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Nowadays, in some applications related to Radar systems, it is needed to detect targets in different directions. The use of mechanical devices to allow beam steering could be slow and power consuming. In fact, as a solution, electronic scanning radars permit to easily control the beam steering electronically. It uses an electronic device controlling an array antenna. This paper presents a patch array...
A novel compact rectangular patch antenna with split ring resonator (SRR) and T stub loading is proposed for C-band applications. The SRR is used to have the advantage of optimized mutual coupling between the antennas. Coaxial feed is used in this design. The antenna is designed on FR4 epoxy substrate with the dimensions of 60×60×1.6 mm3. The proposed antenna has the return loss (S11) and gain of...
The x-pol antenna radiation pattern can be optimized by 180° out of phase excitation and mirroring the single fed antenna radiators inside the antenna array. In consequence the optimum phase excitation distribution for the Limited Field of View LFoV antenna arrays is investigated in this publication for maximum Cross Polarization Suppression (CPS), not only at broadside, but also for the complete...
In this letter the design and simulation of an 0.43GHz P/UHF band microstrip patch antenna as single element, 2, 4, 8 & 16-element linear array using RT/duroid 6002 substrate was proposed. An inter-element spacing of 0.73λ for limited scan angle coverage. Wind profiling radar operating in Doppler beam swinging mode and spaced antenna drift technique mode needs to have a large aperture antenna...
The design and development of linear dual-band patch arrays with wide-angle scanning feature and large frequency ratio is presented. The novel dual-band patch antenna used in the linear arrays supports two well-defined bands with a frequency ratio of 1.43∶1, in the X-band, and maintains consistent radiation patterns at both the sub-bands. The antenna also has a compact electrical dimensions measuring...
The design and experimental validation of a dual-band array antenna concept is presented. The antenna supports quasi-magneto-electric radiation characteristics which simultaneously utilizes both the electric and magnetic radiation characteristics in the overall radiation mechanism. A prototype of the antenna has been manufactured and the demonstrated performances include dual-band operation with large...
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