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Smart farming has the potential to overcome the challenge of 2050 to feed 10 billion people. Both artificial intelligence (AI) and the internet of things (IoT) have become critical prerequisites to smart farming due to their high interoperability, sensors, and cutting-edge technologies. Extending the role of responsible leadership, this paper proposes an AI and IoT based smart farming system in Bangladesh. With a comprehensive literature review, this paper counsels the need to go beyond the simple application of traditional farming and irrigation practices and recommends implementing smart farming enabling responsible leadership to uphold sustainable agriculture. It contributes to the current literature of smart farming in several ways. First, this paper helps to understand the prospect and challenges of both AI and IoT and the requirement of smart farming in a nonwestern context. Second, it clarifies the interventions of responsible leadership into Bangladesh’s agriculture sector and justifies the demand for sustainable smart farming. Third, this paper is a step forward to explore future empirical studies for the effective and efficient use of AI and IoT to adopt smart farming. Finally, this paper will help policymakers to take responsible initiatives to plan and apply smart farming in a developing economy like Bangladesh.
Amlan Haque; Nahina Islam; Nahidul Samrat; Shuvashis Dey; Biplob Ray. Smart Farming through Responsible Leadership in Bangladesh: Possibilities, Opportunities, and Beyond. Sustainability 2021, 13, 4511 .
AMA StyleAmlan Haque, Nahina Islam, Nahidul Samrat, Shuvashis Dey, Biplob Ray. Smart Farming through Responsible Leadership in Bangladesh: Possibilities, Opportunities, and Beyond. Sustainability. 2021; 13 (8):4511.
Chicago/Turabian StyleAmlan Haque; Nahina Islam; Nahidul Samrat; Shuvashis Dey; Biplob Ray. 2021. "Smart Farming through Responsible Leadership in Bangladesh: Possibilities, Opportunities, and Beyond." Sustainability 13, no. 8: 4511.
In general, crack monitoring of coal mining conveyor belt is carried out by simple visual inspections which are found to be inefficient due to being quite labor-intensive and for providing inaccurate health conditions of the conveyor belt. In this paper, we propose a robust and low-cost passive ultra-high-frequency (UHF) based radio frequency identification (RFID) crack sensing system which allows the processing and detection of the presence of crack from the sensors’ data in real-time. A graphical user interface (GUI) is developed and integrated into a UHF RFID commercial reader to collect and process the received signal strength indicator (RSSI) from the sensors. A theoretical model of RSSI in the presence of a crack in the conveyor belt is introduced here. The investigation on RSSI measurement has been carried out for both the scenarios when the belt is static and in motion. The moving belt RSSI measurement depicts two different cases. The first case involves the interrogation of embedded sensors by using a single reader antenna while multiple antennas are used for the second case. Experimental results demonstrate that the proposed monitoring system can offer highly accurate early detection of a crack having a width of as little as 0.5 mm. Moreover, the proposed GUI can enhance the system performance in processing the sensors’ data using multiple reader antennas when the belt is in high motion. The experimental results have revealed promising opportunities to adapt the proposed system in a realistic scenario for monitoring the health of soft rock conveyor belts.
Omar Salim; Shuvashis Dey; Hossein Masoumi; Nemai Karmakar. Crack Monitoring System for Soft Rock Mining Conveyor Belt using UHF RFID Sensors. IEEE Transactions on Instrumentation and Measurement 2021, PP, 1 -1.
AMA StyleOmar Salim, Shuvashis Dey, Hossein Masoumi, Nemai Karmakar. Crack Monitoring System for Soft Rock Mining Conveyor Belt using UHF RFID Sensors. IEEE Transactions on Instrumentation and Measurement. 2021; PP (99):1-1.
Chicago/Turabian StyleOmar Salim; Shuvashis Dey; Hossein Masoumi; Nemai Karmakar. 2021. "Crack Monitoring System for Soft Rock Mining Conveyor Belt using UHF RFID Sensors." IEEE Transactions on Instrumentation and Measurement PP, no. 99: 1-1.
