A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot

Kaoru SUDO; Takuichi HIRANO; Jiro HIROKAWA; Makoto ANDO

A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot

Kaoru SUDO, Takuichi HIRANO, Jiro HIROKAWA, Makoto ANDO

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A rectangular-to-radial waveguide transformer through a crossed slot is proposed as a feeder of a radial line slot antenna (RLSA) for use in a system of solar power satellite (SPS). The transformer is analyzed and designed by using the MoM with numerical eigenmode basis functions. The measured ripple of the amplitude is 3.0 dB in the φ-direction and a 7.0% frequency bandwidth for rotating mode with the ripple below 6 dB is obtained. This bandwidth is wider than that of conventional ring slot or cavity resonator with a coaxial feeder. The antenna measurements at 5.8 GHz show reasonable rotational symmetry both in the near-field distribution and the far field radiation patterns. The reflection is -27.7 dB at the design frequency and below -15 dB in the 7.0% bandwidth. The gain of the antenna with the diameter of 300 mm is 22.7 dBi and the efficiency is 56%.

Publication: IEICE TRANSACTIONS on Communications Vol.E86-B No.10 pp.3063-3070

Publication Date: 2003/10/01

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Type of Manuscript: PAPER

Category: Antenna and Propagation

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Kaoru SUDO, Takuichi HIRANO, Jiro HIROKAWA, Makoto ANDO, "A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot" in IEICE TRANSACTIONS on Communications, vol. E86-B, no. 10, pp. 3063-3070, October 2003, doi: .
Abstract: A rectangular-to-radial waveguide transformer through a crossed slot is proposed as a feeder of a radial line slot antenna (RLSA) for use in a system of solar power satellite (SPS). The transformer is analyzed and designed by using the MoM with numerical eigenmode basis functions. The measured ripple of the amplitude is 3.0 dB in the φ-direction and a 7.0% frequency bandwidth for rotating mode with the ripple below 6 dB is obtained. This bandwidth is wider than that of conventional ring slot or cavity resonator with a coaxial feeder. The antenna measurements at 5.8 GHz show reasonable rotational symmetry both in the near-field distribution and the far field radiation patterns. The reflection is -27.7 dB at the design frequency and below -15 dB in the 7.0% bandwidth. The gain of the antenna with the diameter of 300 mm is 22.7 dBi and the efficiency is 56%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e86-b_10_3063/_p

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@ARTICLE{e86-b_10_3063,
author={Kaoru SUDO, Takuichi HIRANO, Jiro HIROKAWA, Makoto ANDO, },
journal={IEICE TRANSACTIONS on Communications},
title={A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot},
year={2003},
volume={E86-B},
number={10},
pages={3063-3070},
abstract={A rectangular-to-radial waveguide transformer through a crossed slot is proposed as a feeder of a radial line slot antenna (RLSA) for use in a system of solar power satellite (SPS). The transformer is analyzed and designed by using the MoM with numerical eigenmode basis functions. The measured ripple of the amplitude is 3.0 dB in the φ-direction and a 7.0% frequency bandwidth for rotating mode with the ripple below 6 dB is obtained. This bandwidth is wider than that of conventional ring slot or cavity resonator with a coaxial feeder. The antenna measurements at 5.8 GHz show reasonable rotational symmetry both in the near-field distribution and the far field radiation patterns. The reflection is -27.7 dB at the design frequency and below -15 dB in the 7.0% bandwidth. The gain of the antenna with the diameter of 300 mm is 22.7 dBi and the efficiency is 56%.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot
T2 - IEICE TRANSACTIONS on Communications
SP - 3063
EP - 3070
AU - Kaoru SUDO
AU - Takuichi HIRANO
AU - Jiro HIROKAWA
AU - Makoto ANDO
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E86-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2003
AB - A rectangular-to-radial waveguide transformer through a crossed slot is proposed as a feeder of a radial line slot antenna (RLSA) for use in a system of solar power satellite (SPS). The transformer is analyzed and designed by using the MoM with numerical eigenmode basis functions. The measured ripple of the amplitude is 3.0 dB in the φ-direction and a 7.0% frequency bandwidth for rotating mode with the ripple below 6 dB is obtained. This bandwidth is wider than that of conventional ring slot or cavity resonator with a coaxial feeder. The antenna measurements at 5.8 GHz show reasonable rotational symmetry both in the near-field distribution and the far field radiation patterns. The reflection is -27.7 dB at the design frequency and below -15 dB in the 7.0% bandwidth. The gain of the antenna with the diameter of 300 mm is 22.7 dBi and the efficiency is 56%.
ER -