Design and Development of a New Electrically Small 3D UHF Spherical Antenna with 360° of Opening Angle in the Whole Space for RFID, WSN, and RSN Applications

Abdelhamid Bou-El-Harmel,Ali Benbassou,Jamal Belkadid

doi:10.1155/2016/2906149

Abdelhamid Bou-El-Harmel, Ali Benbassou + Show 1 more

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https://doi.org/10.1155/2016/2906149

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Abstract

Several antenna designs have been made in order to obtain a novel electrically small 3D UHF spherical antenna (ka = 0.1916), which has a resonance frequency close to 915 MHz, produces a quasi-isotropic radiation with an opening angle equal to 360° in the whole space, and is used for RFID, WSN, and RSN applications. These antennas are based on different shapes and are wrapped on the Styrofoam sphere surface of dielectric constant close to air (ɛr=1.06). A T-match configuration is used to adapt the input impedance of antennas to a value of 50 Ω. The antennas form allows for placing the sensor electronics in its interior, to reconfigure it for numerous values of impedances and to operate it in other ISM bands by adjusting their geometric parameters.

Highlights

The radio frequency identification (RFID) sensor network (RSN) is an important wireless networking technology which belongs to Wireless Personal Area Network (WPAN)
The RFID sensor network (RSN) is an important wireless networking technology which belongs to Wireless Personal Area Network (WPAN)
It forms a new research area, which solicited the interest of both the industry and the research community. This new technology is the result of the integration of the radio frequency identification (RFID) technology [1] and wireless sensor network (WSN) technology [2]

Summary

Introduction

The RFID sensor network (RSN) is an important wireless networking technology which belongs to Wireless Personal Area Network (WPAN) It forms a new research area, which solicited the interest of both the industry and the research community. This new technology is the result of the integration of the radio frequency identification (RFID) technology [1] and wireless sensor network (WSN) technology [2]. The integration of these two technologies can extend the range of applications and offer a benefit to existing applications [3,4,5,6,7]. The RSN architectures are possible architectures of the integrated RFID and WSN; according to research works [3,4,5,6,7], there are the four types of integrations class:

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