Fast and accurate radar cross-section computation over a broad frequency band using the best uniform rational approximation

2008 ◽  
Vol 2 (2) ◽  
pp. 200-204 ◽  
Author(s):  
M.S. Chen ◽  
Z.X. Huang ◽  
W. Sha ◽  
X.L. Wu
Keyword(s):  
Cross Section ◽  
Frequency Band ◽  
Rational Approximation ◽  
Radar Cross Section ◽  
Broad Frequency Band

77 GHz offset reflectarray for FOD detection on airport runways

2012 ◽  
Vol 4 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Karim Mazouni ◽  
Christian Pichot ◽  
Jérôme Lantéri ◽  
Jean-Yves Dauvignac ◽  
Claire Migliaccio ◽  
...  
Keyword(s):  
Cross Section ◽  
Frequency Band ◽  
Detection System ◽  
Radar Cross Section ◽  
High Gain ◽  
Foreign Object ◽  
Maximum Gain ◽  
Aperture Efficiency ◽  
Reflectarray Antenna ◽  
77 Ghz

In designing a Foreign Object Debris (FOD) detection system on airport runways, this paper deals with the performance of a 77 GHz reflectarray antenna (RA). Debris may be very small and have low radar cross section (RCS), leading to design a high gain primary-fed offset RA. To minimize the aperture blockage, the main radiation lobe is in the specular direction. The antenna has a maximum gain of 40 dBi and aperture efficiency of 50% over the frequency band 76–77 GHz. First measurements using a 77 GHz radar module were carried out on pavement.

scholarly journals Simulations and measurements of a radar cross section of a Boeing 747-200 in the 20-60 MHz frequency band

Radio Science ◽  
2003 ◽  
Vol 38 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
A. David ◽  
C. Brousseau ◽  
A. Bourdillon
Keyword(s):  
Cross Section ◽  
Frequency Band ◽  
Radar Cross Section

Wideband radar cross section reduction of a microstrip antenna with square slots

2019 ◽  
Vol 11 (4) ◽  
pp. 341-350 ◽  
Author(s):  
Zhang Jiakai ◽  
Zheng Qi ◽  
Li Haixiong ◽  
Ding Jun ◽  
Guo Chenjiang
Keyword(s):  
Cross Section ◽  
Frequency Band ◽  
Microstrip Antenna ◽  
Oblique Incidence ◽  
Radar Cross Section ◽  
Frequency Range ◽  
Band Frequency ◽  
Wideband Antenna ◽  
Wideband Radar

AbstractThis paper proposes a new radar cross section (RCS) reduced microstrip antenna incorporating 475 square slots on the patch. The proposed antenna achieves wideband RCS reduction with radiation performance sustained. The modified and reference antenna are simulated and analyzed in radiating and scattering mode, respectively. Prototypes of two antennas are fabricated and measured. Compared with the reference antenna, the simulated result shows the modified antenna RCS reduced in the frequency range 1.1–2.6 GHz, which contains the in-band and out-of-band frequency band simultaneously. And the maximum RCS reduction is 7.6dB at the frequency of 1.19GHz. Besides, the modified antenna can achieve the antenna RCS reduction in the case of oblique incidence. The prototypes of two antennas are fabricated and measured, and the accuracy of the simulation is proved by the measured result. Due to its advantages of simplicity, wideband RCS reduced, broad-angle RCS reduced, the method in this paper is suitable for wideband antenna RCS reduction in space-limited environment.

scholarly journals Wideband RCS Reduction Using Coding Diffusion Metasurface

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2708 ◽  
Author(s):  
Ali ◽  
Li ◽  
Khan ◽  
Yi ◽  
Chen
Keyword(s):  
Cross Section ◽  
Phase Difference ◽  
Frequency Band ◽  
Optimization Algorithm ◽  
Radar Cross Section ◽  
Reduction Technique ◽  
Metallic Plate ◽  
Random Optimization ◽  
Unit Cells ◽  
Working Frequency

This paper presents a radar cross-section (RCS) reduction technique by using the coding diffusion metasurface, which is optimised through a random optimization algorithm. The design consists of two unit cells, which are elements ‘1’ and ‘0’. The reflection phase between the two-unit cells has a 180° ± 37° phase difference. It has a working frequency band from 8.6 GHz to 22.5 GHz, with more than 9 dB RCS reduction. The monostatic RCS reduction has a wider bandwidth of coding diffusion metasurface as compared to the traditional chessboard metasurface. In addition, the bistatic performance of the designed metasurfaces is observed at 15.4 GHz, which shows obvious RCS reduction when compared to a metallic plate of the same size. The simulated and measured result shows the proficiency of the designed metasurface.

Radar Cross Section

2004 ◽  
Author(s):  
Eugene F. Knott ◽  
John F. Shaeffer ◽  
Michael T. Tuley
Keyword(s):  
Cross Section ◽  
Radar Cross Section
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