IEICE TRANSACTIONS on Communications
Grating Lobes Suppression in Transverse Slot Linear Array with a Dual Parasitic Beam of Strip Dipoles
Summary :
A new technique called the Dual Parasitic Beam (DPB) technique is proposed to suppress grating lobes in a rectangular waveguide broad wall transverse slot array. This technique involves an extra layer of parasitic strip dipoles that generate the DPB to suppress the grating lobes without opposing the main beam of the original slot linear array. A full wave EM analysis in Method of Moments (MoM) is conducted to compute the coupling excitation coefficients as well as the far field patterns of the slot and dipole currents. Analysis shows that a suitable dimension and arrangement of dipoles are needed to get a desired level of dipole excitations to meet the grating suppression condition. It is found that the grating lobes can be suppressed as much as 15 dB in the presence of the parasitic dipoles. Experiments are conducted to confirm the computed results.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E88-B No.6 pp.2320-2326
- Publication Date
- 2005/06/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietcom/e88-b.6.2320
- Type of Manuscript
- Special Section PAPER (Special Section on 2004 International Symposium on Antennas and Propagation)
- Category
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M.G. Sorwar HOSSAIN, Jiro HIROKAWA, Makoto ANDO, "Grating Lobes Suppression in Transverse Slot Linear Array with a Dual Parasitic Beam of Strip Dipoles" in IEICE TRANSACTIONS on Communications,
vol. E88-B, no. 6, pp. 2320-2326, June 2005, doi: 10.1093/ietcom/e88-b.6.2320.
Abstract: A new technique called the Dual Parasitic Beam (DPB) technique is proposed to suppress grating lobes in a rectangular waveguide broad wall transverse slot array. This technique involves an extra layer of parasitic strip dipoles that generate the DPB to suppress the grating lobes without opposing the main beam of the original slot linear array. A full wave EM analysis in Method of Moments (MoM) is conducted to compute the coupling excitation coefficients as well as the far field patterns of the slot and dipole currents. Analysis shows that a suitable dimension and arrangement of dipoles are needed to get a desired level of dipole excitations to meet the grating suppression condition. It is found that the grating lobes can be suppressed as much as 15 dB in the presence of the parasitic dipoles. Experiments are conducted to confirm the computed results.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.6.2320/_p
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@ARTICLE{e88-b_6_2320,
author={M.G. Sorwar HOSSAIN, Jiro HIROKAWA, Makoto ANDO, },
journal={IEICE TRANSACTIONS on Communications},
title={Grating Lobes Suppression in Transverse Slot Linear Array with a Dual Parasitic Beam of Strip Dipoles},
year={2005},
volume={E88-B},
number={6},
pages={2320-2326},
abstract={A new technique called the Dual Parasitic Beam (DPB) technique is proposed to suppress grating lobes in a rectangular waveguide broad wall transverse slot array. This technique involves an extra layer of parasitic strip dipoles that generate the DPB to suppress the grating lobes without opposing the main beam of the original slot linear array. A full wave EM analysis in Method of Moments (MoM) is conducted to compute the coupling excitation coefficients as well as the far field patterns of the slot and dipole currents. Analysis shows that a suitable dimension and arrangement of dipoles are needed to get a desired level of dipole excitations to meet the grating suppression condition. It is found that the grating lobes can be suppressed as much as 15 dB in the presence of the parasitic dipoles. Experiments are conducted to confirm the computed results.},
keywords={},
doi={10.1093/ietcom/e88-b.6.2320},
ISSN={},
month={June},}
Copy
TY - JOUR
TI - Grating Lobes Suppression in Transverse Slot Linear Array with a Dual Parasitic Beam of Strip Dipoles
T2 - IEICE TRANSACTIONS on Communications
SP - 2320
EP - 2326
AU - M.G. Sorwar HOSSAIN
AU - Jiro HIROKAWA
AU - Makoto ANDO
PY - 2005
DO - 10.1093/ietcom/e88-b.6.2320
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2005
AB - A new technique called the Dual Parasitic Beam (DPB) technique is proposed to suppress grating lobes in a rectangular waveguide broad wall transverse slot array. This technique involves an extra layer of parasitic strip dipoles that generate the DPB to suppress the grating lobes without opposing the main beam of the original slot linear array. A full wave EM analysis in Method of Moments (MoM) is conducted to compute the coupling excitation coefficients as well as the far field patterns of the slot and dipole currents. Analysis shows that a suitable dimension and arrangement of dipoles are needed to get a desired level of dipole excitations to meet the grating suppression condition. It is found that the grating lobes can be suppressed as much as 15 dB in the presence of the parasitic dipoles. Experiments are conducted to confirm the computed results.
ER -
English