This paper investigates the design and practical implementation of a novel Super Wide Band (SWB) antenna on a flexible substrate. The antenna is designed on the Ultralam 3850 substrate having a compact dimension of 60×40×0.1 mm3. This antenna has an operating frequency band from 1.74 to 100 GHz with a bandwidth (BW) ratio of approximately 57.47:1. Such an extended frequency coverage makes this antenna operable in a wide variety of wireless application areas, including 5G and the Internet of Things (IoT). The simulated performance of the designed antenna is analyzed here with respect to different antenna parameters, including reflection coefficient, radiation pattern, gain, efficiency, and surface current. The proposed antenna prototype is fabricated, and experimental validation is provided through the measurement using a programmable network analyzer (PNA).
Shuvashis Dey; Shamsul Arefin; Nemai C. Karmakar. Design and Experimental Analysis of a Novel Compact and Flexible Super Wide Band Antenna for 5G. IEEE Access 2021, PP, 1 -1.
AMA StyleShuvashis Dey, Shamsul Arefin, Nemai C. Karmakar. Design and Experimental Analysis of a Novel Compact and Flexible Super Wide Band Antenna for 5G. IEEE Access. 2021; PP (99):1-1.
Chicago/Turabian StyleShuvashis Dey; Shamsul Arefin; Nemai C. Karmakar. 2021. "Design and Experimental Analysis of a Novel Compact and Flexible Super Wide Band Antenna for 5G." IEEE Access PP, no. 99: 1-1.
This paper presents the design and analysis of a paper-based chipless RFID sensor for wetness content measurement in plant leaves. The sensor is designed using a passive microwave resonator to measure the ambient physical parameter. The resonator is designed with a rectangular loop inductively coupled with an interdigital capacitor. The experimental analysis of the designed sensor is illustrated here to prove its efficacy. The resonator provides adequate backscattered signal for wireless measurement in the microwave frequency band. When interrogated with a couple of UWB antennas and a VNA, it yields accurate leaf wetness response of the plant. The commercial competence of this sensing device is validated through its experimental analysis on three different types of leaf samples. This sensor is suitable for plant health monitoring in any small-scale gardening applications such as nurseries and greenhouses.
Shuvashis Dey; Emran Md. Amin; Nemai Chandra Karmakar. Paper Based Chipless RFID Leaf Wetness Detector for Plant Health Monitoring. IEEE Access 2020, 8, 1 -1.
AMA StyleShuvashis Dey, Emran Md. Amin, Nemai Chandra Karmakar. Paper Based Chipless RFID Leaf Wetness Detector for Plant Health Monitoring. IEEE Access. 2020; 8 ():1-1.
Chicago/Turabian StyleShuvashis Dey; Emran Md. Amin; Nemai Chandra Karmakar. 2020. "Paper Based Chipless RFID Leaf Wetness Detector for Plant Health Monitoring." IEEE Access 8, no. : 1-1.
A novel chipless RFID based structural health monitoring sensor is proposed in this paper. By using the time domain reflectometry (TDR) based technique, this device enables a wireless, low-cost and pervasive sensing system for detecting the presence of crack in a structure. The proposed sensor is designed on the Taconic TLX-0 substrate and it integrates a super wide band (SWB) antenna with a long transmission line. The SWB antenna covers a bandwidth of 2-20 GHz which offers extremely short time domain pulses. This eventually enables a high-resolution crack sensing scheme that results in higher accuracy and greater precision. A thorough analysis on the designed sensors with a straight and a meandered transmission line is carried out and a comparative study between the SWB and UWB technologies is performed to imply the superiority of the proposed technique. The experimental results from a fabricated prototype of the sensor validate the theoretical analysis.
Shuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. Novel Chipless RFID High Resolution Crack Sensor Based on SWB Technology. IEEE Sensors Journal 2020, 21, 2908 -2920.
AMA StyleShuvashis Dey, Prasanna Kalansuriya, Nemai Chandra Karmakar. Novel Chipless RFID High Resolution Crack Sensor Based on SWB Technology. IEEE Sensors Journal. 2020; 21 (3):2908-2920.
Chicago/Turabian StyleShuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. 2020. "Novel Chipless RFID High Resolution Crack Sensor Based on SWB Technology." IEEE Sensors Journal 21, no. 3: 2908-2920.
