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

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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 S_pO₂ 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.

References

[1]. Azhari, A., Yoshimoto, S., Nezu, T., Iida, H., Ota, H., Noda, Y., ... & Morii, K. (2017, October). A patch-type wireless forehead pulse oximeter for Sp O2 measurement. In 2017, IEEE Biomedical Circuits and Systems Conference (BioCAS) (pp. 1-4). IEEE.

[2]. Chu, C. T., Ho, C. C., Chang, C. H., & Ho, M. C. (2017, May). Non-invasive optical heart rate monitor base on one chip integration microcontroller solution. In 2017, 6^th International Symposium on Next Generation Electronics (ISNE) (pp. 1-4). IEEE.

[3]. Elagha, A. Y., EL-Farra, A. A., & Shehada, M. H. K. (2019, October). Design a non-invasive pulse oximeter device based on pic microcontroller. In 2019, International Conference on Promising Electronic Technologies (ICPET) (pp. 107-112). IEEE.

[4]. Gohlke, L., Dreyer, F., Álvarez, M. P., & Anders, J. (2020, October). An IoT based low-cost heart rate measurement system employing PPG sensors. In 2020, IEEE Sensors (pp. 1- 4). IEEE. https://doi.org/10.1109/SENSORS47125.2020.927 8844

[5]. Hu, B. D. C., Fahmi, H., Yuhao, L., Kiong, C. C., & Harun, A. (2018, August). Internet of Things (IOT) monitoring system for elderly. In 2018, International Conference on Intelligent and Advanced System (ICIAS) (pp. 1-6). IEEE. https://doi. org/10.1109/ICIAS.2018.8540567

[6]. Joseph, A. A., Xuan, T. H. L., Kipli, K., Chin, K. L., & Song, N. S. (2018, August). Smart body temperature monitoring system for children via mobile. In 2018, International Conference on Computational Approach in Smart Systems Design and Applications (ICASSDA) (pp. 1-6). IEEE.

[7]. Mahmood, S. N., & Ercelecbi, E. (2018, May). Development of blood pressure monitor by using capacitive pressure sensor and microcontroller. In 2018, International Conference on Engineering Technology and their Applications (IICETA) (pp. 96-100). IEEE. https://doi.org/ 10.1109/IICETA.2018.8458099

[8]. Miah, M. A. R., Basak, S., Huda, M. R., & Roy, A. (2013, May). Low cost computer based heart rate monitoring system using fingertip and microphone port. In 2013, International Conference on Informatics, Electronics and Vision (ICIEV) (pp. 1-4). IEEE. https://doi.org/10.1109/ICIEV. 2013.6572703

[9]. Narasimhan, R., Parlikar, T., Verghese, G., & McConnell, M. V. (2018, July). Finger-wearable blood pressure monitor. In 2018, 40^th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 3792-3795). IEEE. https://doi. org/10.1109/EMBC.2018.8513065

[10]. Natarasan, S., & Sekar, P. (2020, July). Design and implementation of heartbeat rate and S_pO₂ detector by using IoT for patients. In 2020, International Conference on Electronics and Sustainable Communication Systems (ICESC) (pp. 630-636). IEEE. https://doi.org/10.1109/ICESC4 8915.2020.9155925

[11]. Nookhao, S., Thananant, V., & Khunkhao, T. (2020, March). Development of IoT Heartbeat and Body Temperature Monitoring System for Community Health Volunteer. In 2020, Joint International Conference on Digital Arts, Media and Technology with ECTI Northern Section Conference on Electrical, Electronics, Computer and Telecommunications Engineering (ECTI DAMT & NCON) (pp. 106-109). IEEE. https://doi.org/10.1109/ECTIDA MTNCON48261.2020.9090692

[12]. Patii, N., & Iyer, B. (2017, May). Health monitoring and tracking system for soldiers using Internet of Things (IoT). In 2017, International Conference on Computing, Communication and Automation (ICCCA) (pp. 1347- 1352). IEEE. https://doi.org/10.1109/CCAA.2017.8230007

[13]. Pawar, P. A. (2014, March). Heart rate monitoring system using IR base sensor & Arduino Uno. In 2014, Conference on IT in business, Industry and Government (CSIBIG) (pp. 1-3). IEEE.

