Bandwidth-Enhanced Metamaterial Absorber Using Electric Field-Driven Lc Resonator For Airborne Radar Applications

2013 ◽  
Vol 55 (9) ◽  
pp. 2131-2137 ◽  
Author(s):  
Somak Bhattacharyya ◽  
Saptarshi Ghosh ◽  
Kumar Vaibhav Srivastava
Keyword(s):  
Electric Field ◽  
Metamaterial Absorber ◽  
Airborne Radar ◽  
Lc Resonator ◽  
Radar Applications

An ultrathin penta-band polarization-insensitive compact metamaterial absorber for airborne radar applications

2015 ◽  
Vol 57 (11) ◽  
pp. 2519-2524 ◽  
Author(s):  
Anamiya Bhattacharya ◽  
Somak Bhattacharyya ◽  
Saptarshi Ghosh ◽  
Devkinandan Chaurasiya ◽  
Kumar Vaibhav Srivastava
Keyword(s):  
Metamaterial Absorber ◽  
Airborne Radar ◽  
Polarization Insensitive ◽  
Radar Applications

Parametric adaptive matched filter for airborne radar applications

2000 ◽  
Vol 36 (2) ◽  
pp. 677-692 ◽  
Author(s):  
J.R. Roman ◽  
M. Rangaswamy ◽  
D.W. Davis ◽  
Qingwen Zhang ◽  
B. Himed ◽  
...  
Keyword(s):  
Matched Filter ◽  
Airborne Radar ◽  
Radar Applications ◽  
Adaptive Matched Filter

scholarly journals Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Yijun Cai ◽  
Shuangluan Li ◽  
Yuanguo Zhou ◽  
Xuanyu Wang ◽  
Kai-Da Xu ◽  
...  
Keyword(s):  
Electric Field ◽  
Surface Plasmon ◽  
Infrared Region ◽  
Metamaterial Absorber ◽  
Black Phosphorus ◽  
Dual Band ◽  
Polarization Sensitivity ◽  
Surface Plasmon Resonances ◽  
Field Distributions ◽  
Plasmon Resonances

AbstractWe numerically propose a dual-band absorber in the infrared region based on periodic elliptical graphene-black phosphorus (BP) pairs. The proposed absorber exhibits near-unity anisotropic absorption for both resonances due to the combination of graphene and BP. Each of the resonances is independently tunable via adjusting the geometric parameters. Besides, doping levels of graphene and BP can also tune resonant properties effectively. By analyzing the electric field distributions, surface plasmon resonances are observed in the graphene-BP ellipses, contributing to the strong and anisotropic plasmonic response. Moreover, the robustness for incident angles and polarization sensitivity are also illustrated.

Compact Triple Band Metamaterial Antenna Based on Modified Electric-field Coupled-LC Resonator

2014 ◽  
Vol 70 (1) ◽  
Author(s):  
B. D. Bala ◽  
M. K. A. Rahim ◽  
N. A. Murad ◽  
M. H. Mokhtar
Keyword(s):  
Electric Field ◽  
Magnetic Moments ◽  
Capacitive Coupling ◽  
Structural Modifications ◽  
Unit Cell Size ◽  
Metamaterial Antenna ◽  
Resonance Frequencies ◽  
Lc Resonator ◽  
Strip Lines ◽  
Triple Band

In this paper, a compact triple band metamaterial antenna based on modified electric-field coupled (ELC) resonator is presented. The modification to the conventional ELC is achieved by the use of strip lines to enhance the capacitive coupling of the capacitive gaps and a stub printed at the back of the resonator. The unit cell’s macroscopic parameters were not affected by the structural modifications as the electric moment dominates the magnetic moments in the ELC response. By employing this structure, three resonance frequencies at 1.65 GHz, 3.5 GHz and 5.8 GHz are obtained. The overall size of the antenna is 40 mm × 45 mm (0.22λo × 0.24λo) with the unit cell size of 12 mm × 11 mm (0.066λo × 0.060λo) at 1.65 GHz. The peak gain of 2.10 dBi and radiation efficiency of 97% is obtained at 5.8 GHz. The proposed antenna has advantages of being compact, small and suitable for WiMAX (3.5 GHz) and WLAN (5.8 GHz) applications. The simulated and measured return losses and the radiation patterns are presented and compared.  

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