A New Small Dual-Band Elliptical Microstrip Antenna for Ku/K Band Satellite Applications

In this paper a new design of a dual small band small elliptical microstrip antenna is proposed for Ku and K band satellite applications. The basic antenna structure is an elliptical patch with inset-feed, which is modified by adding two rectangular slots in the radiation patch. The proposed antenna has been designed and fabricated on 1.58 mm thick FR4 substrate whose dielectric constant is 4.4, with dimensions of about 10×12×1.58 mm³. The antenna structure was validated using two different electromagnetic solvers and by measuring the results using a Vector Network Analyzer (VNA). The measured and simulated results show two resonant frequencies that define two bandwidths. Moreover, the proposed antenna frequency bands and the consistent and symmetrical radiation patterns make it an appropriate candidate for many applications such as the Ku/K band satellite application and wireless communications

A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite Applications

This paper presents an original elliptical microstrip patch antenna is proposed for Ku/K band satellite applications. The proposed antenna has a simple structure, small size with dimensions of about 10×12×1.58 mm³. The antenna has been designed and simulated on an FR4 substrate with dielectric constant 4.4 and thickness of 1.58 mm. The design is simulated by two different electromagnetic solvers. The results from the measured data show that the antenna has two resonant frequencies that define 2 bandwidths, defined by a return loss of less than -10 dB, and are: (14.44 GHz, 829 MHz) and (21.05 GHz, 5126 MHz),with the gain 5.59 dB and 5.048 dB respectively. The proposed antenna can be used in many applications such as in satellite, and wireless communications

A Smart Glucose Monitoring System for Diabetic Patient

[EN] Diabetic patients need ongoing surveillance, but this involves high costs for the government and family. The combined use of information and communication technologies (ICTs), artificial intelligence and smart devices can reduce these costs, helping the diabetic patient. This paper presents an intelligent architecture for the surveillance of diabetic disease that will allow physicians to remotely monitor the health of their patients through sensors integrated into smartphones and smart portable devices. The proposed architecture includes an intelligent algorithm developed to intelligently detect whether a parameter has exceeded a threshold, which may or may not involve urgency. To verify the proper functioning of this system, we developed a small portable device capable of measuring the level of glucose in the blood for diabetics and body temperature. We designed a secure mechanism to establish a wireless connection with the smartphone.Rghioui, A.; Lloret, J.; Harane, M.; Oumnad, A. (2020). A Smart Glucose Monitoring System for Diabetic Patient. Electronics. 9(4):1-18. https://doi.org/10.3390/electronics9040678S1189

Conception et Simulation d'un Réseau ULB de deux Antennes Micro-rubans pour les Communications par Satellite dans la bande Ku

Cette communication présente un réseau Ultra Large Bande de deux antennes à microbande elliptique proposée pour les applications satellitaires à bande Ku. L'antenne proposée a une structure simple, de petite taille avec des dimensions d'environ 11 × 12 × 1,58 mm³. L'antenne a été conçue et simulée sur un substrat FR4 avec une permittivité relative de 4,4 et une épaisseur de 1,58 mm. Les résultats des données mesurées montrent que l'antenne a une bande passante de 2.31GHz allant de 13.20 GHz jusqu’au 15.51 GHz avec une fréquence de résonance de 15.09 GHz de perte -29.168 dB. L'antenne proposée peut être utilisée dans de nombreuses applications telles que les communications par satellite, mobile par satellite et d’autres applications sans fil par satellite