Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions
Summary :
A rigorous analysis of coupling between two twin-slot antennas using the Finite Difference Time Domain (FDTD) method is reported for the first time. The Phase Cancellation Effect (PGE) is used to reduce the coupling due to the TM0 surface wave mode between the Coplanar Waveguide (CPW) fed cascade-connected twin-slot antennas. To confirm the effectiveness of this approach, coupling between single-slot and twin-slot elements separated by λ0/2 was analysed. The coupling between the two single-slot antennas was S21 = -30.2 dB. For the case of two twin-slot antennas, the coupling was found to be -37.8 dB, 7.6 dB below that of the single-slot antennas. The phase cancellation effect of surface waves is significant in reducing coupling between two twin-slot antennas, in addition to minimising power loss into substrate modes. A memory optimised implementation of the FDTD method with the Berenger Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) was used for the numerical analysis.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E80-C No.12 pp.1608-1613
- Publication Date
- 1997/12/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Category
- Microwave and Millimeter Wave Technology
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Seppo SAARIO, Yongxi QIAN, Eikichi YAMASHITA, "Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions" in IEICE TRANSACTIONS on Electronics,
vol. E80-C, no. 12, pp. 1608-1613, December 1997, doi: .
Abstract: A rigorous analysis of coupling between two twin-slot antennas using the Finite Difference Time Domain (FDTD) method is reported for the first time. The Phase Cancellation Effect (PGE) is used to reduce the coupling due to the TM0 surface wave mode between the Coplanar Waveguide (CPW) fed cascade-connected twin-slot antennas. To confirm the effectiveness of this approach, coupling between single-slot and twin-slot elements separated by λ0/2 was analysed. The coupling between the two single-slot antennas was S21 = -30.2 dB. For the case of two twin-slot antennas, the coupling was found to be -37.8 dB, 7.6 dB below that of the single-slot antennas. The phase cancellation effect of surface waves is significant in reducing coupling between two twin-slot antennas, in addition to minimising power loss into substrate modes. A memory optimised implementation of the FDTD method with the Berenger Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) was used for the numerical analysis.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e80-c_12_1608/_p
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@ARTICLE{e80-c_12_1608,
author={Seppo SAARIO, Yongxi QIAN, Eikichi YAMASHITA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions},
year={1997},
volume={E80-C},
number={12},
pages={1608-1613},
abstract={A rigorous analysis of coupling between two twin-slot antennas using the Finite Difference Time Domain (FDTD) method is reported for the first time. The Phase Cancellation Effect (PGE) is used to reduce the coupling due to the TM0 surface wave mode between the Coplanar Waveguide (CPW) fed cascade-connected twin-slot antennas. To confirm the effectiveness of this approach, coupling between single-slot and twin-slot elements separated by λ0/2 was analysed. The coupling between the two single-slot antennas was S21 = -30.2 dB. For the case of two twin-slot antennas, the coupling was found to be -37.8 dB, 7.6 dB below that of the single-slot antennas. The phase cancellation effect of surface waves is significant in reducing coupling between two twin-slot antennas, in addition to minimising power loss into substrate modes. A memory optimised implementation of the FDTD method with the Berenger Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) was used for the numerical analysis.},
keywords={},
doi={},
ISSN={},
month={December},}
Copy
TY - JOUR
TI - Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions
T2 - IEICE TRANSACTIONS on Electronics
SP - 1608
EP - 1613
AU - Seppo SAARIO
AU - Yongxi QIAN
AU - Eikichi YAMASHITA
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E80-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 1997
AB - A rigorous analysis of coupling between two twin-slot antennas using the Finite Difference Time Domain (FDTD) method is reported for the first time. The Phase Cancellation Effect (PGE) is used to reduce the coupling due to the TM0 surface wave mode between the Coplanar Waveguide (CPW) fed cascade-connected twin-slot antennas. To confirm the effectiveness of this approach, coupling between single-slot and twin-slot elements separated by λ0/2 was analysed. The coupling between the two single-slot antennas was S21 = -30.2 dB. For the case of two twin-slot antennas, the coupling was found to be -37.8 dB, 7.6 dB below that of the single-slot antennas. The phase cancellation effect of surface waves is significant in reducing coupling between two twin-slot antennas, in addition to minimising power loss into substrate modes. A memory optimised implementation of the FDTD method with the Berenger Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) was used for the numerical analysis.
ER -
English
