Browse > Article

Design of Low-Power Hybrid LNA with Multi-Input for Mobile Ultrasound System  

Song, Jae-Yeol (전남대학교)
Lee, Kyung-Hoon (전남대학교)
Park, Sung-Mo (전남대학교)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.15, no.2, 2014 , pp. 64-69 More about this Journal
Abstract
Ultrasound system is one of the complex wireless signal processing systems that are widely used in the fields of modern industry such as medical diagnostics, underwater communications, and sensor-networks. Miniaturization of ultrasound system has been raging recently. In this paper, a hybrid LNA that is suitable for miniaturization and mobile diagnostic ultrasound system has been developed. The proposed LNA has low noise figure of less than 5dB, and the feedback resistor is designed to be electrically adjusted in order to attain the impedance-matching for various ultrasound transducers. It supports the whole ultrasound frequencies from 10KHz to 150MHz frequency band and also provides sleep modes. A gain from -18.8 to -29.5 dB is achieved by adjusting each transducer to fit the system character. Power consumption can be reduced up to 90% in similar performance as compared to the existing LNA.
Keywords
Ultrasound LNA; Current-reuse; Low-power; Multi input;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 T. Lee, The Design of CMOS Radio-Frequency Integrated Circuits, Cambridge University Press, 2004.
2 조내현, 김덕영, 김용득, 정연모, "수중통신을 위한 QPSK 초음파 송수신기의 설계." 대한전자공학회, 전자공학회논문지-SC, Vol. 43, No. 3 (통권 제 309호), pp. 51-59, Jun 2006.
3 Signal Processing Overview of Ultrasound System for Medical Imaging, www.ti.com, SPRAB12-November 2008.
4 Yi-Jing Lin, Shawn S. H. Hsu, "A 3.1-10.6 GHz Ultra-Wideband CMOS Low Noise Amplifier With Current-Reused Technique," IEEE microwave and wireless components lett., vol. 17, 2007.
5 Yi-Jing, Shawn S. H. Hsu, "A 3.1-10.6GHz Ultra-Wideband CMOS Low Noise Amplifier With Current-Reused Technique," IEEE microwave and wireless components lett.,vol. 17, 2007.
6 Behzad Razavi, Design of Analog CMOS Integrated Circuits, ISBN 0-07-118839-8, 2001.
7 J. Yoon, S. Lee, J. Kim, N. Song, J. Koh and J. Choi, "Low-Noise Amplifier Path for Ultrasound System Applications," in Proc. IEEE Asia Pacific Conference on Circuits and Systems, pp. 244-247, December 2010.
8 H. Choi, X. Li, S. J. Lau, C. H. Hu, Q. Zhou, and K. Kirk Shung, "Development of Intergrated Preamplifier for High-Frequency Ultrasonic Transducers and Low-Power Handheld Receiver," IEEE Transactions on Ultrasonics, Ferroelectric, and Frequency Control, Vol. 58, No. 12, December 2011.
9 B. Rahmatian and S. Mirabbasi, "A low-power 75-dB digitally programmable variable-gain amplifier in 0.18 $\mu{m}$ CMOS," Can, J, Electr. Comput. Eng., Vol. 32, No. 4, pp. 181-186, Fall 2007.   DOI   ScienceOn
10 변무광, 박성준, "수중 센서네트워크를 위한 초음파 통신 모뎀 설계 및 구현". 한국통신학회, 한국통신학회 논문지, Vol. 34, No. 6, pp. 437-444, Jun 2009.