scholarly journals Design and radar cross section reduction experimental verification of phase gradient meta-surface based on cruciform structure

2015 ◽  
Vol 64 (16) ◽  
pp. 164102
Author(s):  
Wu Chen-Jun ◽  
Cheng Yong-Zhi ◽  
Wang Wen-Ying ◽  
He Bo ◽  
Gong Rong-Zhou
Keyword(s):  
Cross Section ◽  
Experimental Verification ◽  
Radar Cross Section ◽  
Phase Gradient ◽  
Cruciform Structure

scholarly journals Design and experimental verification of a two-dimensional phase gradient metasurface used for radar cross section reduction

2014 ◽  
Vol 63 (8) ◽  
pp. 084103
Author(s):  
Li Yong-Feng ◽  
Zhang Jie-Qiu ◽  
Qu Shao-Bo ◽  
Wang Jia-Fu ◽  
Chen Hong-Ya ◽  
...  
Keyword(s):  
Cross Section ◽  
Experimental Verification ◽  
Radar Cross Section ◽  
Two Dimensional ◽  
Phase Gradient

Reflecting Phase-Gradient Metasurface for Radar Cross Section Reduction

2021 ◽  
Author(s):  
Khushboo Singh ◽  
Muhammad U. Afzal ◽  
Ali Lalbakhsh ◽  
Karu P. Esselle
Keyword(s):  
Cross Section ◽  
Radar Cross Section ◽  
Phase Gradient

Ultra-wideband radar cross section reduction using amplitude and phase gradient modulated surface

2020 ◽  
Vol 128 (20) ◽  
pp. 205301
Author(s):  
Yousef Azizi ◽  
Mohammad Soleimani ◽  
Seyed Hassan Sedighy
Keyword(s):  
Cross Section ◽  
Radar Cross Section ◽  
Ultra Wideband ◽  
Phase Gradient ◽  
Wideband Radar

Experimental verification of the relation between the radar cross section and the list angle of surface vessels

2006 ◽  
Vol 48 (11) ◽  
pp. 2237-2241 ◽  
Author(s):  
J. F. Pérez Ojeda ◽  
J. L. Rodríguez ◽  
I. García-Tuñón ◽  
F. Obelleiro
Keyword(s):  
Cross Section ◽  
Experimental Verification ◽  
Radar Cross Section ◽  
Surface Vessels

scholarly journals Low-Cost, Low-Profile Wide-Band Radar Cross Section Reduction Using Dual-Concentric Phase Gradient Modulated Surface

Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1552
Author(s):  
Yousef Azizi ◽  
Mohammad Soleimani ◽  
Seyed Hasan Sedighy ◽  
Ladislau Matekovits
Keyword(s):  
Cross Section ◽  
Low Cost ◽  
Wide Band ◽  
Radar Cross Section ◽  
Phase Gradient ◽  
Full Wave ◽  
Low Profile ◽  
Anomalous Reflection ◽  
Measurement Results ◽  
Unit Cells

Design criteria of low-cost, dual-concentric metasurface possessing wideband phase gradient (PG) are introduced. The radar cross-section reduction (RCSR) is explained by anomalous reflection that characterizes the superficial planar. The geometry consists of two single band RCSR modulated surfaces (MSs) that are triggered in each other. Each MS is built-up of square patch (SP) unit cells configured as a modulation structure to realize PG that causes anomalous reflection and monostatic RCSR behavior. Applying sinusoidal modulation to the sequence of the SP unit cells leads to the formation of PG along the surface and hence the intensity of the reflected wave is reduced for the broadside direction (θr=0∘). The proposed structure fabricated on a 0.8 mm thin FR-4 substrate extends over 249 × 249 mm2. It achieves a wide RCSR bandwidth from 20.9 GHz to 45.7 GHz (i.e., relative bandwidth of 75%) as designed in Dassault Systèmes (CST) Microwave Studio as a full-wave simulator and confirmed by the measurement results.

scholarly journals Quarter Wavelength Fabry–Perot Cavity Antenna with Wideband Low Monostatic Radar Cross Section and Off-Broadside Peak Radiation

2021 ◽  
Vol 11 (3) ◽  
pp. 1053
Author(s):  
Hassan Umair ◽  
Tarik Bin Abdul Latef ◽  
Yoshihide Yamada ◽  
Tayyab Hassan ◽  
Wan Nor Liza Binti Wan Mahadi ◽  
...  
Keyword(s):  
Cross Section ◽  
Patch Antenna ◽  
Ground Plane ◽  
Radar Cross Section ◽  
Beam Deflection ◽  
Radiation Beam ◽  
Phase Gradient ◽  
Mesh Structure ◽  
Gain Enhancement ◽  
Fabry Perot

Since antennas are strong radar targets, their radar cross section (RCS) reduction and radiation enhancement is of utmost necessity, particularly for stealth platforms. This work proposes the design of a Fabry–Perot Cavity (FPC) antenna which has wideband low monostatic RCS. While in the transmission mode, not only is gain enhancement achieved, but radiation beam is also deflected in the elevation plane. Moreover, the design is low-profile, i.e., the cavity height is ~λ/4. A patch antenna designed at 6 GHz serves as the excitation source of the cavity constructed between the metallic ground plane and superstrate. The superstrate structure is formed with absorptive frequency selective surface (AFSS) in conjunction with dual-sided partially reflective surface (PRS). Resistor loaded metallic rings serve as the AFSS, while PRS is constructed from inductive gradated mesh structure on one side to realize phase gradient for beam deflection; the other side has fixed capacitive elements. Results show that wideband RCS reduction was achieved from 4–16 GHz, with average RCS reduction of about 8.5 dB over the reference patch antenna. Off-broadside peak radiation at −38° was achieved, with gain approaching ~9.4 dB. Simulation and measurement results are presented.

Wideband radar cross section reduction using two-dimensional phase gradient metasurfaces

2014 ◽  
Vol 104 (22) ◽  
pp. 221110 ◽  
Author(s):  
Yongfeng Li ◽  
Jieqiu Zhang ◽  
Shaobo Qu ◽  
Jiafu Wang ◽  
Hongya Chen ◽  
...  
Keyword(s):  
Cross Section ◽  
Radar Cross Section ◽  
Two Dimensional ◽  
Phase Gradient ◽  
Wideband Radar
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