Conception and optimization of a bidirectional ultra wide band planar array antennas for C-Band weather radar applications

A miniaturized ultra wideband (UWB) planar array antennas for C-band aircraft weather RADAR applications is presented. Firstly, the effect of the ground plane is studied. Later, the realization and experimental validation of the geometry that has an UWB characteristic are discussed. This array antennas is composed of a twenty-four radiating element that is etched onto FR-4 substrate with an overall size of 162×100×1.58 mm3 and a dielectric constant of εr=4.4. The results show that this miniaturized array antennas gives us a bandwidth which is about 115% and a gain greater than 13 dB which are required in aircraft weather radar applications.

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Gain and bandwidth enhancement of New Planar microstrip array antennas geometry for C band weather radar applications

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078716001203 ◽

2016 ◽

Vol 9 (5) ◽

pp. 1139-1146 ◽

Cited By ~ 1

Author(s):

Abdellatif Slimani ◽

Saad Dosse Bennani ◽

Ali El Alami ◽

Mohamed Amellal

Keyword(s):

Weather Radar ◽

Wide Band ◽

Bandwidth Enhancement ◽

High Frequency Structure Simulator ◽

Full Wave ◽

Array Antennas ◽

Quarter Wave ◽

Radar Applications ◽

Microstrip Array ◽

Wave Transformer

A 4–8 GHz ultra wide band microstrip array antennas with improved gain for weather Radar applications was designed and fabricated. The microstrip radiating elements of the proposed array antennas are powered using a T-junction power divider with quarter wave-transformer impedance for a best matching. The design of this array antennas is based on the geometry of a linear array antennas well studied [ref (8)], which is based on minimizing of the electromagnetic (EM) coupling between the radiating elements and as decreasing the number of side lobes. The array antennas with dimension of (110 × 214 × 1.58 mm3) is fabricated on FR-4 epoxy dielectric with relative permittivity of 4.4 and thicknessh= 1.58 mm, it is performed in the full-wave EM solver High Frequency Structure Simulator, CST and verified by measurement. The proposed broadband array antennas show a better performance than the references antennas in deferent parameter which cited after.

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Highly directional planar Ultra Wide Band antenna for radar applications

2007 European Microwave Integrated Circuit Conference ◽

10.1109/emicc.2007.4412790 ◽

2007 ◽

Cited By ~ 1

Author(s):

A. Locatelli ◽

D. Modotto ◽

F. M. Pigozzo ◽

S. Boscolo ◽

E. Autizi ◽

...

Keyword(s):

Wide Band ◽

Ultra Wide Band ◽

Radar Applications

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DESIGN AND PROTOTYPE OF A COMPACT, ULTRA WIDE BAND DOUBLE RIDGED HORN ANTENNA FOR BEHIND OBSTACLE RADAR APPLICATIONS

Turkish Journal of Engineering ◽

10.31127/tuje.316696 ◽

2017 ◽

Vol 1 (2) ◽

pp. 33-38

Author(s):

Caner Özdemir ◽

Betül Yılmaz

Keyword(s):

Wide Band ◽

Horn Antenna ◽

Ultra Wide Band ◽

Radar Applications

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Design of Octagonal Fractal Array Antenna for Side Lobe Reduction with Morse-Thue Fractal Density Tapering Technique

10.20944/preprints201612.0040.v1 ◽

2016 ◽

Author(s):

V. A. Sankar Ponnapalli ◽

V. Y. Jayasree Pappu

Keyword(s):

Wide Band ◽

Side Lobe ◽

Array Antenna ◽

Ultra Wide Band ◽

Space Filling ◽

Remarkable Improvement ◽

Array Antennas ◽

Fractal Density

Fractal array antennas are multiband arrays having ultra wide band and space filling facility. But Side lobe levels and large number of antenna elements are the major designing challenges of these arrays. In this paper, design and analysis of octagonal fractal array antenna is investigated with Morse-Thue fractal density tapering technique (MTFDT). Due to the proposed technique, a remarkable improvement has observed in Side lobe levels and thinning of the elements can also be attained at the various iterations of octagonal fractal array antenna. These arrays are analyzed and simulated by MATLAB-15 programming.

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