Synthesis of Lumped Transmission-Line Analogs

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...

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Main Authors: Phinney, Joshua W., Perreault, David J., Lang, Jeffrey H.
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:en_US
Published: Institute of Electrical and Electronics Engineers (IEEE) 2014
Online Access:http://hdl.handle.net/1721.1/87108
https://orcid.org/0000-0002-5765-4369
https://orcid.org/0000-0002-0746-6191
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author Phinney, Joshua W.
Perreault, David J.
Lang, Jeffrey H.
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Phinney, Joshua W.
Perreault, David J.
Lang, Jeffrey H.
author_sort Phinney, Joshua W.
collection MIT
description 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.
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spelling mit-1721.1/871082022-09-28T07:54:20Z Synthesis of Lumped Transmission-Line Analogs Phinney, Joshua W. Perreault, David J. Lang, Jeffrey H. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Perreault, David J. Perreault, David J. Lang, Jeffrey H. 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. National Science Foundation (U.S.) (NSF Award 0401278) 2014-05-22T19:06:02Z 2014-05-22T19:06:02Z 2007-07 2006-11 Article http://purl.org/eprint/type/JournalArticle 0885-8993 INSPEC Accession Number: 9605936 http://hdl.handle.net/1721.1/87108 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. https://orcid.org/0000-0002-5765-4369 https://orcid.org/0000-0002-0746-6191 en_US http://dx.doi.org/10.1109/TPEL.2007.900530 IEEE Transactions on Power Electronics 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. application/pdf Institute of Electrical and Electronics Engineers (IEEE) Vabulas
spellingShingle Phinney, Joshua W.
Perreault, David J.
Lang, Jeffrey H.
Synthesis of Lumped Transmission-Line Analogs
title Synthesis of Lumped Transmission-Line Analogs
title_full Synthesis of Lumped Transmission-Line Analogs
title_fullStr Synthesis of Lumped Transmission-Line Analogs
title_full_unstemmed Synthesis of Lumped Transmission-Line Analogs
title_short Synthesis of Lumped Transmission-Line Analogs
title_sort synthesis of lumped transmission line analogs
url http://hdl.handle.net/1721.1/87108
https://orcid.org/0000-0002-5765-4369
https://orcid.org/0000-0002-0746-6191
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