low radar cross-section
An Analysis Of DS-UWB Vivaldi Antenna With Low Radar Cross Section (RCS) For Stealth Purposes
... of radar detection, the distribution of electromagnetic antenna system's fire control in this area is normally very strong, which is a result of the importance of stealth antenna ...
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Radar Cross Section Reduction Techniques using Metamaterials
... a low relative dielectric permittivity substrate and optimizing the design of unit cell additional reduction in cost is attained In AMC structure every unit cell is represented as a distributed parallel LC network ...
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Calculating Radar Cross Section of Lossy Targets Using the Surface Impedance Approach
... are: Low-frequency scattering, resonant scattering and high frequency ...with radar cross section, or RCS as it is commonly referred to in literature, which is a fictitious area of the target ...
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Optimization Study of Radar Cross Section Reduction by an Inhomogeneous Collisional Magnetized Plasma
... of radar transmitted waves in stealth technology. But, low absorption bandwidth, significant body weight, and strong reflections in certain directions are a number of limitations of polymeric radar ...
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Ultra Wideband Antenna with Reduced Radar Cross Section
... An octagonal ultra wideband antenna with reduced RCS has been presented. The proposed antenna operates in the frequency range of 3.6GHz to 16GHz with impedance bandwidth of more than 115%. The antenna was optimized with ...
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Analysis and Synthesis of Radar Cross Section of Array Antennas
... such as microstrip patch array antennas [2–6], waveguide slot array antennas [7–9], and conformal array antennas [9–11]. However, optimizing the RCS of array antennas with the above numerical algorithm will be a complex ...
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Patch Shape Influence Upon Radar Cross Section of a Cylindrical Microstrip Antenna
... the radar cross section (RCS) of a cylindrical microstrip antenna (CMA) is ...the low-frequency end compared to a cylindrical rectangular ...
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Reconfigurable Radar Absorbing Structure Applied to the Antenna Radar Cross Section Reduction
... The RAS reflector#1 was fabricated. The reflection coefficient of the reflector with OFF and ON-state diodes was simulated by using the analysis software HFSS 13 by ANSYS. Fig. 5 shows the reflection coefficient result of the ...
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Estimation of Radar Cross Section of a Target under Track
... The table also shows that MED outperforms ML(N = 5) and ML(W = 7) for higher signal strength, but it is less e ff ective than ML(N = 10) and ML(W = 10). It should be remarked that MED failed to estimate σ for SNR = 8 (the ...
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Reflectarray Antenna with Radar Cross-Section Reduction
... yellow=-10 dB, green=-30 dB, blue=-40 dB) Figure 4 to Figure 7 show that the current distribution on the concentric ring array can be modified by the size, and hence, the resonance of the ground plane rings. When the ...
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Reflectarray antenna with radar cross section reduction
... the low RCS reflectarray is shown to be up to 10 dB higher, and there is evidence of null filling because of the phase errors which cause defocusing of the ...to radar is significantly ...
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Low-Frequency Sea Surface Radar Doppler Echo
... normalized radar backscatter cross section (NRCS) and Doppler velocity (DV) exhibit energy at low frequencies (LF) below the surface wave ...of radar DV is quasi-Gaussian suggesting ...
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RADAR CROSS SECTION PREDICTION TECHNIQUES AND THEIR APPLICATIONS
... Various RCS prediction techniques have been discussed. The relative advantages and disadvantages of each prediction method are presented in detail. It has been concluded that not a single RCS prediction method is ...
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Determination of interrogating frequencies to maximize electromagnetic backscatter from objects with material coatings
... the radar by, say, 10 % from evader’s design ...the radar cross section for both high and low frequencies at the same ...frequency radar, operating for example at interrogating ...
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Radar Cross Section Reduction Property of High Impedance Surface on a Lossy Dielectric
... Since the pioneering work of high impedance surfaces (HIS) in 1999 by Daniel Sievenpiper [1], it found a lot of applications because of its artificial magnetic conductor (AMC) property at a particular frequency. It ...
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Implementation of Stealth Tech on Tank
... signature low. I.e. To hide from the eye of enemy. After development of Radar system everything gets ...as Low observable ...of Radar, Infrared and other detection Method’s ...
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RADAR CROSS SECTION PREDICTION FOR DIFFERENT OBJECTS USING MAT LAB AND RADAR CROSS SECTION (RCS) REDUCTION
... The radar absorbing materials reduce the energy reflected back to the radar by means of ...absorption. Radar energy is absorbed through one or more of several mechanisms, which may involve the ...
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Overview of RCS Extrapolation Techniques to Aircraft Targets
... “Radar cross section measurements using near-field radar imaging,” IEEE ...field radar cross-section from near field measurements,” IEEE ...
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3-D SAR Imaging Based RCS Measurement Technique with Fixed Transmitter
... Abstract—To avoid the spatial variation of scattering characteristic effect, a three-dimensional synthetic aperture radar (3-D SAR) imaging based radar cross section (RCS) extraction technique ...
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A New Theorem Concerning Scattering of Electromagnetic Waves in Multilayered Metamaterial Spherical Structures
... A new theorem has been proved in this paper, for incidence of plane waves on a multilayer spherical structure with PEC, metamaterial or dielectric core coated with metamaterials. The interchanges DPS↔DNG and ENG↔MNG does ...
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