthesizer for IMT-advanced and UWB applications. The switched current source, cross-coupled pair and noise filtering technique are adopted in this VCO design to improve the performance of the phase noise, power consumption, voltage amplitude, and tuning range. In order to achieve a wide tuning range, a reconfigurable LC tank with 4 bits switch control is adopted in the core circuit design. The size of the entire chip with pad is 1.11×0.98 mm2. The test results show that the current dissipation of the VCO at UWB and IMT-Advanced band is 3 mA and 4.5 mA in a 1.2 V supply. The tuning range of the designed VCO is 3.86-5.28 GHz and 3.14-3.88 GHz. The phase-noise at 1 MHz frequency offset from a 3.5 GHz and 4.2 GHz carrier is-123 dBc/Hz and-119 dBc/Hz, respectively.

Key words: LC VCOvoltage controlled oscillatorphase noiseCMOSUWBIMT-advanced



References:

[1]

Hu X R. Design and realization of dual-band VCO for IMT-advanced and UWB systems[J]. Master Thesis of Southeast University, 2010: 1.

[2]

Gao P J, Oh N J, Min H. An enhanced close-in phase noise LC-VCO using parasitic V-NPN transistors in a CMOS process[J]. Journal of Semiconductors, 2009, 30(8): 085004. doi: 10.1088/1674-4926/30/8/085004

[3]

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[4]

Hajimiri A, Lee T H. A general theory of phase noise in electrical oscillators[J]. IEEE J Solid-State Circuits, 1998, 33: 179. doi: 10.1109/4.658619

[5]

Hajimiri A, Lee T H. Design issues in CMOS differential LC oscillators[J]. IEEE J Solid-State Circuits, 1999, 34(5): 717. doi: 10.1109/4.760384

[6]

Chan C F, Tang S K, Pun K P. A 4-GHz VCO for multiband OFDM UWB systems[J]. IEEE International Conference on Electron Devices and Solid-State Circuits, 2008: 1.

[7]

Tsai M D, Cho Y H, Wang H. A 5-GHz low phase noise differential colpitts CMOS VCO[J]. IEEE Microw Wireless Compon Lett, 2005, 15(5): 327. doi: 10.1109/LMWC.2005.847696

[8]

Fong N H W, Plouchart J O, Zamdmer N. Design of wide-band CMOS VCO for multiband wireless LAN applications[J]. IEEE J Solid-State Circuits, 2003, 38(8): 1333. doi: 10.1109/JSSC.2003.814440

[9]

Andreani P, Mattisson S. On the use of MOS varactors in RF VCOs[J]. IEEE J Solid-State Circuits, 2000, 35(6): 905. doi: 10.1109/4.845194

[10]

Levantino S, Samori C, Bonfanti A. Frequency dependence on bias current in 5-GHz CMOS VCOs:impact on tuning range and flicker noise upconversion[J]. IEEE J Solid-State Circuits, 2002, 37(8): 1003. doi: 10.1109/JSSC.2002.800969

[11]

Stagni C, Italia A, Palmisano G. Wideband CMOS LC VCOs for IEEE 802[J]. Proceedings of the 3rd European Microwave Integrated Circuits Conference, 2008: 246.

[12]

De Muer B, Borremans M, Steyaert M. A 2-GHz low phase noise integrated LC-VCO set with flicker noise upconversion minimization[J]. IEEE J Solid-State Circuits, 2000, 35(7): 1034. doi: 10.1109/4.848213

[13]

Chi B Y, Yu Z P, Shi B X. Analysis and design of CMOS RF integrated circuits[J]. Beijing:Tsinghua University, 2006.

[14]

Jiang Y W. Design and implementation of WSN frequency synthesizer and LC-VCO[J]. Master Thesis of Southeast University, 2010.

[15]

Yim S M, Ok K. Switched resonators and their applications in a dual-band monolithic CMOS LC-tuned VCO[J]. IEEE Trans Microw Theory Tech, 2006, 54: 74. doi: 10.1109/TMTT.2005.856102

[16]

Cao S G, Han K F, Tan X. A 1.0 V differential VCO in 0.13μm CMOS technology[J]. Journal of Semiconductors, 2011, 32(2): 025010. doi: 10.1088/1674-4926/32/2/025010

[17]

Kim J H, Yoo H J. Multi-standard CMOS LC QVCO with reconfigurable LC tank and low power low phase noise quadrature generation method[J]. IEICE Trans Fundamentals, 2006, E89-A(6): 1547. doi: 10.1093/ietfec/e89-a.6.1547

[18]

Demirkan M, Bruss S P, Spencer R R. Design of wide tuning-range CMOS VCOs using switched coupled-inductors[J]. IEEE Journal & Magazine, 2008, 43(12): 1156.

[19]

Jung J, Zhu S, Liu P. 22-pJ/bit energy efficient 2.4-GHz implantable OOK transmitter for wireless biotelemetry systems:in vitro experiments using rat skin mimic[J]. IEEE Trans Microw Theory Tech, 2010, 58(12): 4102.

