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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (12): 1815-1823    DOI: 10.1631/jzus.A0820774
Microelectronics     
Efficient design of rotary traveling wave oscillator array via geometric programming
Li-jia CHEN, Hua-feng ZHANG, Jin-fang ZHOU, Kang-sheng CHEN
Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  This paper presents an efficient method for globally optimizing and automating component sizing for rotary traveling wave oscillator arrays. The lumped equivalent model of transmission lines loaded by inverter pairs is evaluated and posynomial functions for oscillation frequency, power dissipation, phase noise, etc. are formulated using transmission line theory. The resulting design problem can be posed as a geometric programming problem, which can be efficiently solved with a convex optimization solver. The proposed method can compute the global optima more efficiently than the traditional iterative scheme and various design problems can be solved with the same circuit model. The globally optimal trade-off curves between competing objectives are also computed to carry out robust designs and quickly explore the design space.

Key wordsRotary traveling wave oscillator array (RTWOA)      Clock distribution      Transmission line resonator      Global optimization      Geometric programming (GP)     
Received: 08 April 2008     
CLC:  TN4  
  TN75  
Cite this article:

Li-jia CHEN, Hua-feng ZHANG, Jin-fang ZHOU, Kang-sheng CHEN. Efficient design of rotary traveling wave oscillator array via geometric programming. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(12): 1815-1823.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820774     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I12/1815

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