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Papers by Hemant Kumar Gupta
Progress in electromagnetics research C. Pier C, 2024
This paper describes the design of an antenna and the development of a brain phantom model to val... more This paper describes the design of an antenna and the development of a brain phantom model to validate the simulation results. The fabricated design of the phantom is interfaced with fabricated antenna, and the tumour in the fabricated phantom brain model is detected by return loss variation of the transmitted and reflected signals. Antennas are designed at the 2.45 GHz ISM (Industrial Science Medical) band and 5.8 GHz, and the lengths and widths for rectangular microstrip patch antenna (RMPA) have been calculated from the standard design equations. Different types of defects are applied in the front plane and ground plane of the antenna. Defect Ground Structures (DGSs) are applied to make the antenna ultra-wideband (UWB), because UWB is the basic requirement of antenna used in tumour detection applications. The design of gelatine brain phantom models with tumour and tumour-free is described. Finally, the brain phantom design is interfaced to each deigned antenna. The tumour in brain is detected by variations in the incident and reflected wave reflection loss parameter.
International Journal of Hybrid Information Technology, 2016
Brain tumour is the largest problem in the world. Few researchers have worked in that area. In th... more Brain tumour is the largest problem in the world. Few researchers have worked in that area. In the paper brain tumour is detected by the three different parameter of the proposed antenna namely return-loss of the antenna, current density of the brain phantom model with tumour and without tumour and specific absorption rate (SAR) with and without tumour. None of the previous work detects a tumour by three different parameter simultaneously. Initially the proposed antenna is designed at 2.45GHz and then applies different technology to make it ultra wide band. Antenna frequency is shifted and it become the ultra wide band and gives a bandwidth of 2.89GHz.S 11 parameter of antenna achieved maximum at 7.624GHz that is 45.76dB. Found current density of the antenna is 770.6A/m 2 , SAR of the antenna is 2.67*10 6 Watt/m 3 .Brain is assumed as a single layer Brain Phantom model in which brain is considered as centre radius of sphere of 10mm radius and placed in contact with upper part of the antenna, dielectric constant of brain is assumed as 45.8.it gives a return loss with brain model is 31.89dB at 7.61GHz and current density is 801.24A/m 2 , SAR of the brain phantom model with antenna is 3.15*10 6 Watt/m 3 .Now triangular shape tumor is assumed with dielectric constant of the tumor is 52.06 and it gives a return loss with tumor 32.26 at 7.544GHz.current density with tumor is 960.3A/m 2 , SAR of the phantom model with tumor and antenna is 3.069*10 6 A/m 2 .The paper detect tumors by three different parameter simultaneously that is very important aspect.
International Journal of Electronics and Electrical Engineering, 2014
Wireless communication is need of world. In this era life cannot imagine without it. In this pape... more Wireless communication is need of world. In this era life cannot imagine without it. In this paper it has been designed a microstrip low pass filter for L-band Application. Microstrip Filter is designed from the methods of Step impedance low pass prototype filter, basic property of microstrip filter like simulated design, return loss, amplitude frequency graph and smith chart discussed. Finally it is shown that-3dB return loss is shown at the frequency of 1.584GHz and this frequency come in the Lband so this filters showing a very sharp cutoff and used for different application of L-band (1-2GHz).
International Journal of Engineering & Technology, 2012
The purpose of this paper is to design a liquid yagi uda antenna at 1 GHz for L-band Application.... more The purpose of this paper is to design a liquid yagi uda antenna at 1 GHz for L-band Application. The designing formulas and structure were discussed. The antenna characteristics like return loss with different liquids are filled in the all the yagi elements were also discussed in this paper.
International Journal of Engineering & Technology, 2012
The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purp... more The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purpose in wireless communication. We have designed a circular microstrip patch antenna (CMPA) for 1.3GHz used in wireless communication. We have designed CMPA with 2slit slot, 3slit-slot, and 6slit-slot and observed results for different designs, and finally it is shown that as slit-slot increases to six slit-slot Return-loss and Bandwidth of CMPA are reduced.The multiband antenna use for wireless communication in different applications. Bandwidth improvement is about 63.3%, 72.10% and 37.5% respectively in two, three and six slit-slotted patch when compared to their basic design bandwidth band. Antenna is changed to multiband by slit-slot Circular Microstrip Patch Antenna (CMPA).
