Design of a Small Loop Antenna System for Receiving Waves in VLF and MF Bands Using a Series-Transformer Network

Toshimi OKADA; Isamu NAGANO; Kozo HASHIMOTO; Iwane KIMURA; Hiroshi OYA; Akira MORIOKA

Design of a Small Loop Antenna System for Receiving Waves in VLF and MF Bands Using a Series-Transformer Network

Toshimi OKADA, Isamu NAGANO, Kozo HASHIMOTO, Iwane KIMURA, Hiroshi OYA, Akira MORIOKA

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A new loop antenna system is proposed to detect the magnetic field of the natural electromagnetic wave in space in a very wide frequency band from 0.1 to 100 kHz. A single small loop antenna is followed by a network consisting of two transformers in series, one of which is optimized to pick up the signals at lower frequencies and the other, the signals at higher frequencies. Detailed analyses of the network are performed and the optimized parameters both on the loop and network are deduced for a small loop with an area of 0.50.5 m². The theoretically obtained pick-up factor and the threshold levels for minimum detection in each frequency band are confirmed through the laboratory experiments and the field observations of the natural VLF waves such as the whistler as well as the transmitted carrier signals from the VLF and MF stations. The system proposed has a potential merit when applied to the space experiment where the payload is limited. The work in this paper gives the fundamental for the design of the loop antenna system onboard the Japanese satellite (EXOS-D) to be launched in 1989.

Publication: IEICE TRANSACTIONS on transactions Vol.E70-E No.6 pp.550-561

Publication Date: 1987/06/25

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Type of Manuscript: PAPER

Category: Antenna and Propagation

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Toshimi OKADA
Isamu NAGANO
Kozo HASHIMOTO
Iwane KIMURA
Hiroshi OYA
Akira MORIOKA

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Toshimi OKADA, Isamu NAGANO, Kozo HASHIMOTO, Iwane KIMURA, Hiroshi OYA, Akira MORIOKA, "Design of a Small Loop Antenna System for Receiving Waves in VLF and MF Bands Using a Series-Transformer Network" in IEICE TRANSACTIONS on transactions, vol. E70-E, no. 6, pp. 550-561, June 1987, doi: .
Abstract: A new loop antenna system is proposed to detect the magnetic field of the natural electromagnetic wave in space in a very wide frequency band from 0.1 to 100 kHz. A single small loop antenna is followed by a network consisting of two transformers in series, one of which is optimized to pick up the signals at lower frequencies and the other, the signals at higher frequencies. Detailed analyses of the network are performed and the optimized parameters both on the loop and network are deduced for a small loop with an area of 0.50.5 m². The theoretically obtained pick-up factor and the threshold levels for minimum detection in each frequency band are confirmed through the laboratory experiments and the field observations of the natural VLF waves such as the whistler as well as the transmitted carrier signals from the VLF and MF stations. The system proposed has a potential merit when applied to the space experiment where the payload is limited. The work in this paper gives the fundamental for the design of the loop antenna system onboard the Japanese satellite (EXOS-D) to be launched in 1989.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e70-e_6_550/_p

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@ARTICLE{e70-e_6_550,
author={Toshimi OKADA, Isamu NAGANO, Kozo HASHIMOTO, Iwane KIMURA, Hiroshi OYA, Akira MORIOKA, },
journal={IEICE TRANSACTIONS on transactions},
title={Design of a Small Loop Antenna System for Receiving Waves in VLF and MF Bands Using a Series-Transformer Network},
year={1987},
volume={E70-E},
number={6},
pages={550-561},
abstract={A new loop antenna system is proposed to detect the magnetic field of the natural electromagnetic wave in space in a very wide frequency band from 0.1 to 100 kHz. A single small loop antenna is followed by a network consisting of two transformers in series, one of which is optimized to pick up the signals at lower frequencies and the other, the signals at higher frequencies. Detailed analyses of the network are performed and the optimized parameters both on the loop and network are deduced for a small loop with an area of 0.50.5 m². The theoretically obtained pick-up factor and the threshold levels for minimum detection in each frequency band are confirmed through the laboratory experiments and the field observations of the natural VLF waves such as the whistler as well as the transmitted carrier signals from the VLF and MF stations. The system proposed has a potential merit when applied to the space experiment where the payload is limited. The work in this paper gives the fundamental for the design of the loop antenna system onboard the Japanese satellite (EXOS-D) to be launched in 1989.},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - Design of a Small Loop Antenna System for Receiving Waves in VLF and MF Bands Using a Series-Transformer Network
T2 - IEICE TRANSACTIONS on transactions
SP - 550
EP - 561
AU - Toshimi OKADA
AU - Isamu NAGANO
AU - Kozo HASHIMOTO
AU - Iwane KIMURA
AU - Hiroshi OYA
AU - Akira MORIOKA
PY - 1987
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E70-E
IS - 6
JA - IEICE TRANSACTIONS on transactions
Y1 - June 1987
AB - A new loop antenna system is proposed to detect the magnetic field of the natural electromagnetic wave in space in a very wide frequency band from 0.1 to 100 kHz. A single small loop antenna is followed by a network consisting of two transformers in series, one of which is optimized to pick up the signals at lower frequencies and the other, the signals at higher frequencies. Detailed analyses of the network are performed and the optimized parameters both on the loop and network are deduced for a small loop with an area of 0.50.5 m². The theoretically obtained pick-up factor and the threshold levels for minimum detection in each frequency band are confirmed through the laboratory experiments and the field observations of the natural VLF waves such as the whistler as well as the transmitted carrier signals from the VLF and MF stations. The system proposed has a potential merit when applied to the space experiment where the payload is limited. The work in this paper gives the fundamental for the design of the loop antenna system onboard the Japanese satellite (EXOS-D) to be launched in 1989.
ER -