This paper proposes a dual linear-polarized open-ended waveguide subarray designed for use in phased array antennas. The proposed subarray is a one-dimensional linear array that consists of open-ended waveguide antenna elements and suspended stripline feed networks to realize vertical and horizontal polarizations. The antenna includes a novel suspended stripline-to-waveguide transition that combines double- and quad-ridge waveguides to minimize the size of the transition and enhance the port isolation. Metal posts are installed on the waveguide apertures to eliminate scan-blindness. Prototype subarrays are fabricated and tested in an array of 16 subarrays. The experimental tests and numerical simulations indicate that the prototype subarray offers a low reflection coefficient of less than -11.4dB, low cross-polarization of less than -26dB, and antenna efficiency above 69% in the frequency bandwidth of 14%.
Narihiro NAKAMOTO
Mitsubishi Electric Corporation
Toru TAKAHASHI
Mitsubishi Electric Corporation
Toru FUKASAWA
Mitsubishi Electric Corporation
Naofumi YONEDA
Mitsubishi Electric Corporation
Hiroaki MIYASHITA
Mitsubishi Electric Corporation
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Narihiro NAKAMOTO, Toru TAKAHASHI, Toru FUKASAWA, Naofumi YONEDA, Hiroaki MIYASHITA, "A Suspended Stripline Fed Dual-Polarized Open-Ended Waveguide Subarray with Metal Posts for Phased Array Antennas" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 3, pp. 295-303, March 2021, doi: 10.1587/transcom.2020EBP3067.
Abstract: This paper proposes a dual linear-polarized open-ended waveguide subarray designed for use in phased array antennas. The proposed subarray is a one-dimensional linear array that consists of open-ended waveguide antenna elements and suspended stripline feed networks to realize vertical and horizontal polarizations. The antenna includes a novel suspended stripline-to-waveguide transition that combines double- and quad-ridge waveguides to minimize the size of the transition and enhance the port isolation. Metal posts are installed on the waveguide apertures to eliminate scan-blindness. Prototype subarrays are fabricated and tested in an array of 16 subarrays. The experimental tests and numerical simulations indicate that the prototype subarray offers a low reflection coefficient of less than -11.4dB, low cross-polarization of less than -26dB, and antenna efficiency above 69% in the frequency bandwidth of 14%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3067/_p
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@ARTICLE{e104-b_3_295,
author={Narihiro NAKAMOTO, Toru TAKAHASHI, Toru FUKASAWA, Naofumi YONEDA, Hiroaki MIYASHITA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Suspended Stripline Fed Dual-Polarized Open-Ended Waveguide Subarray with Metal Posts for Phased Array Antennas},
year={2021},
volume={E104-B},
number={3},
pages={295-303},
abstract={This paper proposes a dual linear-polarized open-ended waveguide subarray designed for use in phased array antennas. The proposed subarray is a one-dimensional linear array that consists of open-ended waveguide antenna elements and suspended stripline feed networks to realize vertical and horizontal polarizations. The antenna includes a novel suspended stripline-to-waveguide transition that combines double- and quad-ridge waveguides to minimize the size of the transition and enhance the port isolation. Metal posts are installed on the waveguide apertures to eliminate scan-blindness. Prototype subarrays are fabricated and tested in an array of 16 subarrays. The experimental tests and numerical simulations indicate that the prototype subarray offers a low reflection coefficient of less than -11.4dB, low cross-polarization of less than -26dB, and antenna efficiency above 69% in the frequency bandwidth of 14%.},
keywords={},
doi={10.1587/transcom.2020EBP3067},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - A Suspended Stripline Fed Dual-Polarized Open-Ended Waveguide Subarray with Metal Posts for Phased Array Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 295
EP - 303
AU - Narihiro NAKAMOTO
AU - Toru TAKAHASHI
AU - Toru FUKASAWA
AU - Naofumi YONEDA
AU - Hiroaki MIYASHITA
PY - 2021
DO - 10.1587/transcom.2020EBP3067
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2021
AB - This paper proposes a dual linear-polarized open-ended waveguide subarray designed for use in phased array antennas. The proposed subarray is a one-dimensional linear array that consists of open-ended waveguide antenna elements and suspended stripline feed networks to realize vertical and horizontal polarizations. The antenna includes a novel suspended stripline-to-waveguide transition that combines double- and quad-ridge waveguides to minimize the size of the transition and enhance the port isolation. Metal posts are installed on the waveguide apertures to eliminate scan-blindness. Prototype subarrays are fabricated and tested in an array of 16 subarrays. The experimental tests and numerical simulations indicate that the prototype subarray offers a low reflection coefficient of less than -11.4dB, low cross-polarization of less than -26dB, and antenna efficiency above 69% in the frequency bandwidth of 14%.
ER -