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A surface wave antenna with an antenna gain of 6.29dBi and an FB ratio of 16.7dB at 8.3GHz is presented. This antenna is vertically polarized and designed for unidirectional beam having a low-profile structure with a height of 0.098λ_0. This antenna is composed of a loop element and arrayed dogbone-shaped elements. The phase distribution of electric field radiated from both elements are analyzed the...
A Vivaldi flexible antenna with a −6 dB bandwidth from 150 MHz to 2000 MHz is introduced. The antenna is fabricated on a 60×60 cm2 silicone substrate. In this paper, we present the design, realization and performances of this wide band and directive antenna. The proposed structure is lightweight, easy to realize and does not require any matching network. The targeted application is the radio-localization...
In this study, a low cost highly directive 1×4 end-fire dipole antenna array is designed and presented, providing 9.3dB gain. This array is going to be mounted on the wings of a Remotely Piloted Aircraft System (RPAS) to ensure reliable and secured links with the Ground Control Station (GCS) over large distances. Moreover a 2×4 low cost multi-layer patch antenna array with 14dB gain, placed on the...
In this paper, a new conception of high gain antenna have been staged. High gain antenna is designed by increasing the number of main radiating patch in a linear antenna array and studying the radiation patterns for the single patch antenna and array of 5 elements, 9 elements and 16 elements in order to attain a high directive gain for ISM Band. For many applications a high gain and directive antenna...
In this paper an X band 2×8 half mode SIW resonant transverse slot antenna array is designed. The power divider and the radiating slots are designed integrated with compact structure. The results show that the band is about 3.8%, and maximum gain is about 13.5 dB. The antenna beam scans with frequency. The maximum gain direction deviates from the normal of antenna with42o at 9 GHz.
Wireless systems using license-free 60 GHz band have been focused as Gbps ultra-high speed data rate short range communication. Beamforming techniques based on array antennas have been employed to obtain high directional antenna gain [1]. In order to realize an array antenna in millimeter-wave frequency range, the accuracy of positioning of the antenna elements becomes considerably important. Conventional...
The three-dimensional dielectric embedded patch Yagi antenna is created by reducing the periphery of microstrip patch antennas' grounding deposited copper(but never change the size of the substrate), superimposing its substrate layer after layer and depositing the copper element (driven element and director element) in appropriate thickness place of the cascading substrate. The three-dimensional duality...
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