[14]. Shaltis, P. A., Reisner, A. T., & Asada, H. H. (2008). Cuffless blood pressure monitoring using hydrostatic pressure changes. IEEE Transactions on Biomedical Engineering, 55(6), 1775-1777. https://doi.org/10.1109/TB ME.2008.919142

[15]. Shyu, L. Y., Kao, Y. L., Tsai, W. Y., & Hu, W. (2012, January). Development of a cuffless blood pressure measurement system. In 2012, Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 2040-2043). IEEE. https://doi.org/10.11 09/EMBC.2012. 6346359

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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.

References

[1]. Ansys. (2021). Best-In-Class 3D High Frequency Electromagnetic Simulation Software. Retrieved from https://www.ansys.com/en-in/products/electronics/ansyshfss

[2]. Azarm, B., Ghobadi, C., Nourinia, J., Abbasilayegh, M., & Karamirad, M. (2017). A Band-Notched Square Monopole Antenna designed for Bandwidth Enhancement in UWB Applications. Applied Computational Electromagnetics Society Journal, 32(10), 929–934.

[3]. Azarm, B., Nourinia, J., Ghobadi, C., Majidzadeh, M., & Hatami, N. (2018). A Compact WiMAX Band-Notched UWB MIMO Antenna with High Isolation. Radioengineering, 27(4), 983-989. https://doi.org/10.13164/re.2018.0983

[4]. Balanis, C. A. (2015). Antenna theory: Analysis and Design. John Wiley & sons.

[5]. Chen, W. X., Lee, C. H., & Hsu, C. I. (2017). CM suppression enhancement for balanced band‐notched UWB closed‐aperture antenna. Electronics Letters, 53(19), 1291-1292.

[6]. Cheng, C. M., Chen, W. S., Lin, G. Q., & Chen, H. M. (2017, March). Four antennas on smart watch for GPS/UMTS/WLAN MIMO application. In 2017, IEEE International Conference on Computational Electromagnetics (ICCEM) (pp. 346-348). IEEE. https://doi. org/10.1109/COMPEM.2017.7912744

[7]. Federal Communications Commission. (2002). FCC Report and Order for Part 15 acceptance of ultra wideband (UWB) systems from 3.1–10.6 GHz. FCC, Washington, DC, 1-10.

[8]. Jensen, M. A. (2016, June). A history of MIMO wireless communications. In 2016, IEEE International Symposium on Antennas and Propagation (APSURSI) (pp. 681-682). IEEE. https://doi.org/10.1109/APS.2016.7696049

[9]. Khan, A. A., Jamaluddin, M. H., Aqeel, S., Nasir, J., & Owais, O. (2017). Dual-band MIMO dielectric resonator antenna for WiMAX/WLAN applications. IET Microwaves, Antennas & Propagation, 11(1), 113-120. https://doi.org/ 10.1049/iet-map.2015.0745

[10]. Khan, M. S., Capobianco, A. D., Shafique, M. F., Ijaz, B., Naqvi, A., & Braaten, B. D. (2015). Isolation enhancement of a wideband MIMO antenna using floating parasitic elements. Microwave and Optical Technology Letters, 57(7), 1677-1682. https://doi.org/10.1 002/mop.29162

[11]. Kundu, S. (2018). Balloon‐shaped CPW fed printed UWB antenna with dual frequency notch to eliminate WiMAX and WLAN interferences. Microwave and Optical Technology Letters, 60(7), 1744-1750. https://doi.org/10.1 002/mop.31230

[12]. Kundu, S., & Jana, S. K. (2018). Leaf‐shaped CPW‐fed UWB antenna with triple notch bands for ground penetrating radar applications. Microwave and Optical Technology Letters, 60(4), 930-936. https://doi.org/10.100 2/mop.31075

[13]. Lee, C. H., Wu, J. H., Hsu, C. I. G., Chan, H. L., & Chen, H. H. (2017). Balanced band-notched UWB filtering circular patch antenna with common-mode suppression. IEEE Antennas and Wireless Propagation Letters, 16, 2812- 2815. https://doi.org/10.1109/LAWP.2017.2748279