This paper investigates the design and practical implementation of a Super Wide Band (SWB) antenna along with the application of fundamental bandwidth limitation theory of small antennas in the proposed design. The antenna is designed on a material with permittivity, εr = 3 where the patch metallization height is maintained as 0.035 mm. The designed antenna is then modified by enhancing the copper patch with an additional layer of 28.5 mm thickness. The proposed antenna achieves a huge frequency range with a ratio bandwidth starting from 96.96:1 to as high as 115.10: 1. The designed antenna operating band with thinner height starts from 1.65 to 160 GHz while with the added patch metallic height, the antenna operates from a minimum of 1.39 to 160 GHz with an average nominal bandwidth of more than 158 GHz. By enhancing the patch height, the antenna spherical volume is utilized more efficiently. Using this principle, the antenna impedance bandwidth is augmented while a reduction in electrical size is achieved. A comparison with the fundamental theories by Chu and Mclean illustrates that the designed SWB antenna electrical size exceeds Mclean and nearly touches the Chu fundamental limit curve. This eventually offers the maximized bandwidth with the most compact size for an SWB antenna. The designed antenna with thinner patch metallization height is practically fabricated and measured up to 67 GHz using Vector Network Analyzer to provide experimental validation.
Shuvashis Dey; Nemai Chandra Karmakar. Design of novel super wide band antenna close to the fundamental dimension limit theory. Scientific Reports 2020, 10, 1 -15.
AMA StyleShuvashis Dey, Nemai Chandra Karmakar. Design of novel super wide band antenna close to the fundamental dimension limit theory. Scientific Reports. 2020; 10 (1):1-15.
Chicago/Turabian StyleShuvashis Dey; Nemai Chandra Karmakar. 2020. "Design of novel super wide band antenna close to the fundamental dimension limit theory." Scientific Reports 10, no. 1: 1-15.
This paper presents the concept of a chipless RFID based pervasive crack sensing scheme for structural health monitoring (SHM). This scheme includes the design of a novel “Smart Skin” sensor that can provide contiguous or non-discretized detection of a structural deformation at any point on its surface. The proposed sensor can identify the growth and propagation of cracks in an area of a building structure. Smart skin sensor has a sensitive microwave structure made of cascaded novel split box resonators coupled to a coplanar waveguide (CPW) based transmission line. This enables it to offer an uninterrupted crack detection along with the ability to detect multiple structural perturbations simultaneously. The proposed sensor can detect a crack width of as little as 0.5 mm having any orientation; namely, vertical, horizontal and angled cracks. In addition to crack detection, the sensing tag can also provide distinctive response for moisture ingress into the structure. The paper illustrates the theory behind choosing the split box resonator in this sensing scheme followed by the sensor design. It also provides a thorough analysis of the sensor, based on the simulated and experimentally obtained results. Both these results conform to each other very well which lays the foundation to use machine learning as a future work, in detecting random structural cracks. Such results incorporate many distinguishing features which enables an estimation of crack location and orientations using visual and machine-based classification approaches. The repeatability of the obtained results is also established through the experimental analysis.
Shuvashis Dey; Rahul Bhattacharyya; Sanjay E. Sarma; Nemai Chandra Karmakar. A Novel “Smart Skin” Sensor for Chipless RFID-Based Structural Health Monitoring Applications. IEEE Internet of Things Journal 2020, 8, 3955 -3971.
AMA StyleShuvashis Dey, Rahul Bhattacharyya, Sanjay E. Sarma, Nemai Chandra Karmakar. A Novel “Smart Skin” Sensor for Chipless RFID-Based Structural Health Monitoring Applications. IEEE Internet of Things Journal. 2020; 8 (5):3955-3971.
Chicago/Turabian StyleShuvashis Dey; Rahul Bhattacharyya; Sanjay E. Sarma; Nemai Chandra Karmakar. 2020. "A Novel “Smart Skin” Sensor for Chipless RFID-Based Structural Health Monitoring Applications." IEEE Internet of Things Journal 8, no. 5: 3955-3971.
Chipless RFID tags can be used as sensors to monitor the health of coal transporting conveyor belts. However, the proximity to different dielectric materials of the conveyor belt‘s structure influences the sensor behavior dramatically. In this paper, the effect of a practical belt's composition layers with varying dielectric properties on a chipless tag is investigated. The significant change in the tag‘s resonant frequency and notch depth demonstrates the prominence of material properties on tag response. This investigation would help to improve the system modelling and sensor‘s performance when the chipless RFID sensors are embedded in coal mining conveyor belt.
