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http://dx.doi.org/10.5515/KJKIEES.2007.18.10.1157

A Study on the E-TDLNN Method for the Behavioral Modeling of Power Amplifiers  

Cho, Suk-Hui (DNR Inc.)
Lee, Jong-Rak (Dept. of Radio Communication Engineering, Kumoh National Institute of Technology)
Cho, Kyung-Rae (Dept. of Radio Communication Engineering, Kumoh National Institute of Technology)
Seo, Tae-Hwan (Dept. of Radio Communication Engineering, Kumoh National Institute of Technology)
Kim, Byung-Chul (Dept. of Radio Communication Engineering, Kumoh National Institute of Technology)
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Abstract
In this paper, E-TDLNN(Expanded-Tapped Delay Line Neural Network) method is suggested to make the model of power amplifier effectively. This method is the one for making the model of power amplifier through the study in neural network to the target value, the measured output spectrum of power amplifier, after adding the external value factor, gate bias, as an invariant input to the TDLNN method which suggested the memory effect of power amplifier effectively. To prove the validity of suggested method, the data at 2 points, 3.45 V and 3.50 V of gate bias range $3.4{\sim}3.6V$ with the 0.01 V step change, are studied and the predicted results at the gate bias 3.40 V, 3.48 V, 3.53 V and 3.60 V shows good coincidence with the measured values.
Keywords
Neural Network; E-TDLNN; Power Amplifiers; Modeling;
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  • Reference
1 Martin T. Hagan, Neural Network Design, PWS Publishing Company, 1995
2 M. Vai, S. Wu, B. Li, and S. Prasad, 'Reverse modeling of microwave circuits with bidirectional neural network models', IEEE Trans. on Microwave Theory and Techniques, vol. MTT-46, pp. 1492-1494, 1998
3 황보훈, 김원호, 나완수, 김병성, 박천석, 양영구, 'Two-Tone 입력을 위용한 RF 전력 증폭기 메모리 특성의 신경망 모델링', 한국전자파학회논문지, 16(10), 2005년 10월
4 J. W. Bandler, M. A. Ismail, J. E. Rayas-Sa' nchez, and Q. J. Zhang, 'Neuromodeling of microwave circuits exploiting space mapping technology', IEEE Trans. on Microwave Theory and Techniques, vol. MTT-47, pp. 2417-2427, 1999
5 John Wood, David E. Root, Fundamentals of Nonlinear Behavioral Modeling for RF and Microwave Design, Artech House, 2005
6 Q. J. Zhang, K. C. Gupta, Neural Networks for RF and Microwave Design, Norwood, Artech House, 2000
7 F. Wang, Q. J. Zhang, 'Knowledge based neural models for microwave design', IEEE Trans. On Microwave Theory and Techniques, vol. MTT-45, 1997, pp. 2333-2342
8 A. H. Zaabab, Q. J. Zhang, and M. S. Nakhla, 'A neural network approach to circuit optimization and statistical design', IEEE Trans. on Microwave Theory and Techiques, vol. MTT-43, 1995, pp. 1349-1358