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Fast transient simulations from s-parameters with improved reference impedance / Mohd Ridzuan Khairulzaman

Fast transient simulations from s-parameters with improved reference impedance_Mohd Ridzuan Bin Khairulzaman_E3_2015_875000457_NI
Oleh sebab reka bentuk menjadi semakin canggih, menganalisisnya menjadi lebih rumit, dan menyokong kelajuan data yang tinggi dan kekerapan operasi yang tinggi menjadi lebih mencabar. Simulasi transien konvensional boleh menjadi sukar dan prosedur pengiraan yang mahal, kerana proses mengambil masa yang lama untuk disiapkan. Oleh itu, simulasi transien yang cepat digunakan berdasarkan konvolusi scattering parameter (S-parameter). Pendekatan alternatif kepada S-parameter menawarkan kestabilan, kecekapan dan pengiraan yang teguh. Dalam kajian ini, konvolusi domain frekuensi S-parameter telah dibentangkan, yang kemudiannya ditukar kepada data impuls respons atau domain masa menggunakan algoritma inverse Fast Fourier Transform (IFFT) untuk simulasi transien yang pantas bagi sambungan rangkaian berbilang port atau biasanya ditujukan sebagai model kotak hitam. Selepas itu, konvolusi S-parameter boleh dipertingkatkan lagi dengan mengoptimumkan sistem rujukan model. Peningkatan sebanyak 64% dan 29.5% penggunaan nombor titik IFFT dengan Black Box 1 dan Black Box 2. Keputusan ini masing-masing telah diperolehi berdasarkan rujukan impedans optimum yang diberikan dalam sintesis S-parameter pada model kotak hitam, dengan itu mempercepatkan program konvolusi, berbanding dengan 50Ω impedans rujukan nominal yang digunakan bagi melakukan simulasi transien yang pantas. Selain itu, rutin pengoptimuman yang dilaksanakan pada reka bentuk gelombang magnitud yang telah dilicinkan dan tiada kesan yang ketara diperhatikan pada respons domain masa _________________________________________________________________________________________ .As a design becomes more sophisticated, analyzing it becomes more complicated, and supporting high data speeds and high operating frequencies becomes more challenging. Conventional transient simulation can be a troublesome and a computationally expensive procedure, as the process takes a long time to complete. Hence, a fast transient simulation is utilized based on scattering parameter (S-parameter) convolution. This alternative approach to the S-parameter offers stability, efficiency and robust computation. In this research, the S-parameter frequency domain convolution was presented, which was later converted to impulse response or time domain data using the inverse Fast Fourier Transform (IFFT) algorithm for the fast transient simulation of multiport interconnect network or typically addressed as a black box model. Subsequently, the S-parameter convolution can be further improved by optimizing the reference system of the model. An improvement by 64% and 29.5% of IFFT point usage numbers with Black Box 1 and Black Box 2. These results respectively were obtained based on optimal reference impedance assigned in S-parameter synthesis on black box models, thus speeding up the convolution program, compared to the nominal reference impedance of 50Ω used to perform the fast transient simulation. Besides, the optimization routine implemented on the design has smoothed the magnitude of the waveform and there is no significant effect observed on the time domain response.
Contributor(s):
Mohd Ridzuan Khairulzaman - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 875000457
Language:
English
Subject Keywords:
transient simulation; Scattering parameter; integrated circuits emphasis
First presented to the public:
1/1/2015
Original Publication Date:
6/7/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 73
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-06-07 16:39:45.066
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Nor Hayati Ismail

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Fast transient simulations from s-parameters with improved reference impedance / Mohd Ridzuan Khairulzaman1 2018-06-07 16:39:45.066