[14]. Li, Z., Du, Z., Takahashi, M., Saito, K., & Ito, K. (2011). Reducing mutual coupling of MIMO antennas with parasitic elements for mobile terminals. IEEE Transactions on Antennas and Propagation, 60(2), 473-481. https://doi. org/10.1109/tap.2011.2173432

[15]. Tang, Z., Wu, X., Zhan, J., Hu, S., Xi, Z., & Liu, Y. (2019). Compact UWB-MIMO antenna with high isolation and triple band-notched characteristics. IEEE Access, 7, 19856- 19865. https://doi.org/10.1109/access.2019.2897170

[16]. Tao, J., & Feng, Q. (2016). Compact ultrawideband MIMO antenna with half-slot structure. IEEE Antennas and wireless Propagation letters, 16, 792-795. https://doi.org/ 10.1109/LAWP.2016.2604344

[17]. Toktas, A. (2017). G-shaped band-notched ultrawideband MIMO antenna system for mobile terminals. IET Microwaves, Antennas & Propagation, 11(5), 718-725. https://doi.org/10.1049/iet-map.2016.0820

[18]. Yang, Y., Chu, Q., & Mao, C. (2016). Multiband MIMO antenna for GSM, DCS, and LTE indoor applications. IEEE Antennas and Wireless Propagation Letters, 15, 1573- 1576. https://doi.org/10.1109/lawp.2016.2517188

[19]. Zhang, Y., & Wang, P. (2016). Single ring two-port MIMO antenna for LTE applications. Electronics Letters, 52(12), 998-1000. https://doi.org/10.1049/el.2016.0857

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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.

References

[1]. Kulkarni, K. A., & Zambare, M. S. (2018). The impact study of houseplants in purification of environment using wireless sensor network. Wireless Sensor Network, 10(3), 59- 69. https://doi.org/10.4236/wsn.2018.103003

[2]. Kumar, P. N. S., & Kumari, A. K. (2019). Design of Gas Detection and Monitoring System using IoT. International Journal of Engineering Research and Technology (IJERT), 8(11), 463-468.

[3]. Liu, J. H., Chen, Y. F., Lin, T. S., Lai, D. W., Wen, T. H., Sun, C. H., ... & Jiang, J. A. (2011, November). Developed urban air quality monitoring system based on wireless sensor networks. In 2011, 5^th International Conference on Sensing Technology (pp. 549-554). IEEE. https://doi.org/10. 1109/ICSensT.2011.6137040

[4]. Luo, S., Xia, H., Gao, Y., Jin, J. S., & Athauda, R. (2008, October). Smart fridges with multimedia capability for better nutrition and health. In 2008, International Symposium on Ubiquitous Multimedia Computing (pp. 39-44). IEEE. https://doi.org/10.1109/UMC.2008.17

[5]. Parikh, R., Mathai, A., Parikh, S., Sekhar, G. C., & Thomas, R. (2008). Understanding and using sensitivity, specificity and predictive values. Indian Journal of Ophthalmology, 56(1), 45-50. https://dx.doi.org/10.4103 %2F0301-4738.37595

[6]. Postolache, O. A., Pereira, J. D., & Girao, P. S. (2009). Smart sensors network for air quality monitoring applications. IEEE Transactions on Instrumentation and Measurement, 58(9), 3253-3262. https://doi.org/10.1109/ TIM.2009.2022372

[7]. Rout, G., Karuturi, S., & Padmini, T. N. (2018). Pollution monitoring system using IoT. ARPN Journal of Engineering and Applied Sciences, 13(6), 2116–2123.

[8]. Singh, D., & Jain, P. (2016). IoT based smart refrigerator system. International Journal of Advanced Research in Electronics and Communication Engineering (IJARECE), 5(7), 2080-2084.

[9]. Sokolova, M., Japkowicz, N., & Szpakowicz, S. (2006, December). Beyond accuracy, F-score and ROC: a family of discriminant measures for performance evaluation. In Australasian Joint Conference on Artificial Intelligence (pp. 1015-1021). Springer, Berlin, Heidelberg. https://doi.org/10. 1007/11941439_114

[10]. Sun, J., Zhang, Z., Shen, S., & Zou, Z. (2017, November). An Improved Air Quality Monitoring System Based on Wireless Sensor Networks. In Proceedings of the 2017 2^nd International Conference on Communication and Information Systems (pp. 31-36). https://doi.org/10.11 45/3158233.3159306

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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.

