Owing to their ultra-wideband characteristics, tapered slot antennas (TSAs) are used as element antennas in wideband phased arrays. However, when the size of a TSA is reduced in order to prevent the generation of a grating lobe during wide-angle beam scanning, the original ultra-wideband characteristics are degraded because of increased reflections from the ends of the tapered slot aperture. To overcome this difficulty, we propose a new antenna structure in which parallel-plate waveguides are added to the TSA. The advantage of this new structure is that the reflection characteristics of individual antenna elements are not degraded even if the width of the antenna aperture is very small, i.e., approximately one-half the wavelength of the highest operating frequency. In this study, we propose a procedure for designing the new antenna through numerical simulations by using the FDTD method. In addition, we verify the performance of the antenna array by experiments.
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Satoshi YAMAGUCHI, Hiroaki MIYASHITA, Toru TAKAHASHI, Masataka OTSUKA, Yoshihiko KONISHI, "Ultra-Wideband Tapered Slot Antenna Arrays with Parallel-Plate Waveguides" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 5, pp. 1248-1255, May 2010, doi: 10.1587/transcom.E93.B.1248.
Abstract: Owing to their ultra-wideband characteristics, tapered slot antennas (TSAs) are used as element antennas in wideband phased arrays. However, when the size of a TSA is reduced in order to prevent the generation of a grating lobe during wide-angle beam scanning, the original ultra-wideband characteristics are degraded because of increased reflections from the ends of the tapered slot aperture. To overcome this difficulty, we propose a new antenna structure in which parallel-plate waveguides are added to the TSA. The advantage of this new structure is that the reflection characteristics of individual antenna elements are not degraded even if the width of the antenna aperture is very small, i.e., approximately one-half the wavelength of the highest operating frequency. In this study, we propose a procedure for designing the new antenna through numerical simulations by using the FDTD method. In addition, we verify the performance of the antenna array by experiments.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1248/_p
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@ARTICLE{e93-b_5_1248,
author={Satoshi YAMAGUCHI, Hiroaki MIYASHITA, Toru TAKAHASHI, Masataka OTSUKA, Yoshihiko KONISHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Ultra-Wideband Tapered Slot Antenna Arrays with Parallel-Plate Waveguides},
year={2010},
volume={E93-B},
number={5},
pages={1248-1255},
abstract={Owing to their ultra-wideband characteristics, tapered slot antennas (TSAs) are used as element antennas in wideband phased arrays. However, when the size of a TSA is reduced in order to prevent the generation of a grating lobe during wide-angle beam scanning, the original ultra-wideband characteristics are degraded because of increased reflections from the ends of the tapered slot aperture. To overcome this difficulty, we propose a new antenna structure in which parallel-plate waveguides are added to the TSA. The advantage of this new structure is that the reflection characteristics of individual antenna elements are not degraded even if the width of the antenna aperture is very small, i.e., approximately one-half the wavelength of the highest operating frequency. In this study, we propose a procedure for designing the new antenna through numerical simulations by using the FDTD method. In addition, we verify the performance of the antenna array by experiments.},
keywords={},
doi={10.1587/transcom.E93.B.1248},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Ultra-Wideband Tapered Slot Antenna Arrays with Parallel-Plate Waveguides
T2 - IEICE TRANSACTIONS on Communications
SP - 1248
EP - 1255
AU - Satoshi YAMAGUCHI
AU - Hiroaki MIYASHITA
AU - Toru TAKAHASHI
AU - Masataka OTSUKA
AU - Yoshihiko KONISHI
PY - 2010
DO - 10.1587/transcom.E93.B.1248
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2010
AB - Owing to their ultra-wideband characteristics, tapered slot antennas (TSAs) are used as element antennas in wideband phased arrays. However, when the size of a TSA is reduced in order to prevent the generation of a grating lobe during wide-angle beam scanning, the original ultra-wideband characteristics are degraded because of increased reflections from the ends of the tapered slot aperture. To overcome this difficulty, we propose a new antenna structure in which parallel-plate waveguides are added to the TSA. The advantage of this new structure is that the reflection characteristics of individual antenna elements are not degraded even if the width of the antenna aperture is very small, i.e., approximately one-half the wavelength of the highest operating frequency. In this study, we propose a procedure for designing the new antenna through numerical simulations by using the FDTD method. In addition, we verify the performance of the antenna array by experiments.
ER -