ACES Publication Search
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Simulation and Analysis of HEMP Coupling Effect on a Wire Inside an Apertured Cylindrical Shielding CavityS. T. Song, H. Jiang, Y. L. Huang
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ACES Journal Paper | |
Year: 2012      Volume: 27      Number: 6 | |
Click here to download PDF File Size: 905 KB | |
High altitude nuclear electromagnetic
pulse (HEMP) can damage electronic equipments
of radar and communication systems. Back door
coupling is one of the main ways of HEMP
attacks on the electronic devices. In this paper, the
three-dimensional (3D) electromagnetic (EM)
simulation software MicroStripes7.5, which is
based on the transmission line matrix (TLM)
method, are employed to investigate the HEMP
coupling effect on a wire located inside a
cylindrical shielding cavity having one or few
apertures. The EM models of the wire and the
apertured shielding cavity are constructed, and the
induced wire currents through the aperture of
cavity are simulated. By comparing the simulation
results of the wire with and without shield of the
cavity, the shielding effectiveness (SE) is
calculated. Further, the effects on induced wire in
various cases are compared and analyzed,
including single-aperture and multiple-aperture,
different incident angles, polarization angles, and
wire locations. Also, the cylindrical cavity is
compared with the rectangular cavity. |
ACES Journal August 2015 FullACES
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ACES Journal Paper | |
Year: 2015      Volume: 30      Number: 8 | |
Click here to download PDF File Size: 26076 KB | |
ACES |
Calculation and Analysis of Shielding Effectiveness of the Rectangular Enclosure with AperturesC. C. Wang, C. Q. Zhu, X. Zhou, Z. F. Gu
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ACES Journal Paper | |
Year: 2013      Volume: 28      Number: 6 | |
Click here to download PDF File Size: 494 KB | |
Based on transmission line theory, an
approach which combines the analytical model
developed by Robinson et al. and the model which
analyses the shielding effectiveness (SE) of
enclosure with an off-centre aperture or aperture
array is presented. The model is more general than
other methods and includes the incident wave with
varied polarization angles and incident angles. It is
quicker to calculate the SE with this model, which
on the other hand enables to investigate the effect
of important design parameters on SE. This model
is validated by comparing the SE predictions with
those from literatures. Different aspects’ effect on
the SE are investigated such as aperture dimension,
enclosure dimension, position of observation point,
number of apertures, polarization angles, and
incident angles, etc. |
ACES Journal November 2012ACES
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ACES Journal Paper | |
Year: 2012      Volume: 27      Number: 11 | |
Click here to download PDF File Size: 4794 KB |
ACES Journal November 2012 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2012      Volume: 27      Number: 11 | |
Click here to download PDF File Size: 632 KB |
ACES Journal January 2014 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2014      Volume: 29      Number: 1 | |
Click here to download PDF File Size: 24 KB | |
ACES |
Lowpass Filter Design Based on Microstrip Meander Line with HDGSA. S. Al-Zayed, M. B. Asad Allah, S. F. Mahmoud
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ACES Journal Paper | |
Year: 2014      Volume: 29      Number: 6 | |
Click here to download PDF File Size: 1152 KB | |
A microstrip meander line with a single
H-shaped Defected Ground Structure (HDGS) is
employed to design a novel compact lowpass filter
with sharp roll off and wide stop band. Two
parametric studies were conducted to analyze the
sensitivity of the HDGS position and the size
effects on the filter response. The design is
fabricated to have a 6 GHz cutoff frequency using
Rogers TMM 10i substrate, with an area of 7.6 x 6
mm2
. The measured results are in a good
agreement with simulation prediction. |
ACES Journal June 2014 FullACES
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ACES Journal Paper | |
Year: 2014      Volume: 29      Number: 6 | |
Click here to download PDF File Size: 14346 KB | |
ACES |
Wide Bandwidth Endfire Antenna with Log-Period DirectorsY. Sun, G. Wen, H. Jin, P. Wang, Y. Huang, J. Li
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ACES Journal Paper | |
Year: 2015      Volume: 30      Number: 11 | |
Click here to download PDF File Size: 957 KB | |
This paper presents the design and
implementation of a novel wide bandwidth endfire
antenna with log-periodic directors. The feeding structure
of the proposed antenna includes a balun which is
formed using a pair of microstrip-to-slotline transitions.
The proposed antenna has three resonant frequencies in
the operating frequency band. Both simulation and
measurement results show that the operating frequency
band of the antenna for S11 < -10 dB covers the wide
bandwidth (5 GHz – 10 GHz), and the relative bandwidth
is 67%. Far field measurements in azimuth plane and
elevation plane show that the radiation patterns are
stable and end fire within the operating band at frequencies
of 5 GHz, 7 GHz, 8 GHz, 10 GHz. The proposed antenna
radiates a well-defined endfire beam, with a front-to-back
ratio > 18 dB and cross polarization level below -28 dB.
