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Wave representations for SPICE‐type circuit simulators
Author(s) -
Huang ChienChang
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20971
Subject(s) - spice , electronic engineering , microwave , amplifier , electrical engineering , filter (signal processing) , electronic circuit , ideal (ethics) , engineering , reflection (computer programming) , voltage , electronic circuit simulation , computer science , telecommunications , philosophy , cmos , epistemology , programming language
Due to the limitation of nodal‐voltage analysis, wave behaviors such as the S ‐parameter representations of the RF/microwave circuits cannot be observed for SPICE‐type circuit simulators. This paper proposes a nodal formulation for the ideal directional coupler to separate the incident and reflected parts of the voltage so the reflection/transmission coefficients can be easily calculated, even in large‐signal conditions. Two simulation examples are given, including a band‐pass filter and a power amplifier in order to demonstrate the availability of the proposed method with confirmation from other microwave‐circuit software. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 301–303, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20971
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