Fatema-Tuz Zohra; Omar Salim; Shuvashis Dey; Hossein Masoumi; Nemai Karmakar. Investigation of Chipless RFID Tag Performance in Coal Mining Conveyor Belt. 2020 4th Australian Microwave Symposium (AMS) 2020, 1 -2.
AMA StyleFatema-Tuz Zohra, Omar Salim, Shuvashis Dey, Hossein Masoumi, Nemai Karmakar. Investigation of Chipless RFID Tag Performance in Coal Mining Conveyor Belt. 2020 4th Australian Microwave Symposium (AMS). 2020; ():1-2.
Chicago/Turabian StyleFatema-Tuz Zohra; Omar Salim; Shuvashis Dey; Hossein Masoumi; Nemai Karmakar. 2020. "Investigation of Chipless RFID Tag Performance in Coal Mining Conveyor Belt." 2020 4th Australian Microwave Symposium (AMS) , no. : 1-2.
This paper focuses on the design and analysis of an inexpensive novel chipless RFID sensing scheme for soil moisture and salinity content detection. The sensor is designed at the UHF RFID band so that it can be tweaked easily to a chip-based RFID sensor. Alongside the designed sensor, a theoretical soil model with different moisture and salinity levels is simulated here. A fabricated prototype is used to measure the variation of moisture and salinity levels in sandy soil. Both the simulated and measured results exhibit frequency shift of sensor resonance with moisture content variation at non-saline conditions. However, if the soil is saline, the resonance amplitude gets reduced with increased salinity levels and exhibits moisture content independence and hence no frequency variation.
Shuvashis Dey; Rahul Bhattacharyya; Nemai Karmakar; Sanjay Sarma. A Folded Monopole Shaped Novel Soil Moisture and Salinity Sensor for Precision Agriculture Based Chipless RFID Applications. 2019 IEEE MTT-S International Microwave and RF Conference (IMARC) 2019, 1 -4.
AMA StyleShuvashis Dey, Rahul Bhattacharyya, Nemai Karmakar, Sanjay Sarma. A Folded Monopole Shaped Novel Soil Moisture and Salinity Sensor for Precision Agriculture Based Chipless RFID Applications. 2019 IEEE MTT-S International Microwave and RF Conference (IMARC). 2019; ():1-4.
Chicago/Turabian StyleShuvashis Dey; Rahul Bhattacharyya; Nemai Karmakar; Sanjay Sarma. 2019. "A Folded Monopole Shaped Novel Soil Moisture and Salinity Sensor for Precision Agriculture Based Chipless RFID Applications." 2019 IEEE MTT-S International Microwave and RF Conference (IMARC) , no. : 1-4.
This paper exemplifies the design and analysis of an inexpensive, compact high data capacity chipless RFID tag on flexible paper substrate. The size of the overall tag with integrated antennas is similar to that of a credit card. The designed tag uses polarization diversity to provide a bit capacity of up to 30 bits in the short range UWB band of 22-26.5 GHz. A systematic progression on to the incorporation of increased number of bit capacity is depicted hereby. Along with frequency variation, this paper also proposes the scheme for bit detection using phase difference determination in order to increase robustness. An interrogation process of the proposed tag to extract the encoded information is demonstrated here and the resulting analysis establishes the reliability of the designed tag.
Shuvashis Dey; Nemai Chandra Karmakar. Towards an inexpensive paper based flexible chipless RFID tag with increased data capacity. 2017 Eleventh International Conference on Sensing Technology (ICST) 2017, 1 -5.
AMA StyleShuvashis Dey, Nemai Chandra Karmakar. Towards an inexpensive paper based flexible chipless RFID tag with increased data capacity. 2017 Eleventh International Conference on Sensing Technology (ICST). 2017; ():1-5.
Chicago/Turabian StyleShuvashis Dey; Nemai Chandra Karmakar. 2017. "Towards an inexpensive paper based flexible chipless RFID tag with increased data capacity." 2017 Eleventh International Conference on Sensing Technology (ICST) , no. : 1-5.
This paper demonstrates the study and design of a compact and inexpensive chipless RFID tag with increased data capacity on flexible substrates like plastic or paper. Along with the integrated antennas, the overall size of this tag is similar to that of a credit card. In this case, polarization diversity is used to provide a bit capacity of up to 10 bits in the UWB short range RADAR band of 22-26.5 GHz. An interrogation process of the printed tag prototype to extract the encoded information is demonstrated here and the measured results ensure the validity of the proposed design.