The dimension of the proposed antenna is 26 mm × 27 mm.
Good return loss and radiation pattern characteristics
are obtained and measured results are presented to validate
the usefulness of the proposed antenna structure for
wide bandwidth endfire applications. |
ACES Journal August 2015 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2015      Volume: 30      Number: 8 | |
Click here to download PDF File Size: 104 KB | |
ACES |
A Novel Compact UWB Monopole Antenna with Triple Band-Notched Characteristics with EBG Structure and Two Folded V-slot for MIMO/Diversity ApplicationsA. Mousazadeh, GH. Dadashzadeh
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ACES Journal Paper | |
Year: 2016      Volume: 31      Number: 1 | |
Click here to download PDF File Size: 1337 KB | |
A novel compact, ultrawideband (UWB)
monopole antenna with triple band-notched characteristics
are presented for MIMO/diversity applications. Triple
band-notched function is achieved by inserting two
folded v-slot on the radiation patch and two modified
mushrooms-like EBG structure above ground plane on
either side of feed line. The designed MIMO antenna has
a small size compared to the previous similar designs.
With the purpose of mutual coupling reduction between
antenna elements, two rows of modified mushroom-like
EBG structures are inserted to suppress the effect of the
surface wave between antenna elements. The MIMO
performance of the proposed antenna is studied through
mutual coupling (S12), envelope correlation coefficient
(ECC) and diversity gain. |
Mutual Coupling Reduction Between Patch Antenna Array Elements Using Metamaterial Z shaped ResonatorsO. Tabbabi, M. Labidi, F. Choubani, J. David
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ACES Conference Paper | |
Year: 2016 - S66 Metamaterials Applications in RF Circuits I | |
Click here to download PDF File Size: 335 KB | |
Modern wireless communication systems
require compact design, low cost and simple struc-
ture antennas to insure reliability, agility, and high
eciency characteristics. |
ACES Journal January 2016 FullACES
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ACES Journal Paper | |
Year: 2016      Volume: 31      Number: 1 | |
Click here to download PDF File Size: 10132 KB | |
ACES |
ACES Journal September 2017 Front/Back Matter | |
ACES Journal Paper | |
Year: 2017      Volume: 32      Number: 9 | |
Click here to download PDF File Size: 339 KB | |
ACES |
ACES Journal September 2017 Full | |
ACES Journal Paper | |
Year: 2017      Volume: 32      Number: 9 | |
Click here to download PDF File Size: 12831 KB | |
ACES |
ACES Journal July 2018 Full | |
ACES Journal Paper | |
Year: 2018      Volume: 33      Number: 7 | |
Click here to download PDF File Size: 16338 KB | |
ACES |
Simulation and Analysis of HEMP Coupling Effect on Wires Inside a Cylindrical Shielding Cavity with AperturesS. Song, H. Jiang, Y. Huang
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ACES Conference Paper | |
Year: 2011 - Electromagnetic Simulation using Wipl-D | |
Click here to download PDF File Size: 229 KB | |
High altitude nuclear electromagnetic pulse (HEMP) can damage electronic equipments of radar and communication systems. Back door coupling is one of the main ways of HEMP attacks on the electronic devices. In this paper, using the transmission line matrix (TLM) method, based on the three-dimensional electromagnetic (EM) simulation software MicroStripes 7.5, we investigate the problem of the HEMP coupling effect on wires inside a shielding cavity with apertures. The EM model of a wire and a cylindrical shielding cavity with apertures is constructed, and the induced wire circuits through apertures of cavity is simulated and analyzed. By comparing the simulation results of wire with and without shield of the cavity, respectively, the shielding effectiveness is obtained. Further, the affect of single-aperture and multiple-aperture on the induced wire circuits is compared and analyzed. |
ACES Journal February 2013 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2013      Volume: 28      Number: 2 | |
Click here to download PDF File Size: 632 KB |
ACES March 2012 Full JournalACES
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ACES Journal Paper | |
Year: 2012      Volume: 27      Number: 3 | |
Click here to download PDF File Size: 4510 KB |
ACES March 2012 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2012      Volume: 27      Number: 3 | |
Click here to download PDF File Size: 601 KB |
A CMOS Broadband Low-Noise Amplifier with Flat Gain Response for Ultra-Wideband ApplicationsS. Wang, W.-H. Yen
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ACES Conference Paper | |
Year: 2016 - S39 Circuits Design | |
Click here to download PDF File Size: 183 KB | |
In this paper, a broadband distributed
amplifier (DA) is presented. |
ACES Journal June 2013 Front/Back MatterACES
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ACES Journal Paper | |
Year: 2013      Volume: 28      Number: 6 | |
Click here to download PDF File Size: 613 KB |