Future concepts for wide band antenna radar systems

2008 ◽  
Author(s):  
C. Baker
Keyword(s):  
Wide Band ◽  
Radar Systems ◽  
Future Concepts

Ultra-wide-band noise radar systems

SPIE Newsroom ◽  
2012 ◽  
Author(s):  
Ram Narayanan
Keyword(s):  
Wide Band ◽  
Ultra Wide Band ◽  
Radar Systems ◽  
Band Noise ◽  
Noise Radar ◽  
Wide Band Noise

Robust target identification in white Gaussian noise for ultra wide-band radar systems

1998 ◽  
Vol 46 (12) ◽  
pp. 1817-1823 ◽  
Author(s):  
J.E. Mooney ◽  
Zhi Ding ◽  
L.S. Riggs
Keyword(s):  
Gaussian Noise ◽  
Target Identification ◽  
Wide Band ◽  
White Gaussian Noise ◽  
Ultra Wide Band ◽  
Radar Systems

Wide-band gain enhancement of a pyramidal horn antenna with a 3D-printed epsilon-positive and epsilon-near-zero metamaterial lens

2020 ◽  
pp. 1-9
Author(s):  
Nesem Keskin ◽  
Sinan Aksimsek ◽  
Nurhan Turker Tokan
Keyword(s):  
Low Cost ◽  
Wide Band ◽  
Horn Antenna ◽  
High Gain ◽  
Gain Enhancement ◽  
Radar Systems ◽  
Pyramidal Horn ◽  
3D Printed ◽  
Focused Beams ◽  
Epsilon Near Zero

Abstract In this article, we present a simple, low-cost solution for the gain enhancement of a conventional pyramidal horn antenna using additive manufacturing. A flat, metamaterial lens consisting of three-layer metallic grid wire is implemented at the aperture of the horn. The lens is separated into two regions; namely epsilon-positive and epsilon-near-zero (ENZ) regions. The structure of the ENZ region is constructed accounting the variation of relative permittivity in the metamaterial. By the phase compensation property imparted by the metamaterial lens, more focused beams are obtained. The simulated and measured results clearly demonstrate that the metamaterial lens enhances the gain over an ultra-wide frequency band (10–18 GHz) compared to the conventional horn with the same physical size. A simple fabrication process using a 3D printer is introduced, and has been successfully applied. This result represents a remarkable achievement in this field, and may enable a comprehensive solution for satellite and radar systems as a high gain, compact, light-weighted, broadband radiator.

scholarly journals Tree shaped fractal antenna with multiband characteristics

2017 ◽  
Vol 7 (1.1) ◽  
pp. 333 ◽  
Author(s):  
B T P Madhav ◽  
V Subba Reddy ◽  
D Rajasekar Reddy ◽  
K Ravi Sankar ◽  
E V.S.Harsha Ramanujan ◽  
...  
Keyword(s):  
Weather Forecasting ◽  
Ground Plane ◽  
Wide Band ◽  
Substrate Material ◽  
Fractal Antenna ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Radar Systems ◽  
Impedance Characteristics ◽  
Multiple Band

A tree shaped fractal antenna with U shaped slot and W-shaped slot has been designed and analyzed in this article by using ANSYS elec-tromagnetic desktop 17. The proposed antenna is analyzed taking FR4 substrate is taken as the substrate material. The proposed antenna exhibits multiband characteristics (2.75-3.17GHz, 4.1-4.8GHz, 5.1-5.3GHz and 5.4-6.3GHz, 7.21-12.8GHz) in the Ultra-wide band region. The path that is radiating by superposition of the rectangular patches and multiple-band operating frequency is obtained by increasing the U-shapes slots and w-shaped slot on the patch. The improvement in the impedance characteristics between the adjacent frequencies is achieved by using defected ground structure (DGS) on the ground plane as to cover the region of UWB application (3.1-10.6GHz). The proposed antenna works in the applications like Wi-Max, Weather forecasting RADAR systems and WLAN. 

An ultra-wide band exponential flared tem horn antenna for impulse radar systems

2015 ◽  
Author(s):  
Lizhong Song Lizhong Song ◽  
Yuming Nie Yuming Nie
Keyword(s):  
Wide Band ◽  
Horn Antenna ◽  
Ultra Wide Band ◽  
Radar Systems ◽  
Tem Horn

Design and Experimental Research on a Miniaturized Archimedean Spiral Antenna

2012 ◽  
Vol 229-231 ◽  
pp. 1618-1621
Author(s):  
Ming Jiang ◽  
Li Zhong Song
Keyword(s):  
Experimental Research ◽  
Wide Band ◽  
Electronic Systems ◽  
Frequency Range ◽  
Spiral Antenna ◽  
Archimedean Spiral ◽  
Wide Beam ◽  
Radar Systems ◽  
Operating Frequency Range ◽  
Meander Line

The Archimedean spiral (ARSP) antenna is widely used in many wide band electronic systems due to its good radiation performances. This paper designed and fabricated a specific planar ARSP antenna within the operating frequency range of 1 GHz to 9GHz. The meander line technique was employed to miniaturize the planar ARSP antenna. The designed ARSP antenna was fed by a wide band miniaturized bent microstrip Balun. The diameter of the fabricated ARSP antenna was 82 millimeters. A metal cavity filled with absorber materials was used to obtain the unidirectional radiation patterns and its height was 30 millimeters. The parameters of designed ARSP antenna were determined by numerical simulations. A practical designed ARSP antenna was fabricated according to designed parameters and the experimental results of the fabricated ARSP antenna are provided. The experimental research results demonstrate that the fabricated ARSP antenna has radiation performances of wide beam and approximately circular polarization. The fabricated ARSP antenna can be used in several practical electronic systems such as wide band radar systems.

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