Shuvashis Dey; Nemai Chandra Karmakar. An IoT empowered flexible chipless RFID tag for low cost item identification. 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) 2017, 179 -182.
AMA StyleShuvashis Dey, Nemai Chandra Karmakar. An IoT empowered flexible chipless RFID tag for low cost item identification. 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC). 2017; ():179-182.
Chicago/Turabian StyleShuvashis Dey; Nemai Chandra Karmakar. 2017. "An IoT empowered flexible chipless RFID tag for low cost item identification." 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) , no. : 179-182.
This study focuses on the design and analysis of a low cost compact high data capacity chipless RFID tag on flexible mylar plastic substrate. The size of the overall tag with integrated antennas is less than a credit card. The designed tag uses polarization diversity to provide a bit capacity of up to 20 bits in the short range UWB band of 22-26.5 GHz. A technique for enhancing the minimum detection depth is applied here to increase the readability of the tag. Along with frequency variation, this paper also proposes the scheme for bit detection using phase difference determination in order to increase robustness. A printed prototype of the proposed design and its measured result is also illustrated in the paper.
Shuvashis Dey; Nemai Chandra Karmakar. Design and analysis of a novel low cost high data capacity chipless RFID tag on plastic substrate. 2016 46th European Microwave Conference (EuMC) 2016, 1327 -1330.
AMA StyleShuvashis Dey, Nemai Chandra Karmakar. Design and analysis of a novel low cost high data capacity chipless RFID tag on plastic substrate. 2016 46th European Microwave Conference (EuMC). 2016; ():1327-1330.
Chicago/Turabian StyleShuvashis Dey; Nemai Chandra Karmakar. 2016. "Design and analysis of a novel low cost high data capacity chipless RFID tag on plastic substrate." 2016 46th European Microwave Conference (EuMC) , no. : 1327-1330.
This study focuses on the electromagnetic characterization of a novel low cost UHF RFID sensor for soil moisture and salinity content detection. A theoretical model of soil with different moisture and salinity levels is simulated along with the designed sensor. A fabricated prototype is used to measure the variation of moisture level and NaCl concentration in sandy soil. Both the simulated and measured results exhibit frequency shift of s-parameter with moisture content variation at non-saline conditions. However, if the soil is saline, the return loss amplitude gets reduced with increased salinity levels without having a significant frequency variation due to moisture contents. This allows a further optimization of the proposed sensor at the desired band and provides design robustness. A moisture content variation of as small as 35 ml along with a salinity variation of only 4 grams could be detected using the designed sensor.
Shuvashis Dey; Nemai Karmakar; Rahul Bhattacharyya; Sanjay Sarma. Electromagnetic characterization of soil moisture and salinity for UHF RFID applications in precision agriculture. 2016 46th European Microwave Conference (EuMC) 2016, 616 -619.
AMA StyleShuvashis Dey, Nemai Karmakar, Rahul Bhattacharyya, Sanjay Sarma. Electromagnetic characterization of soil moisture and salinity for UHF RFID applications in precision agriculture. 2016 46th European Microwave Conference (EuMC). 2016; ():616-619.
Chicago/Turabian StyleShuvashis Dey; Nemai Karmakar; Rahul Bhattacharyya; Sanjay Sarma. 2016. "Electromagnetic characterization of soil moisture and salinity for UHF RFID applications in precision agriculture." 2016 46th European Microwave Conference (EuMC) , no. : 616-619.
This paper focuses on the design and feasibility analysis of conventional microstrip patch antennas as chipless RFID strain sensors. Three sensing antennas with different substrates are designed and their structural deformation due to different types of applied strain is theoretically analyzed. These theoretical deformation results are used to calculate the corresponding resonance frequency and quality factor deviation to determine the maximum amount of stress the antennas can tolerate. Thus a novel analysis is presented to determine the acceptability of the designed antennas as strain sensors.
Shuvashis Dey; Nemai Chandra Karmakar. Chipless RFID strain sensors: A novel feasibility analysis in terms of conventional patch antennas. 2015 IEEE MTT-S International Microwave and RF Conference (IMaRC) 2015, 72 -75.