International Journal of Electronics and Electrical Engineering, 2013
In food adulteration, the presence of other substances is to be detected in liquid food and for t... more In food adulteration, the presence of other substances is to be detected in liquid food and for this purpose a monopole antenna is investigated in this paper. The related antenna design and variation in resonant frequency of monopole antenna in different liquid was also discussed in this paper.
International Journal of Electronics and Electrical Engineering, 2014
This paper presents on modified the dielectric properties of liquid with varying salinity, that w... more This paper presents on modified the dielectric properties of liquid with varying salinity, that was based on yagi-uda structure. Dielectric resonator antennas (DRAs) can be made with a wide range of materials and allow many excitation methods [1]. Pure water does not work at high frequency (> 1 GHz), but increases the salinity of water that modifies the dielectric properties of water. The resonator column height determined the operating frequency [2]. These antenna shows that the salinity increases the antenna was resonated at different frequency.
International Journal of Bio-Science and Bio-Technology, 2016
This paper presents the research work about the detection technique for brain tumour by microwave... more This paper presents the research work about the detection technique for brain tumour by microwave imaging. Slotted RMPA (Rectangular Micro-strip Patch Antenna) and Modified Ground Plane ultra wide band antenna has been proposed which is having the frequency range from 6GHz to 10GHz. In this work bandwidth achieved by the proposed antenna is approximate about the frequency of 4GHz that is large enough for early detection of brain tumor. Single layer brain phantom model is developed using CST-MWS which is an approximate model of the brain in which sphere is considered as a brain. The dielectric permittivity of the phantom brain model is 45.8 and its conductivity is .77s/m. Proposed antenna is placed in contact with the phantom brain having a cubical tumor of 5mm 3 with dielectric constant 54.2 and conductivity 2.62s/m. current density is increased approximate two times compare to the cases when brain having no tumor and SAR of the system is also considerably increased. The result shows the better improvement as compared to the previous results proposed by several researchers time to time.
International Journal of Electronics and Electrical Engineering, 2013
Cellular Mobile Communication is need of world. In this era life cannot imagine without cell phon... more Cellular Mobile Communication is need of world. In this era life cannot imagine without cell phone. In this paper it has been designed a two antenna for GSM communication at 1800MHz. First antenna is Rectangular Microstrip Patch Antenna(RMPA), and second one is Slit Slotted Rectangular Microstrip Patch Antenna(SSRMPA). Basic property of both the antenna like simulated design, Returnloss, Electric field Distribution, Radiation Pattern are discussed. Finally it is shown that Return Loss of Antenna in Slit-Slot Patch is decreased about 92.52%, and antenna Directivity is also increased a bit, and Total Efficiency of slit-slot RMPA is increased about 12.48% Slit-Slot Rectangular Microstrip Patch Antenna also Reduces the size of antenna which is always a basic need of cell phone antenna design system. Slit Slotted RMPA also improving the result by lowering the return loss at 92.52% almost all losses removed.
Materials Today: Proceedings, 2020
Abstract In this paper Rectangular Microstrip patch Antenna (RMPA) with symmetrical shaped DGS pa... more Abstract In this paper Rectangular Microstrip patch Antenna (RMPA) with symmetrical shaped DGS pattern is proposed for brain tumor detection by microwave imaging. Ultra wide band antenna is the requirement of the today’s world for various application as real time video conferencing, live streaming, remote sensing, Microwave imaging. Initially antenna is designed at one frequency of ISM band, and then symmetrical shaped DGS is applied to the antenna for making it ultra wide band. Antenna designed at 5.8 GHz by reference equations. It gives reflection loss S11 12.71dB at 5.7394GHz.Dielectric material used in the antenna is Rogers’s 4004 lossy.Antenna also gives the bandwidth of 89MHz, nowground plane of the antenna is cut by the symmetrical rectangular slot of dimension 22*30mm2.Opposite coroner of ground plane is also cut by rectangular slots 10*8mm2 and 5*3mm2 alternatively. Antenna with modified ground plane gives the minimum losses at 5.5GHz it is 29.81dB and also give maximum bandwidth 1.91GHz.Achieved Bandwidth is in ultra wide band range so designed antenna can be used for brain tumor detection in biomedical application
Progress in electromagnetics research C. Pier C, 2024
This paper describes the design of an antenna and the development of a brain phantom model to val... more This paper describes the design of an antenna and the development of a brain phantom model to validate the simulation results. The fabricated design of the phantom is interfaced with fabricated antenna, and the tumour in the fabricated phantom brain model is detected by return loss variation of the transmitted and reflected signals. Antennas are designed at the 2.45 GHz ISM (Industrial Science Medical) band and 5.8 GHz, and the lengths and widths for rectangular microstrip patch antenna (RMPA) have been calculated from the standard design equations. Different types of defects are applied in the front plane and ground plane of the antenna. Defect Ground Structures (DGSs) are applied to make the antenna ultra-wideband (UWB), because UWB is the basic requirement of antenna used in tumour detection applications. The design of gelatine brain phantom models with tumour and tumour-free is described. Finally, the brain phantom design is interfaced to each deigned antenna. The tumour in brain is detected by variations in the incident and reflected wave reflection loss parameter.
