TRINH , L.h.

This article presents a miniature pattern-reconfigurable antenna design. By using Digitally Tunable Capacitors (DTC), the power consumption of the antenna is limited and suitable for autonomous wireless node integration. The antenna prototype has been manufactured and measured. The obtained experimental results demonstrated the effectiveness of...

Cet article traite de la conception d'antenne à 868MHz utilisée pour les communication de l'Internet des objets terrestre (IoT) par satellites en orbite terrestre basse (OTB). Dans une première partie, les contraintes d'OTB et les caractéristiques d'antennes adaptées à cette application sont données. Ensuite, les premiers résultats utilisant...

A new approach for a passive wake-up receiver is presented to improve its sensitivity. This architecture is based on a passive voltage multiplier circuit associated with a Schottky diode rectifier and using an on-off keying modulation for the input radio frequency signal. It is shown that, using this approach, a 10 dB better sensitivity is...

National audience

This article presents the design and simulation of a MIMO antenna dedicated to picocell applications. Satisfying the compactness of a mini-residential gateway, the proposed concept is made up of two folded IFAs with PI matching circuits on a FR4 epoxy substrate. The antenna operates in the frequency range of 700 to 960 MHz with a S11 lower than...

In this letter, a novel mobile phone antenna for 2G, 3G and 4G standards is presented. Based on the folded inverted-L antenna associated with a ground stub, the proposed structure can operate in all the different bands of mobile telecommunications (GSM/UMTS/LTE). With a volume of 68×17 mm 2 and placed on a FR4 Epoxy substrate, total efficiency...

In this letter, a novel mobile phone antenna for 2G, 3G and 4G standards is presented. Based on the folded inverted-L antenna associated with a ground stub, the proposed structure can operate in all the different bands of mobile telecommunications (GSM/UMTS/LTE). With a volume of 68×17 mm 2 and placed on a FR4 Epoxy substrate, total efficiency...

This article presents a reconfigurable antenna for mobile terminal and TV white space communications, using a Digitally Tunable Capacitor (DTC). The antenna structure is matched permanently over the high frequency bands including DCS/PCS, UMTS, LTE 1800/2600, and 3.5 GHz bands.Concerning the sub-GHz bands, several reconfigurable states enable a...

Déclaration d'Invention déposée auprès de la Délégation Régionale Côte d'Azur CNRS

This article presents the design and simulation of a MIMO antenna dedicated to picocell applications. Satisfying the compactness of a mini-residential gateway, the proposed concept is made up of two folded IFAs with PI matching circuits on a FR4 epoxy substrate. The antenna operates in the frequency range of 700 to 960 MHz with a S11 lower than...

National audience

Body Area Networks (BAN) have received significant attention in recent years and have found a wide range of applications, including wearable devices for fitness and health tracking, and mobile communications. Battery lifetime continues to be the main bottleneck in these small form factor devices, thus low power design and advanced power...

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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...

Interest in wireless power transmission (WPT) systems has increased remarkably in recent years thanks to their unlimited applications in wireless sensor networks, energy harvesting systems, RFIDs and so on. The key element on the receiving side of a WPT system is the rectenna (rectifier + antenna) which receives electromagnetic power and...

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...

Interest in wireless power transmission (WPT) systems has increased remarkably in recent years thanks to their unlimited applications in wireless sensor networks, energy harvesting systems, RFIDs and so on. The key element on the receiving side of a WPT system is the rectenna (rectifier + antenna) which receives electromagnetic power and...

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, 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...

This paper presents an approach for the synthesis of pattern-reconfigurable antenna suitable for integration into smart wireless sensor nodes. As a proof-of-concept, a simple antenna configuration capable of steering the radiation main beam towards two opposite directions is discussed. The antenna exhibits a good impedance match in the WiFi...

National audience

In this paper, the design of an MIMO antenna system for WIFI gateway application is proposed. 8 printed monopole dual band antennas are placed on a 135×135mm 2 FR-4 PCB. Placement of the elements is optimized to limit coupling effect. The objective of the system is to combine the MIMO technique and antenna diversity to increase data rate...