References

[1]. Bosma, H. (1962). On the principle of stripline circulation. Proceedings of the IEE-Part B: Electronic and Communication Engineering, 109(21), 137-146.

[2]. Bosma, H. (1964). On stripline Y-circulation at UHF. IEEE Transactions on Microwave Theory and Techniques, 12(1), 61-72. https://doi.org/10.1109/TMTT.1964.1125753

[3]. Fay, C. E., & Comstock, R. L. (1965). Operation of the ferrite junction circulator. IEEE Transactions on Microwave Theory and Techniques, 13(1), 15-27.

[4]. Jaiswal, N., & Pradeepkumar, P. (2018, December). Ultra-broadband C-band stripline co-axial isolator design. In 2018, IEEE Indian Conference on Antennas and Propagation (InCAP) (pp. 1-4). IEEE. https://doi.org/10.110 9/INCAP.2018.8770783

[5]. Pozar, D. M. (2011). Microwave Engineering. John Wiley & Sons.

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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.

References

[1]. Ahmadihaji, A., Aliakbarian, H., Saaid, N. M., & Soh, P. J. (2020, February). Design and on-body evaluations of a low-cost wearable PIFA for on-body applications. In IOP Conference Series: Materials Science and Engineering (Vol. 767, No. 1, p. 012026). IOP Publishing. https://doi.org/ 10.1088/1757-899X/767/1/012026

[2]. Atanasova, G. L., & Atanasov, N. T. (2020, February). Impact of electromagnetic properties of textile materials on performance of a low-profile wearable antenna backed by a reflector. In 2020, International Workshop on Antenna Technology (iWAT) (pp. 1-4). IEEE.

[3]. Atanasova, G., & Atanasov, N. (2020). Small antennas for wearable sensor networks: impact of the electromagnetic properties of the textiles on antenna performance. Sensors, 20(18), 5157-5178. https://doi.org/10.3390/s20185157

[4]. Camacho-Gomez, C., Sanchez-Montero, R., Martinez-Villanueva, D., Lopez-Espi, P. L., & Salcedo-Sanz, S. (2020). Design of a multi-band microstrip textile patch antenna for LTE and 5G services with the CRO-SL ensemble. Applied Sciences, 10(3), 1168-1184.

[5]. Casula, G. A., Montisci, G., & Rogier, H. (2020). A wearable textile RFID tag based on an eighth-mode substrate integrated waveguide cavity. IEEE Access, 8, 11116-11123.

[6]. Chi, Y. J., Lin, C. H., & Chiu, C. W. (2020). Design and modeling of a wearable textile rectenna array implemented on Cordura fabric for batteryless applications. Journal of Electromagnetic Waves and Applications, 34(13), 1782- 1796. https://doi.org/10.1080/09205071.2020.1787869

[7]. de Cos Gómez, M. E., Fernández Álvarez, H., Flórez Berdasco, A., & Las-Heras Andrés, F. (2020). Paving the Way to Eco-Friendly IoT Antennas: Tencel-Based Ultra-Thin Compact Monopole and Its Applications to ZigBee. Sensors, 20(13), 3658-3672. https://doi.org/10.3390/s201 33658

[8]. Hohmann, B., & Sakamoto, H. (2020). Bending stiffness estimation of creased textile membrane for space structure design. In AIAA Scitech 2020 Forum (p. 1899). https://doi.org/10.2514/6.2020-1899

[9]. Joshi, R., Hussin, E. F. N. M., Soh, P. J., Jamlos, M. F., Lago, H., Al-Hadi, A. A., & Podilchak, S. K. (2020). Dualband, dual-sense textile antenna with AMC backing for localization using GPS and WBAN/WLAN. IEEE Access, 8, 89468-89478.

[10]. Joshi, R., Hussin, E. F. N. M., Soh, P. J., Jamlos, M. F., Lago, H., Al-Hadi, A. A., & Podilchak, S. K. (2020). Dualband, dual-sense textile antenna with AMC backing for localization using GPS and WBAN/WLAN. IEEE Access, 8, 89468-89478.

