Mohamed Latrach

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In this study, we have developed a hybrid sensitive rectenna (rectifier + antenna) system at 2.45 GHz. To achieve this system, we have first optimized and validated a zero-bias microwave sensitive rectifier using commercial Schottky diodes. We have then optimized and achieved a 2times2 patch antenna array, which is associated to the microwave rectifier in(More)
The increasing deployment of wireless communication systems in indoor environment, with different standards, make necessary the research for a new approach allowing the efficient and accurate prediction of their electromagnetic coverage. It becomes essential to predict the behavior of antennas in the presence of various obstacles for planning the(More)
In this paper, a novel study on the design and analysis of a compact printed antenna for multi-band applications are presented. The structure of the entire area is 45&#x00D7;45.5 mm<sup>2</sup> and is printed on an FR-4 epoxy substrate. It is suitable for GSM/GPS/PCS applications by using an M-shaped antenna which is formed of different arms and an L-shaped(More)
This paper presents a new miniature low cost planar RFID antenna designed @ 2.45 GHz. In order to validate the final structure, we have conducted a study on two antenna structures. The first one is based on a rectangular patch with a centred slot line, and the second one is based on a monopole antenna. By comparing the performances of both structures we(More)
This paper presents a novel dual-band monopole antenna fed by a Coplanar Waveguide (CPW) line suitable for Radio Frequency Identification (RFID) applications especially designed for RFID readers and it operates at 2.45 GHz and 5.8 GHz. This antenna is designed with a reasonable gain, low profile and low cost achievement. The proposed antenna benefits from(More)
This paper presents a novel dual-band uniplanar monopole antenna fed by Coplanar Waveguide (CPW) line suitable for Radio Frequency Identification (RFID) applications especially designed for RFID readers and it operates at 2.45 GHZ and 5.8 GHZ. This antenna is designed with reasonable gain, low profile and low cost achievement. The proposed antenna benefits(More)
This paper presents the SRR effect on half-loop antenna characteristics. An original antenna resonating at 3.9GHz is shifted to 881MHz. Its radiation pattern is changed by adding one cell of Split Ring Resonators (SRR). The size of the radiating element is &#x03BB;<sub>0</sub>/9 &#x00D7; &#x03BB;<sub>0</sub>/13 and the ground plane is(More)
—The presence of human body has an important influence on the wireless communication systems in indoor environments. The need of efficient prediction for such coverage becomes essential. This paper present an efficient electromagnetic indoor propagation modeling, taking into account the presence of human body and the nature of materials of the complex(More)
In this work, a novel compact microstrip low-pass filter is designed based on square split ring resonator. The SRR is used to reduce the size of the filter and to improve the good electrical performances. The dumbbell-shaped defected ground structure is introduced into the ground plane in order to achieve a desired cutoff frequency of 1.2 GHz with a ripple(More)
This paper presents a study of a new fractal antenna mounted on FR4 substrate with overall dimensions of 34&#x00D7;43mm<sup>2</sup>. The radiator geometry shape is achieved by using the concatenation between circular and rectangular shapes with four iterations juxtaposed. Two slots have been inserted in the ground planes which improve the matching of input(More)