ADDACI , R.

In this paper, Artificial Neural Network technique used for the analysis of multi-antenna system is presented. Used in conjunction with a developed Matlab code, this solution allows also to design quickly and accurately a high port to port isolation multi antenna system by giving the different physical parameters of the structure for desired...

In this paper, Artificial Neural Network technique used for the analysis of multi-antenna system is presented. Used in conjunction with a developed Matlab code, this solution allows also to design quickly and accurately a high port to port isolation multi antenna system by giving the different physical parameters of the structure for desired...

International audience

National audience

International audience

In this article, a new miniaturization technique for a circular wire patch antenna is presented. This technique consists in adding cylindrical skirts to the two metallic circular plates. A parametric study carried out for this new design shows that this new shape gives one more degree of freedom to control the resonance frequency and allows us...

National audience

In this paper, a new design of a miniature multiband antenna for small and low-profile wireless handheld devices is proposed. The proposed system operates in several communications standards WIFI (2.4-2.5GHz), LTE2500 (2.52.7GHz), HyperLAN2 (5.35-5.725GHz) and ISM (5.7255.825GHz) bands. Mounted on a small circular ground plane, of a radius of...

In this paper, an efficient dual multi-band planar inverted F Antenna system suitable for wireless communication devices is presented. This system is based on a new approach to enhance the bandwidth of the PIFA by using slots on their main plate in a specific configuration. A slots inserted on the substrate printed circuit board of the system...

In this paper, a new design of a miniature multiband antenna for small and low-profile wireless handheld devices is proposed. The proposed system operates in several communications standards WIFI (2.4-2.5GHz), LTE2500 (2.52.7GHz), HyperLAN2 (5.35-5.725GHz) and ISM (5.7255.825GHz) bands. Mounted on a small circular ground plane, of a radius of...

National audience

In this letter, an innovative technique is proposed to enhance the port-to-port isolation of two closely spaced dual-band radiating elements in the WLAN 2.4-2.5-GHz and 5.15-5.825-GHz frequency bands. This broadband technique consists in inserting an optimized parasitic element between the two antennas of a multiple-input-multiple-output (MIMO)...

In this paper, the influence of the ground plane dimensions on the port-to-port isolation of two closely-spaced Universal Mobile Telecommunications System (UMTS) Planar Inverted-F Antennas (PIFAs) with and without neutralization line is first presented. Parametric studies show the existence of an optimal size of the ground plane allowing...

In this paper, an efficient dual multi-band planar inverted F Antenna system suitable for wireless communication devices is presented. This system is based on a new approach to enhance the bandwidth of the PIFA by using slots on their main plate in a specific configuration. A slots inserted on the substrate printed circuit board of the system...

In this paper, the influence of the ground plane dimensions on the port-to-port isolation of two closely-spaced Universal Mobile Telecommunications System (UMTS) Planar Inverted-F Antennas (PIFAs) with and without neutralization line is first presented. Parametric studies show the existence of an optimal size of the ground plane allowing...

A dual band [2.4-2.48 GHz] and [5.15-5.725 GHz] multi antenna system with high isolation between the access ports is presented in this paper. It is found that isolation of more than -18 dB can be achieved in the two bands between two planar inverted-F antennas (PIFAs) sharing a common ground plane, with inter-antenna spacing of 0.016λ 0 for the...

Proposed is a simple technique to enhance the bandwidth of a planar monopole antenna with overall dimensions of 30 × 10 mm2. With the proposed method, based on a modified ground plane and a loop feeding structure, the -6 dB bandwidth can be enhanced by ~50% compared to the basic structure. Based on the simulation results, the antenna achieved a...

In this paper, the diversity and MIMO performance of a high port to port isolation WLAN dual-band 2.4-2.5 GHz and 5.15-5.825 GHz antenna system is presented. The high isolation of this system is obtained by the insertion of an optimized parasitic element between the two closely-spaced radiating elements. The diversity and MIMO performance of...

International audience

International audience

In this paper, we present a multiantenna system based on closely spaced planar inverted-F antennas (PIFAs) with high port-to-port isolation in two dual bands [2.4-2.48 GHz] and [5.15-5.725 GHz]. The high isolation, respectively higher than 30 and 20 dB in the entire lower and upper bands, is obtained by inserting two slots on the 100 × 50 mm 2...

In this paper, we present a multiantenna system based on closely spaced planar inverted-F antennas (PIFAs) with high port-to-port isolation in two dual bands [2.4-2.48 GHz] and [5.15-5.725 GHz]. The high isolation, respectively higher than 30 and 20 dB in the entire lower and upper bands, is obtained by inserting two slots on the 100 × 50 mm 2...

In this paper, a new diversity system containing ten planar inverted F antennas (PIFA) placed on a parallelepiped box which combines polarization, radiation pattern and space diversities is presented. The system operates in the [2.4-2.5 GHz] band and exhibits a minimum of 17dB of isolation between all its input ports.