Synthesis of Lumped Transmission-Line Analogs
Name
Phinney synthesis.pdf
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1.17 MB
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Author(s)
Phinney, Joshua W.
Perreault, David J.
Lang, Jeffrey H.
Date Issued
July 2007
Journal
IEEE Transactions on Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Phinney, Joshua W., David J. Perreault, and Jeffrey H. Lang. “Synthesis of Lumped Transmission-Line Analogs.” IEEE Trans. Power Electron. 22, no. 4 (n.d.): 1531–1542.
Version
Final published version
Abstract
Transmission lines and their lumped approximating networks have long been incorporated into radio-frequency power amplifiers to improve efficiency and shape circuit waveforms and are beginning to perform a similar roles in high-frequency switched-mode power electronics. Though lumped line-simulating networks are often preferred to their distributed exemplars for reasons of design flexibility and manufacturability, the impedance peaks and nulls of such lumped networks must be aligned in a precise, harmonic manner to minimize loss and symmetrize converter waveforms. This paper addresses the issue of harmonic frequency alignment in line-simulating networks, presenting new analytic results for predicting the impedance-minimum and impedance-maximum frequencies of networks in a ladder form. Two means of correcting for the observed harmonic misalignment in practical structures will be presented, corroborated by measurements of laminar structures built into the thickness of printed-circuit boards. These structures comprise inductances and capacitances whose dimensions are largely decoupled, such that the simulated line can be accurately analyzed and designed on a lumped basis. The presented techniques will be placed within a power-electronics setting by a representative application incorporating a lumped, line-simulating network.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1109/TPEL.2007.900530