AMA StyleShuvashis Dey, Nemai Chandra Karmakar. Chipless RFID strain sensors: A novel feasibility analysis in terms of conventional patch antennas. 2015 IEEE MTT-S International Microwave and RF Conference (IMaRC). 2015; ():72-75.
Chicago/Turabian StyleShuvashis Dey; Nemai Chandra Karmakar. 2015. "Chipless RFID strain sensors: A novel feasibility analysis in terms of conventional patch antennas." 2015 IEEE MTT-S International Microwave and RF Conference (IMaRC) , no. : 72-75.
In this paper, design of a low-profile, coplanar waveguide fed elliptical patch Super Wide Band (SWB) multiple input multiple output (MIMO) antenna for various applications are presented. Two planar elliptical patch antennas with Microstrip-feed are used as the elements of the MIMO antenna. PTFE (Polytetrafluoroethylene) is used as dielectric substrate whose relative permittivity is 3.5. The proposed antenna occupies a fractional bandwidth of more than 172.12% (2.2473-30 GHz) which covers frequency range for all types of UWB applications along with some other common wireless communication systems such as ISM, Wi-Fi, WiMax, part of LTE and so on. Performance analysis of designed antenna is carried out in free space in terms of reflection coefficient, radiation pattern and voltage standing wave ratio (VSWR) and the results show that, this antenna could be a very suitable one for above mentioned applications.
Ashif Islam Oni; Shahriar Hasan Shehab; Shahreen Hassan; Shuvashis Dey. Design and analysis of a low-profile, elliptical patch Super Wide Band (SWB) MIMO antenna. 2015 International Conference on Advances in Electrical Engineering (ICAEE) 2015, 117 -120.
AMA StyleAshif Islam Oni, Shahriar Hasan Shehab, Shahreen Hassan, Shuvashis Dey. Design and analysis of a low-profile, elliptical patch Super Wide Band (SWB) MIMO antenna. 2015 International Conference on Advances in Electrical Engineering (ICAEE). 2015; ():117-120.
Chicago/Turabian StyleAshif Islam Oni; Shahriar Hasan Shehab; Shahreen Hassan; Shuvashis Dey. 2015. "Design and analysis of a low-profile, elliptical patch Super Wide Band (SWB) MIMO antenna." 2015 International Conference on Advances in Electrical Engineering (ICAEE) , no. : 117-120.
The Internet of Everything (IoE), also called ambient intelligence, is the subject of intense worldwide research with the goal of interconnecting a large number of "things": intelligent sensors, tags, mobile phones-the list is virtually endless. These new smart objects and sensors will be able to produce information about their environment and share it with the Internet via wireless communication [1]. Radio-frequency identification (RFID) technology can have a significant impact in this regard. It is a wireless data-capturing technique that utilizes RF energy for automatically extracting the identity of remotely placed objects. The RFID tag has the potential to replace the barcode because of its manifold benefits, including its long reading range (greater than 10 m) and non-line-of-sight reading capability [2], [3].
Shuvashis Dey; Jhantu Kumar Saha; Nemai Chandra Karmakar. Smart Sensing: Chipless RFID Solutions for the Internet of Everything. IEEE Microwave Magazine 2015, 16, 26 -39.
AMA StyleShuvashis Dey, Jhantu Kumar Saha, Nemai Chandra Karmakar. Smart Sensing: Chipless RFID Solutions for the Internet of Everything. IEEE Microwave Magazine. 2015; 16 (10):26-39.
Chicago/Turabian StyleShuvashis Dey; Jhantu Kumar Saha; Nemai Chandra Karmakar. 2015. "Smart Sensing: Chipless RFID Solutions for the Internet of Everything." IEEE Microwave Magazine 16, no. 10: 26-39.
This paper presents a design of an elliptical patch textile antenna having operating frequency at 2.45 GHz for RFID application. The proposed antenna consists of elliptical patch on Dacron fabric (□ r =3) as substrate followed by a partial ground at the back of the substrate. The overall size of the proposed antenna is 45×38 mm 2 . The proposed antenna has a gain of 3.386 dB with VSWR of 1.07. The performance of the proposed antenna is analyzed under four angles of bending. The effect of change in feed length is also focused. The characteristics, low profile and compact size of the antenna depicts as a potential candidate for RFID application. CST Microwave Studio package is used for design and simulation purpose.
