i-manager's Journal on Electronics Engineering (JELE)


Volume 11 Issue 1 September - November 2020

Research Paper

An IoT based Intelligent Health Monitoring and Management System

Aananthi. S. V.* , Asma M. **, Heena Hafeesa M. A. ***, Helen Sulochana C. ****
*-**** Department of Electronics and Communication Engineering, St. Xavier's Catholic College of Engineering, Nagercoil, Tamil Nadu, India.
Aananthi, S. V., Asma, M., Hafeesa, M. A. H., and Sulochana, C. H. (2020). An IoT based Intelligent Health Monitoring and Management System. i-manager's Journal on Electronics Engineering, 11(1), 1-7. https://doi.org/10.26634/jele.11.1.18185

Abstract

In recent years, there is a tremendous rise in physical and mental issues related to abnormal heart rate and blood pressure. These issues can often lead to death. This brings in a condition where continuous monitoring of heart rate and blood pressure is crucial. Monitoring in hospitals can be uncomfortable for various reasons and at times it can get interrupted. A portable patient monitoring system for round the clock ambulatory monitoring can offer better service for this purpose. The goal of this paper is to design a sensor network system for health and safety application with the use of Internet of Things (IOT) to store and transmit the activity of an individual. This system involves the use of heart rate and SpO2 sensor, blood pressure sensor and temperature sensor for measuring the physical parameters of the individual. The sensors are interfaced with the Arduino Uno. GSM module is connected to the system for alerting the doctor in case of emergency. The use of GPS makes it possible to track the location of the individual. Further all the patient's data are stored in cloud for future accessing.

Research Paper

Multiport Compact UWB MIMO Antenna with High Isolation and Band Notched Characteristics

Asokan V.* , K. Senthilkumar **, Sharvani M. ***, Shanthini Priya R. ****, Rithika T. *****, Ramya H. ******
*-****** Department of Electronics and Communication Engineering, Rajalakshmi Engineering College, Chennai, Tamilnadu, India.
Asokan, V., Senthilkumar, K., Sharvani, M., Priya, R. S., Rithika, T., and Ramya, H. (2020). Multiport Compact UWB MIMO Antenna with High Isolation and Band Notched Characteristics. i-manager's Journal on Electronics Engineering, 11(1), 8-15. https://doi.org/10.26634/jele.11.1.18190

Abstract

One among the fast-growing trends in wireless standards is multiple-input-multiple-output (MIMO) antennas. It has attracted researchers all over the world to design electronic devices with prominent bandwidth. The proposed design consists of two rectangular patch shaped antenna arranged in a way to form multiple-input-multiple-output (MIMO) antenna which operates at two resonating frequencies such as 6.6 GHz and 12.77 GHz. We have implemented E-shaped and U-shaped slots in the radiating patch of the antenna. Parasitic structure has also been embedded on the backside of the substrate to improve isolation and it also consists of partial ground plane. The substrate is made of FR-4 material with a thickness of 1.6 mm, a length of 25 mm and a width of 36 mm. The bandwidth obtained is a dual-band of frequencies such as 5.22 to 8.94 GHz and 12.74 to 12.81 GHz. The return loss obtained at 6.6 GHz is -23.90 dB and at 12.77 GHz is -18.41 dB. The isolation achieved is -38.48 dB and -42.47 dB with also a peak gain of 5.00 dB.

Research Paper

Design and Implementation of IoT based Pollution Monitoring and Control

Kakarla Deepti*
Department of Electronics and Communications Engineering, Vasavi College of Engineering, Telangana, Hyderabad, India.
Deepti, K. (2020). Design and Implementation of IoT based Pollution Monitoring and Control. i-manager's Journal on Electronics Engineering, 11(1), 16-24. https://doi.org/10.26634/jele.11.1.18295

Abstract

Indoor air pollution in developing countries has a direct impact on the mortality rate. Washrooms and kitchens are the common sources of indoor air pollution. In recent years, Scientists and public have shown more concern towards indoor air quality as most people spend more than 70-90% of their time indoors. Shower head and faucets can accumulate bacteria due to the moist environment in washrooms. The swift in the deterioration in quality of atmospheric conditions is very high due to unclean emissions from automobiles and industries. These changes could be the causes of life threatening diseases. An air quality monitoring system that relies on IoT and cloud computing is presented in the proposed work. The device is designed to sense CO2, CO, H2, NH3, LPG, Toluene, Temperature and Humidity. The system sense the presence of these air pollutants and send them to cloud analysis. It also includes the development of a mobile application to monitor and alert whenever the pollutant concentration exceeds the threshold value.

Research Paper

Design Methodology for Microstrip Isolators at Microwave Frequencies

Priya Sarkar* , Nirupam Sharma **, B. H. M. Darukesha ***, Kamaljeet Singh ****, A. V. Nirmal *****
*-*** Thin Films Division, UR Rao Satellite Centre, Bangalore, India.
**** HMC Indigenisation Group, UR Rao Satellite Centre, Bangalore, India.
***** Components and Materials Management Area, UR Rao Satellite Centre, Bangalore, India.
Sarkar, P., Sharma, N., Darukesha, B. H. M., Singh, K.., and Nirmal, A. V. (2020). Design Methodology for Microstrip Isolators at Microwave Frequencies. i-manager's Journal on Electronics Engineering, 11(1), 25-28. https://doi.org/10.26634/jele.11.1.18249

Abstract

Isolator is a non-reciprocal device that is an integral component of RF systems. This article details the design approach and simulation studies of a microstrip based drop in isolator at X band intended to be used in aerospace modules. Isolator design and realization is critical as it is sensitive to the choice of ferrite-dielectric assembly and magnetic bias. The design presented here operates at 8.2 GHz, offers an Insertion Loss better than 0.3 dB, Return Losses better than 23 dB and Isolation better than 20 dB over a relative bandwidth of 13%. It is designed using Yttrium-Calcium Garnet as the ferrite and Alumina as the dielectric substrate which are readily available and does not rely on access to specialty materials.

Research Paper

Design of Low SAR Wearable Textile Antenna for 5G snd IoT Applications

S. Prasad Jones Christydass* , R. Nandhini **, J. Subhashini ***, A. Sneha ****
*-**** K. Ramakrishnan College of Technology (Autonomous), Samayapuram, Trichy, Tamil Nadu, India.
Christydass, S. P. J., Nandhini, R., Subhashini, J., and Sneha, A. (2020). Design of Low SAR Wearable Textile Antenna for 5G snd IoT Applications. i-manager's Journal on Electronics Engineering, 11(1), 29-34. https://doi.org/10.26634/jele.11.1.18141

Abstract

The aim of this paper is to design UWB antenna in textile material (Jean cloth), using sub 6 GHz and WLAN for 5G applications. Based on the developed results, this antenna proves to be an appropriate choice for various wireless applications including WLAN, Bluetooth, WiMAX, and X-band satellite communication systems.