A 48-Element Polarization-Rotating Van Atta Array Reflector with Suppressed Scattered Field

Masaharu FUJITA; Sota NAKAMURA

A 48-Element Polarization-Rotating Van Atta Array Reflector with Suppressed Scattered Field

Masaharu FUJITA, Sota NAKAMURA

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The design, manufacture, and test results are presented for a 90polarization-rotating Van Atta array reflector with suppressed scattered field for the 1.27-GHz band. The reflector consists of 48 element antennas, half for horizontal polarization and half for vertical polarization. It receives a horizontally or vertically polarized wave and retransmits a vertically or horizontally polarized wave, respectively. The measured cross-polarized radar cross section of the reflector was 15.8 dBm² on average, which agreed well with a theoretical prediction. Although the suppression of the scattered field was limited to about -20 dB relative to the retransmitted field, we could suppress more the scattered field by accurate positioning and careful characteristics adjustment of element antennas. Theoretical calculations showed that total phase errors of the element antennas including positioning errors and impedance characteristics errors have to be within 7.5to suppress the scattered field by less than -30 dB.

Publication: IEICE TRANSACTIONS on Communications Vol.E87-B No.12 pp.3753-3758

Publication Date: 2004/12/01

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Type of Manuscript: PAPER

Category: Antennas and Propagation

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Masaharu FUJITA, Sota NAKAMURA, "A 48-Element Polarization-Rotating Van Atta Array Reflector with Suppressed Scattered Field" in IEICE TRANSACTIONS on Communications, vol. E87-B, no. 12, pp. 3753-3758, December 2004, doi: .
Abstract: The design, manufacture, and test results are presented for a 90polarization-rotating Van Atta array reflector with suppressed scattered field for the 1.27-GHz band. The reflector consists of 48 element antennas, half for horizontal polarization and half for vertical polarization. It receives a horizontally or vertically polarized wave and retransmits a vertically or horizontally polarized wave, respectively. The measured cross-polarized radar cross section of the reflector was 15.8 dBm² on average, which agreed well with a theoretical prediction. Although the suppression of the scattered field was limited to about -20 dB relative to the retransmitted field, we could suppress more the scattered field by accurate positioning and careful characteristics adjustment of element antennas. Theoretical calculations showed that total phase errors of the element antennas including positioning errors and impedance characteristics errors have to be within 7.5to suppress the scattered field by less than -30 dB.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e87-b_12_3753/_p

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@ARTICLE{e87-b_12_3753,
author={Masaharu FUJITA, Sota NAKAMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={A 48-Element Polarization-Rotating Van Atta Array Reflector with Suppressed Scattered Field},
year={2004},
volume={E87-B},
number={12},
pages={3753-3758},
abstract={The design, manufacture, and test results are presented for a 90polarization-rotating Van Atta array reflector with suppressed scattered field for the 1.27-GHz band. The reflector consists of 48 element antennas, half for horizontal polarization and half for vertical polarization. It receives a horizontally or vertically polarized wave and retransmits a vertically or horizontally polarized wave, respectively. The measured cross-polarized radar cross section of the reflector was 15.8 dBm² on average, which agreed well with a theoretical prediction. Although the suppression of the scattered field was limited to about -20 dB relative to the retransmitted field, we could suppress more the scattered field by accurate positioning and careful characteristics adjustment of element antennas. Theoretical calculations showed that total phase errors of the element antennas including positioning errors and impedance characteristics errors have to be within 7.5to suppress the scattered field by less than -30 dB.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - A 48-Element Polarization-Rotating Van Atta Array Reflector with Suppressed Scattered Field
T2 - IEICE TRANSACTIONS on Communications
SP - 3753
EP - 3758
AU - Masaharu FUJITA
AU - Sota NAKAMURA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2004
AB - The design, manufacture, and test results are presented for a 90polarization-rotating Van Atta array reflector with suppressed scattered field for the 1.27-GHz band. The reflector consists of 48 element antennas, half for horizontal polarization and half for vertical polarization. It receives a horizontally or vertically polarized wave and retransmits a vertically or horizontally polarized wave, respectively. The measured cross-polarized radar cross section of the reflector was 15.8 dBm² on average, which agreed well with a theoretical prediction. Although the suppression of the scattered field was limited to about -20 dB relative to the retransmitted field, we could suppress more the scattered field by accurate positioning and careful characteristics adjustment of element antennas. Theoretical calculations showed that total phase errors of the element antennas including positioning errors and impedance characteristics errors have to be within 7.5to suppress the scattered field by less than -30 dB.
ER -