Left-Handed Transmission Characteristics of Ferrite Microstrip Lines without Series Capacitive Loading

Tetsuya UEDA; Makoto TSUTSUMI

doi:10.1093/ietele/e89-c.9.1318

Left-Handed Transmission Characteristics of Ferrite Microstrip Lines without Series Capacitive Loading

Tetsuya UEDA, Makoto TSUTSUMI

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A nonreciprocal left-handed transmission line is proposed and investigated, which is composed of a normally magnetized ferrite microstrip line periodically loaded with inductive stubs but without capacitive loading. The circuit configuration becomes simpler than that of a nonreciprocal left-handed transmission line with both shunt inductive and series capacitive loadings. In the proposed structure, ferrite medium is employed as the substrate not only for the nonreciprocal characteristics but also for negative effective permeability that is essential to establish the left-handedness. After calculations of dispersion curves using equivalent circuit model, scattering parameters along with field patterns are estimated numerically with the help of electromagnetic simulation, and the experiments are also carried out. It is found that the band width of the proposed left-handed transmission line is relatively narrow but the structure still has the high isolation ratio of more than 30 dB.

Publication: IEICE TRANSACTIONS on Electronics Vol.E89-C No.9 pp.1318-1323

Publication Date: 2006/09/01

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Online ISSN: 1745-1353

DOI: 10.1093/ietele/e89-c.9.1318

Type of Manuscript: Special Section PAPER (Special Section on Metamaterials for Microwave and Millimeter-Wave Applications)

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Tetsuya UEDA, Makoto TSUTSUMI, "Left-Handed Transmission Characteristics of Ferrite Microstrip Lines without Series Capacitive Loading" in IEICE TRANSACTIONS on Electronics, vol. E89-C, no. 9, pp. 1318-1323, September 2006, doi: 10.1093/ietele/e89-c.9.1318.
Abstract: A nonreciprocal left-handed transmission line is proposed and investigated, which is composed of a normally magnetized ferrite microstrip line periodically loaded with inductive stubs but without capacitive loading. The circuit configuration becomes simpler than that of a nonreciprocal left-handed transmission line with both shunt inductive and series capacitive loadings. In the proposed structure, ferrite medium is employed as the substrate not only for the nonreciprocal characteristics but also for negative effective permeability that is essential to establish the left-handedness. After calculations of dispersion curves using equivalent circuit model, scattering parameters along with field patterns are estimated numerically with the help of electromagnetic simulation, and the experiments are also carried out. It is found that the band width of the proposed left-handed transmission line is relatively narrow but the structure still has the high isolation ratio of more than 30 dB.
URL: https://globals.ieice.org/en_transactions/electronics/10.1093/ietele/e89-c.9.1318/_p

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@ARTICLE{e89-c_9_1318,
author={Tetsuya UEDA, Makoto TSUTSUMI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Left-Handed Transmission Characteristics of Ferrite Microstrip Lines without Series Capacitive Loading},
year={2006},
volume={E89-C},
number={9},
pages={1318-1323},
abstract={A nonreciprocal left-handed transmission line is proposed and investigated, which is composed of a normally magnetized ferrite microstrip line periodically loaded with inductive stubs but without capacitive loading. The circuit configuration becomes simpler than that of a nonreciprocal left-handed transmission line with both shunt inductive and series capacitive loadings. In the proposed structure, ferrite medium is employed as the substrate not only for the nonreciprocal characteristics but also for negative effective permeability that is essential to establish the left-handedness. After calculations of dispersion curves using equivalent circuit model, scattering parameters along with field patterns are estimated numerically with the help of electromagnetic simulation, and the experiments are also carried out. It is found that the band width of the proposed left-handed transmission line is relatively narrow but the structure still has the high isolation ratio of more than 30 dB.},
keywords={},
doi={10.1093/ietele/e89-c.9.1318},
ISSN={1745-1353},
month={September},}

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TY - JOUR
TI - Left-Handed Transmission Characteristics of Ferrite Microstrip Lines without Series Capacitive Loading
T2 - IEICE TRANSACTIONS on Electronics
SP - 1318
EP - 1323
AU - Tetsuya UEDA
AU - Makoto TSUTSUMI
PY - 2006
DO - 10.1093/ietele/e89-c.9.1318
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E89-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2006
AB - A nonreciprocal left-handed transmission line is proposed and investigated, which is composed of a normally magnetized ferrite microstrip line periodically loaded with inductive stubs but without capacitive loading. The circuit configuration becomes simpler than that of a nonreciprocal left-handed transmission line with both shunt inductive and series capacitive loadings. In the proposed structure, ferrite medium is employed as the substrate not only for the nonreciprocal characteristics but also for negative effective permeability that is essential to establish the left-handedness. After calculations of dispersion curves using equivalent circuit model, scattering parameters along with field patterns are estimated numerically with the help of electromagnetic simulation, and the experiments are also carried out. It is found that the band width of the proposed left-handed transmission line is relatively narrow but the structure still has the high isolation ratio of more than 30 dB.
ER -