[1]

Hu X R. Design and realization of dual-band VCO for IMT-advanced and UWB systems[J]. Master Thesis of Southeast University, 2010: 1.

[2]

Gao P J, Oh N J, Min H. An enhanced close-in phase noise LC-VCO using parasitic V-NPN transistors in a CMOS process[J]. Journal of Semiconductors, 2009, 30(8): 085004. doi: 10.1088/1674-4926/30/8/085004

[3]

Ismail A, Abidi A. A CMOS differential LC oscillator with suppressed up-converted flicker noise[J]. IEEE Int Solid-State Circuits Conf, Dig Tech Papers, 2003, 1: 98. doi: 10.1109/ISSCC.2003.1234224

[4]

Hajimiri A, Lee T H. A general theory of phase noise in electrical oscillators[J]. IEEE J Solid-State Circuits, 1998, 33: 179. doi: 10.1109/4.658619

[5]

Hajimiri A, Lee T H. Design issues in CMOS differential LC oscillators[J]. IEEE J Solid-State Circuits, 1999, 34(5): 717. doi: 10.1109/4.760384

[6]

Chan C F, Tang S K, Pun K P. A 4-GHz VCO for multiband OFDM UWB systems[J]. IEEE International Conference on Electron Devices and Solid-State Circuits, 2008: 1.

[7]

Tsai M D, Cho Y H, Wang H. A 5-GHz low phase noise differential colpitts CMOS VCO[J]. IEEE Microw Wireless Compon Lett, 2005, 15(5): 327. doi: 10.1109/LMWC.2005.847696

[8]

Fong N H W, Plouchart J O, Zamdmer N. Design of wide-band CMOS VCO for multiband wireless LAN applications[J]. IEEE J Solid-State Circuits, 2003, 38(8): 1333. doi: 10.1109/JSSC.2003.814440

[9]

Andreani P, Mattisson S. On the use of MOS varactors in RF VCOs[J]. IEEE J Solid-State Circuits, 2000, 35(6): 905. doi: 10.1109/4.845194

[10]

Levantino S, Samori C, Bonfanti A. Frequency dependence on bias current in 5-GHz CMOS VCOs:impact on tuning range and flicker noise upconversion[J]. IEEE J Solid-State Circuits, 2002, 37(8): 1003. doi: 10.1109/JSSC.2002.800969

[11]

Stagni C, Italia A, Palmisano G. Wideband CMOS LC VCOs for IEEE 802[J]. Proceedings of the 3rd European Microwave Integrated Circuits Conference, 2008: 246.

[12]

De Muer B, Borremans M, Steyaert M. A 2-GHz low phase noise integrated LC-VCO set with flicker noise upconversion minimization[J]. IEEE J Solid-State Circuits, 2000, 35(7): 1034. doi: 10.1109/4.848213

[13]

Chi B Y, Yu Z P, Shi B X. Analysis and design of CMOS RF integrated circuits[J]. Beijing:Tsinghua University, 2006.

[14]

Jiang Y W. Design and implementation of WSN frequency synthesizer and LC-VCO[J]. Master Thesis of Southeast University, 2010.

[15]

Yim S M, Ok K. Switched resonators and their applications in a dual-band monolithic CMOS LC-tuned VCO[J]. IEEE Trans Microw Theory Tech, 2006, 54: 74. doi: 10.1109/TMTT.2005.856102

[16]

Cao S G, Han K F, Tan X. A 1.0 V differential VCO in 0.13μm CMOS technology[J]. Journal of Semiconductors, 2011, 32(2): 025010. doi: 10.1088/1674-4926/32/2/025010

[17]

Kim J H, Yoo H J. Multi-standard CMOS LC QVCO with reconfigurable LC tank and low power low phase noise quadrature generation method[J]. IEICE Trans Fundamentals, 2006, E89-A(6): 1547. doi: 10.1093/ietfec/e89-a.6.1547

[18]

Demirkan M, Bruss S P, Spencer R R. Design of wide tuning-range CMOS VCOs using switched coupled-inductors[J]. IEEE Journal & Magazine, 2008, 43(12): 1156.

[19]

Jung J, Zhu S, Liu P. 22-pJ/bit energy efficient 2.4-GHz implantable OOK transmitter for wireless biotelemetry systems:in vitro experiments using rat skin mimic[J]. IEEE Trans Microw Theory Tech, 2010, 58(12): 4102.

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X Tang, F Y Huang, X S Tang, M C Shao. A wideband 0.13 μm CMOS LC-VCO for IMT-advanced and UWB applications[J]. J. Semicond., 2013, 34(1): 015004. doi: 10.1088/1674-4926/34/1/015004.

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History

Manuscript received: 08 July 2012 Manuscript revised: 21 August 2012 Online: Published: 01 January 2013

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