Spiral Antenna with Two Off-Center Sources

Hisamatsu NAKANO; Kazuhide HIROSE; Junji YAMAUCHI

Spiral Antenna with Two Off-Center Sources

Hisamatsu NAKANO, Kazuhide HIROSE, Junji YAMAUCHI

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A new method of exciting a two-wire spiral antenna from two off-center sources is proposed in order to obtain the polarization diversity. It is found both numerically and experimentally that as the locations of two sources are shifted from the center of the spiral towards the arm ends, the radiation wave changes from a right-hand to a left-hand circularly polarized wave, by way of a stage in which a linearly polarized wave is produced. On the basis of the obtained results, the frequency characteristics of a spiral antenna with two fixed sources are investigated. It is found that the spiral antenna radiates a right-hand circularly polarized wave at a frequency of f" and a left-hand circularly polarized wave at a frequency of 2f".

Publication: IEICE TRANSACTIONS on transactions Vol.E67-E No.6 pp.309-314

Publication Date: 1984/06/25

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Type of Manuscript: PAPER

Category: Antenna and Propagation

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Hisamatsu NAKANO
Kazuhide HIROSE
Junji YAMAUCHI

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Hisamatsu NAKANO, Kazuhide HIROSE, Junji YAMAUCHI, "Spiral Antenna with Two Off-Center Sources" in IEICE TRANSACTIONS on transactions, vol. E67-E, no. 6, pp. 309-314, June 1984, doi: .
Abstract: A new method of exciting a two-wire spiral antenna from two off-center sources is proposed in order to obtain the polarization diversity. It is found both numerically and experimentally that as the locations of two sources are shifted from the center of the spiral towards the arm ends, the radiation wave changes from a right-hand to a left-hand circularly polarized wave, by way of a stage in which a linearly polarized wave is produced. On the basis of the obtained results, the frequency characteristics of a spiral antenna with two fixed sources are investigated. It is found that the spiral antenna radiates a right-hand circularly polarized wave at a frequency of f" and a left-hand circularly polarized wave at a frequency of 2f".
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e67-e_6_309/_p

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@ARTICLE{e67-e_6_309,
author={Hisamatsu NAKANO, Kazuhide HIROSE, Junji YAMAUCHI, },
journal={IEICE TRANSACTIONS on transactions},
title={Spiral Antenna with Two Off-Center Sources},
year={1984},
volume={E67-E},
number={6},
pages={309-314},
abstract={A new method of exciting a two-wire spiral antenna from two off-center sources is proposed in order to obtain the polarization diversity. It is found both numerically and experimentally that as the locations of two sources are shifted from the center of the spiral towards the arm ends, the radiation wave changes from a right-hand to a left-hand circularly polarized wave, by way of a stage in which a linearly polarized wave is produced. On the basis of the obtained results, the frequency characteristics of a spiral antenna with two fixed sources are investigated. It is found that the spiral antenna radiates a right-hand circularly polarized wave at a frequency of f" and a left-hand circularly polarized wave at a frequency of 2f".},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - Spiral Antenna with Two Off-Center Sources
T2 - IEICE TRANSACTIONS on transactions
SP - 309
EP - 314
AU - Hisamatsu NAKANO
AU - Kazuhide HIROSE
AU - Junji YAMAUCHI
PY - 1984
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E67-E
IS - 6
JA - IEICE TRANSACTIONS on transactions
Y1 - June 1984
AB - A new method of exciting a two-wire spiral antenna from two off-center sources is proposed in order to obtain the polarization diversity. It is found both numerically and experimentally that as the locations of two sources are shifted from the center of the spiral towards the arm ends, the radiation wave changes from a right-hand to a left-hand circularly polarized wave, by way of a stage in which a linearly polarized wave is produced. On the basis of the obtained results, the frequency characteristics of a spiral antenna with two fixed sources are investigated. It is found that the spiral antenna radiates a right-hand circularly polarized wave at a frequency of f" and a left-hand circularly polarized wave at a frequency of 2f".
ER -