International Journal of Hybrid Information Technology, 2016
Brain tumour is the largest problem in the world. Few researchers have worked in that area. In th... more Brain tumour is the largest problem in the world. Few researchers have worked in that area. In the paper brain tumour is detected by the three different parameter of the proposed antenna namely return-loss of the antenna, current density of the brain phantom model with tumour and without tumour and specific absorption rate (SAR) with and without tumour. None of the previous work detects a tumour by three different parameter simultaneously. Initially the proposed antenna is designed at 2.45GHz and then applies different technology to make it ultra wide band. Antenna frequency is shifted and it become the ultra wide band and gives a bandwidth of 2.89GHz.S 11 parameter of antenna achieved maximum at 7.624GHz that is 45.76dB. Found current density of the antenna is 770.6A/m 2 , SAR of the antenna is 2.67*10 6 Watt/m 3 .Brain is assumed as a single layer Brain Phantom model in which brain is considered as centre radius of sphere of 10mm radius and placed in contact with upper part of the antenna, dielectric constant of brain is assumed as 45.8.it gives a return loss with brain model is 31.89dB at 7.61GHz and current density is 801.24A/m 2 , SAR of the brain phantom model with antenna is 3.15*10 6 Watt/m 3 .Now triangular shape tumor is assumed with dielectric constant of the tumor is 52.06 and it gives a return loss with tumor 32.26 at 7.544GHz.current density with tumor is 960.3A/m 2 , SAR of the phantom model with tumor and antenna is 3.069*10 6 A/m 2 .The paper detect tumors by three different parameter simultaneously that is very important aspect.
International Journal of Electronics and Electrical Engineering, 2014
Wireless communication is need of world. In this era life cannot imagine without it. In this pape... more Wireless communication is need of world. In this era life cannot imagine without it. In this paper it has been designed a microstrip low pass filter for L-band Application. Microstrip Filter is designed from the methods of Step impedance low pass prototype filter, basic property of microstrip filter like simulated design, return loss, amplitude frequency graph and smith chart discussed. Finally it is shown that-3dB return loss is shown at the frequency of 1.584GHz and this frequency come in the Lband so this filters showing a very sharp cutoff and used for different application of L-band (1-2GHz).
International Journal of Engineering & Technology, 2012
The purpose of this paper is to design a liquid yagi uda antenna at 1 GHz for L-band Application.... more The purpose of this paper is to design a liquid yagi uda antenna at 1 GHz for L-band Application. The designing formulas and structure were discussed. The antenna characteristics like return loss with different liquids are filled in the all the yagi elements were also discussed in this paper.
International Journal of Engineering & Technology, 2012
The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purp... more The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purpose in wireless communication. We have designed a circular microstrip patch antenna (CMPA) for 1.3GHz used in wireless communication. We have designed CMPA with 2slit slot, 3slit-slot, and 6slit-slot and observed results for different designs, and finally it is shown that as slit-slot increases to six slit-slot Return-loss and Bandwidth of CMPA are reduced.The multiband antenna use for wireless communication in different applications. Bandwidth improvement is about 63.3%, 72.10% and 37.5% respectively in two, three and six slit-slotted patch when compared to their basic design bandwidth band. Antenna is changed to multiband by slit-slot Circular Microstrip Patch Antenna (CMPA).
