IEICE TRANSACTIONS on Electronics
Effects of Nonuniform Bias Magnetic Field on Left-Handed Ferrite Microstrip Line
Summary :
Transmission characteristics of a left-handed (LH) ferrite microstrip line are significantly affected by the nonuniform DC bias magnetic field in the ferrite substrate (internal magnetic field Hin) caused by the inhomogeneous demagnetizing effect because the strip conductors of these devices must be mounted at the edge of the ferrite substrate. Three dimensional analyses on the LH ferrite microstrip line are performed taking into account the nonuniform internal magnetic field Hin. The analytical results show that the nonuniform internal magnetic field under the strip conductor near the edge of the ferrite substrate is useful for spreading the frequency band of negative permeability and nonreciprocal operation, and for improvement of both the insertion and return losses of the LH ferrite microstrip line. Measured results of more than 20 dB isolation with 2.2 dB insertion loss and 1.33 GHz bandwidth are corresponding well to the analytical results.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E90-C No.9 pp.1756-1762
- Publication Date
- 2007/09/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1093/ietele/e90-c.9.1756
- Type of Manuscript
- Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
- Category
- Passive Devices/Circuits
Authors
Keyword
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Kensuke OKUBO, Makoto TSUTSUMI, "Effects of Nonuniform Bias Magnetic Field on Left-Handed Ferrite Microstrip Line" in IEICE TRANSACTIONS on Electronics,
vol. E90-C, no. 9, pp. 1756-1762, September 2007, doi: 10.1093/ietele/e90-c.9.1756.
Abstract: Transmission characteristics of a left-handed (LH) ferrite microstrip line are significantly affected by the nonuniform DC bias magnetic field in the ferrite substrate (internal magnetic field Hin) caused by the inhomogeneous demagnetizing effect because the strip conductors of these devices must be mounted at the edge of the ferrite substrate. Three dimensional analyses on the LH ferrite microstrip line are performed taking into account the nonuniform internal magnetic field Hin. The analytical results show that the nonuniform internal magnetic field under the strip conductor near the edge of the ferrite substrate is useful for spreading the frequency band of negative permeability and nonreciprocal operation, and for improvement of both the insertion and return losses of the LH ferrite microstrip line. Measured results of more than 20 dB isolation with 2.2 dB insertion loss and 1.33 GHz bandwidth are corresponding well to the analytical results.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e90-c.9.1756/_p
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@ARTICLE{e90-c_9_1756,
author={Kensuke OKUBO, Makoto TSUTSUMI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Effects of Nonuniform Bias Magnetic Field on Left-Handed Ferrite Microstrip Line},
year={2007},
volume={E90-C},
number={9},
pages={1756-1762},
abstract={Transmission characteristics of a left-handed (LH) ferrite microstrip line are significantly affected by the nonuniform DC bias magnetic field in the ferrite substrate (internal magnetic field Hin) caused by the inhomogeneous demagnetizing effect because the strip conductors of these devices must be mounted at the edge of the ferrite substrate. Three dimensional analyses on the LH ferrite microstrip line are performed taking into account the nonuniform internal magnetic field Hin. The analytical results show that the nonuniform internal magnetic field under the strip conductor near the edge of the ferrite substrate is useful for spreading the frequency band of negative permeability and nonreciprocal operation, and for improvement of both the insertion and return losses of the LH ferrite microstrip line. Measured results of more than 20 dB isolation with 2.2 dB insertion loss and 1.33 GHz bandwidth are corresponding well to the analytical results.},
keywords={},
doi={10.1093/ietele/e90-c.9.1756},
ISSN={1745-1353},
month={September},}
Copy
TY - JOUR
TI - Effects of Nonuniform Bias Magnetic Field on Left-Handed Ferrite Microstrip Line
T2 - IEICE TRANSACTIONS on Electronics
SP - 1756
EP - 1762
AU - Kensuke OKUBO
AU - Makoto TSUTSUMI
PY - 2007
DO - 10.1093/ietele/e90-c.9.1756
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E90-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2007
AB - Transmission characteristics of a left-handed (LH) ferrite microstrip line are significantly affected by the nonuniform DC bias magnetic field in the ferrite substrate (internal magnetic field Hin) caused by the inhomogeneous demagnetizing effect because the strip conductors of these devices must be mounted at the edge of the ferrite substrate. Three dimensional analyses on the LH ferrite microstrip line are performed taking into account the nonuniform internal magnetic field Hin. The analytical results show that the nonuniform internal magnetic field under the strip conductor near the edge of the ferrite substrate is useful for spreading the frequency band of negative permeability and nonreciprocal operation, and for improvement of both the insertion and return losses of the LH ferrite microstrip line. Measured results of more than 20 dB isolation with 2.2 dB insertion loss and 1.33 GHz bandwidth are corresponding well to the analytical results.
ER -
English