[11]. Lin, X., Chen, Y., Gong, Z., Seet, B. C., Huang, L., & Lu, Y. (2020). Ultrawideband textile antenna for wearable microwave medical imaging applications. IEEE Transactions on Antennas and Propagation, 68(6), 4238- 4249.

[12]. Liu, H., & Ma, H. (2020, June). Design of Diamond Textile Antenna based on Flexible Material. In 2020, IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference (ITNEC) (Vol. 1, pp. 1672- 1675). IEEE.

[13]. Loss, C., Silveira, T. M., Pinho, P., Salvado, R., & de Carvalho, N. B. (2020, July). Design and Analysis of the Reproducibility of Wearable Textile Antennas. In 2020, 12^th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) (pp. 1-5). IEEE.

[14]. Mao, C. X., Zhou, Y., Wu, Y., Soewardiman, H., Werner, D. H., & Jur, J. S. (2020). Low-profile strip-loaded textile antenna with enhanced bandwidth and isolation for fullduplex wearable applications. IEEE Transactions on Antennas and Propagation, 68(9), 6527-6537.

[15]. Noor, S., & Ramli, N. (2020). A review of the wearable textile-based antenna using different textile materials for wireless applications. Open Journal of Science and Technology, 3(3), 237-244. https://doi.org/10.31580/ojst.v3 i3.1665

[16]. Pavec, M., Kapetanakis, T. N., Ioannidou, M. P., Nikolopoulos, C. D., Baklezos, A. T., Soukup, R., ... & Vardiambasis, I. O. (2020, September). Implementation of an all-textile bow-tie antenna for the 868 MHz ISM band. In 2020, International Symposium on Electromagnetic Compatibility-EMC EUROPE (pp. 1-3). IEEE.

[17]. Pinapati, S. P., Brittain, J., Caldow, A., & Fumeaux, C. (2020). Planar feeding techniques for wearable textile antennas. IEEE Transactions on Components, Packaging and Manufacturing Technology, 10(7), 1232-1239.

[18]. Potey, P. M., & Tuckley, K. (2020). Design of wearable textile antenna for low back radiation. Journal of Electromagnetic Waves and Applications, 34(2), 235-245. https://doi.org/10.1080/09205071.2019.1699170

[19]. Roy, P. S., Guha, M., & Roy, C. S. (2020, December). Wide band rectangular wearable microstrip ring antenna with textile substrate and its performance after washing. In Journal of Physics: Conference Series (Vol. 1706, No. 1, p. 012072). IOP Publishing.

[20]. Tsolis, A., Michalopoulou, A., & Alexandridis, A. A. (2020). Use of conductive zip and Velcro as a polarisation reconfiguration means of a textile patch antenna. IET Microwaves, Antennas & Propagation, 14(7), 684-693.

[21]. Vidya, C. S. S., Sree, B. B., & Sravanthi, C. (2020, February). A miniaturized on-body textile antenna based on substrate integrated waveguide technology. In 2020, IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS) (pp. 1-3). IEEE.

[22]. Xu, F., Zhang, K., & Qiu, Y. (2020). Light-weight, highgain three-dimensional textile structural composite antenna. Composites Part B: Engineering, 185, 1-8. https:// doi.org/10.1016/j.compositesb.2020.107781

[23]. Yalduz, H., Tabaru, T. E., Kilic, V. T., & Turkmen, M. (2020). Design and analysis of low profile and low SAR fulltextile UWB wearable antenna with metamaterial for WBAN applications. AEU-International Journal of Electronics and Communications, 126, 1-12. https://doi.org/10.1016/j.ae ue.2020.153465

[24]. Yang, H., & Liu, X. (2020). Wearable dual-band and dual-polarized textile antenna for on-and off-body communications. IEEE Antennas and Wireless Propagation Letters, 19(12), 2324-2328.

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

Current Issue Vol. 15 Issue 1

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Most Cited

Volume 11 Issue 1 September - November 2020

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

References

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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

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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

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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

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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

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Aananthi. S. V.* , Asma M. , Heena Hafeesa M. A. *, Helen Sulochana C. ****

Asokan V.* , K. Senthilkumar , Sharvani M. *, Shanthini Priya R. **, Rithika T. *, Ramya H. ****

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.

S. Prasad Jones Christydass* , R. Nandhini , J. Subhashini *, A. Sneha ****