Shahriar Hasan Shehab; Shahreen Hassan; Ashif Islam Oni; Shuvashis Dey; Munir Hassan. Design and evaluation of an elliptical patch textile antenna for RFID application and bending consequences. 2015 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT) 2015, 1 -4.
AMA StyleShahriar Hasan Shehab, Shahreen Hassan, Ashif Islam Oni, Shuvashis Dey, Munir Hassan. Design and evaluation of an elliptical patch textile antenna for RFID application and bending consequences. 2015 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT). 2015; ():1-4.
Chicago/Turabian StyleShahriar Hasan Shehab; Shahreen Hassan; Ashif Islam Oni; Shuvashis Dey; Munir Hassan. 2015. "Design and evaluation of an elliptical patch textile antenna for RFID application and bending consequences." 2015 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT) , no. : 1-4.
This Study focuses on the design and analysis of a novel low cost time domain reflectometry (TDR) based soil moisture sensor. This type of sensor enables to employ an efficient irrigation system for agricultural sector by obtaining accurate information about soil moisture profiles. The dielectric properties of the proposed sensor vary with volumetric water content of soil which instigates a variation in the sensor's TDR amplitude level. A critical analysis on the feasibility of the designed sensor is carried out here along with an experimental validation of a developed prototype.
Shuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. A novel time domain reflectometry based chipless RFID soil moisture sensor. 2015 IEEE MTT-S International Microwave Symposium 2015, 1 -4.
AMA StyleShuvashis Dey, Prasanna Kalansuriya, Nemai Chandra Karmakar. A novel time domain reflectometry based chipless RFID soil moisture sensor. 2015 IEEE MTT-S International Microwave Symposium. 2015; ():1-4.
Chicago/Turabian StyleShuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. 2015. "A novel time domain reflectometry based chipless RFID soil moisture sensor." 2015 IEEE MTT-S International Microwave Symposium , no. : 1-4.
This paper proposes a novel chipless RFID sensor that offers a high resolution crack detection technique and enables pervasive wireless crack sensing with greater accuracy and higher precision. The proposed sensor uses an antenna with a super wide band (SWB) ranging from 1-20 GHz which provides the high resolution through its extremely short time domain pulse. A critical analysis on the computational results is carried out and a comparative analysis on the SWB and UWB sensor is performed to indicate the proposed sensor's superiority.
Shuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. Chipless RFID based high resolution crack sensing through SWB technology. 2014 IEEE International Microwave and RF Conference (IMaRC) 2014, 330 -333.
AMA StyleShuvashis Dey, Prasanna Kalansuriya, Nemai Chandra Karmakar. Chipless RFID based high resolution crack sensing through SWB technology. 2014 IEEE International Microwave and RF Conference (IMaRC). 2014; ():330-333.
Chicago/Turabian StyleShuvashis Dey; Prasanna Kalansuriya; Nemai Chandra Karmakar. 2014. "Chipless RFID based high resolution crack sensing through SWB technology." 2014 IEEE International Microwave and RF Conference (IMaRC) , no. : 330-333.
This paper provides a short overview on the state of the art in electromagnetic transduction based chipless RFID sensors. These types of sensors can be used for various applications including structural health monitoring, pressure, airflow and displacement detection, temperature, humidity, partial discharge monitoring and so on. A novel concept of high resolution crack sensing using super wideband antenna is also introduced here along with a brief review on airflow and partial discharge sensors.
Shuvashis Dey; Emran Md Amin; Jhantu Kumar Saha; Nemai Chandra Karmakar. A brief overview of chipless RFID sensors with EM transduction. 8th International Conference on Electrical and Computer Engineering 2014, 765 -768.
AMA StyleShuvashis Dey, Emran Md Amin, Jhantu Kumar Saha, Nemai Chandra Karmakar. A brief overview of chipless RFID sensors with EM transduction. 8th International Conference on Electrical and Computer Engineering. 2014; ():765-768.
Chicago/Turabian StyleShuvashis Dey; Emran Md Amin; Jhantu Kumar Saha; Nemai Chandra Karmakar. 2014. "A brief overview of chipless RFID sensors with EM transduction." 8th International Conference on Electrical and Computer Engineering , no. : 765-768.