Results 211 to 220 of about 16,124 (251)

RCS reduction of dihedral corners

IEEE Transactions on Antennas and Propagation, 1977
Corner reflectors are inadvertently formed by many surfaces on ships and military ground vehicles and can be dominant contributors to the radar cross section (RCS). The monostatic return from such structures can be reduced by ensuring that flat surfaces never meet at right angles.
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RCS reduction of a composite AMC structure

IEEE iWEM2011, 2011
We studied the RCS reduction characteristics of a checkerboard structure configured with two different AMC unit cells with 180° reflection phase difference near its resonance frequency. A simple array factor formula is adopted to show the philosophy of the physical mechanism.
Yueh-Lin Tsai, Ruey-Bing Hwang
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Broadband RCS reduction of antenna with AMC

2015 IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2015
Planar periodic metallic arrays behave as artificial magnetic conductor (AMC) surfaces when placed on a grounded dielectric substrate and they introduce a zero degrees reflection phase shift to incident waves. A novel gradually concentric ring arrangement AMC (GCRA-AMC) applied to the broadband RCS reduction is presented.
Fuwei Wang, Shuxi Gong, Shuai Zhang
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RCS Prediction and Reduction

2009
This chapter contains sections titled: Introduction Target Reflectivity and RCS Reduction Time-Domain RCS Simulations Sample RCS Simulators Applications RCS Measurements Conclusions and Discussion ...
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Antenna RCS Reduction

1998
Viewed nose-on, a typical fighter aircraft has a radar cross section (RCS) on the order of one square meter. A similarly viewed low observable aircraft may have an RCS of only 0.01 square meter. Unless special RCS reduction measures are employed, even a comparatively small planar array antenna can have an RCS of up to several thousand square meters ...
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Wideband RCS Reduction Matesurface Design

2019 IEEE 6th International Symposium on Electromagnetic Compatibility (ISEMC), 2019
In this research, a new artificial magnetic conductor (AMC) surface based on optimized multielement phase cancellation (OMEPC) is proposed for wideband RCS reduction. The square ring patch was chosen as the basic AMC element of the metasurface for its reflection phase change characteristics.
Chenyang Zhang, Jianxun Su, Zengrui Li
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Aperiodic Metasurface for Broadband RCS Reduction

2020 URSI Regional Conference on Radio Science ( URSI-RCRS), 2020
In this paper, a straightforward design technique is presented for designing broadband, polarization-insensitive meta-surface for wideband radar cross-section (RCS) reduction. Two different unit cell structures, one dual resonance unit cell composed of a circular patch and circular loop and, a square patch are selected for enhancing the phase bandwidth
Shraddha Choudhary, Kirankumar R. Hiremath   +1 more
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An ultra-wideband metasurface for RCS reduction

2018 International Applied Computational Electromagnetics Society Symposium - China (ACES), 2018
In this paper, split ring unit cells are proposed and designed for ultra-wideband RCS reduction. The split ring unit cell converts the incidence wave to its cross-polarization in wide bandwidth, and most importantly, the cross-polarized reflection phase and amplitude can be separately controlled by the cell geometry and rotation angle.
Y. L. Shu, Y. H. Zhang, S. Y. He, G. Q. Zhu, K. Chen, J. N. Yin   +5 more
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RCS reduction of Antipodal Vivaldi Antenna

2015 Asia-Pacific Microwave Conference (APMC), 2015
A novel Antipodal Vivaldi Antenna with low radar cross section (RCS) is proposed in this paper. By using flat corrugated slotline to replace exponential gradient curve on both sides of the antenna, the RCS in the endfire direction can be reduced in the operating band of 4.3 GHz-12 GHz when the incident wave is perpendicular to the antenna plane.
Tao Luo, Zaiping Nie
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The RCS reduction of microstrip patch antennas

Tenth International Conference on Antennas and Propagation (ICAP), 1997
The radar cross section (RCS) of microstrip patch antennas is studied. Various RCS reduction techniques are described. These are investigated using finite element method codes. The results of a series of compact range RCS measurements are discussed. Good agreement between measured and computed RCS is observed.
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