International Journal of Electronics and Electrical Engineering, 2013
In food adulteration, the presence of other substances is to be detected in liquid food and for t... more In food adulteration, the presence of other substances is to be detected in liquid food and for this purpose a monopole antenna is investigated in this paper. The related antenna design and variation in resonant frequency of monopole antenna in different liquid was also discussed in this paper.
International Journal of Electronics and Electrical Engineering, 2014
This paper presents on modified the dielectric properties of liquid with varying salinity, that w... more This paper presents on modified the dielectric properties of liquid with varying salinity, that was based on yagi-uda structure. Dielectric resonator antennas (DRAs) can be made with a wide range of materials and allow many excitation methods [1]. Pure water does not work at high frequency (> 1 GHz), but increases the salinity of water that modifies the dielectric properties of water. The resonator column height determined the operating frequency [2]. These antenna shows that the salinity increases the antenna was resonated at different frequency.
International Journal of Bio-Science and Bio-Technology, 2016
This paper presents the research work about the detection technique for brain tumour by microwave... more This paper presents the research work about the detection technique for brain tumour by microwave imaging. Slotted RMPA (Rectangular Micro-strip Patch Antenna) and Modified Ground Plane ultra wide band antenna has been proposed which is having the frequency range from 6GHz to 10GHz. In this work bandwidth achieved by the proposed antenna is approximate about the frequency of 4GHz that is large enough for early detection of brain tumor. Single layer brain phantom model is developed using CST-MWS which is an approximate model of the brain in which sphere is considered as a brain. The dielectric permittivity of the phantom brain model is 45.8 and its conductivity is .77s/m. Proposed antenna is placed in contact with the phantom brain having a cubical tumor of 5mm 3 with dielectric constant 54.2 and conductivity 2.62s/m. current density is increased approximate two times compare to the cases when brain having no tumor and SAR of the system is also considerably increased. The result shows the better improvement as compared to the previous results proposed by several researchers time to time.
International Journal of Electronics and Electrical Engineering, 2013
Cellular Mobile Communication is need of world. In this era life cannot imagine without cell phon... more Cellular Mobile Communication is need of world. In this era life cannot imagine without cell phone. In this paper it has been designed a two antenna for GSM communication at 1800MHz. First antenna is Rectangular Microstrip Patch Antenna(RMPA), and second one is Slit Slotted Rectangular Microstrip Patch Antenna(SSRMPA). Basic property of both the antenna like simulated design, Returnloss, Electric field Distribution, Radiation Pattern are discussed. Finally it is shown that Return Loss of Antenna in Slit-Slot Patch is decreased about 92.52%, and antenna Directivity is also increased a bit, and Total Efficiency of slit-slot RMPA is increased about 12.48% Slit-Slot Rectangular Microstrip Patch Antenna also Reduces the size of antenna which is always a basic need of cell phone antenna design system. Slit Slotted RMPA also improving the result by lowering the return loss at 92.52% almost all losses removed.
Materials Today: Proceedings, 2020
Abstract In this paper Rectangular Microstrip patch Antenna (RMPA) with symmetrical shaped DGS pa... more Abstract In this paper Rectangular Microstrip patch Antenna (RMPA) with symmetrical shaped DGS pattern is proposed for brain tumor detection by microwave imaging. Ultra wide band antenna is the requirement of the today’s world for various application as real time video conferencing, live streaming, remote sensing, Microwave imaging. Initially antenna is designed at one frequency of ISM band, and then symmetrical shaped DGS is applied to the antenna for making it ultra wide band. Antenna designed at 5.8 GHz by reference equations. It gives reflection loss S11 12.71dB at 5.7394GHz.Dielectric material used in the antenna is Rogers’s 4004 lossy.Antenna also gives the bandwidth of 89MHz, nowground plane of the antenna is cut by the symmetrical rectangular slot of dimension 22*30mm2.Opposite coroner of ground plane is also cut by rectangular slots 10*8mm2 and 5*3mm2 alternatively. Antenna with modified ground plane gives the minimum losses at 5.5GHz it is 29.81dB and also give maximum bandwidth 1.91GHz.Achieved Bandwidth is in ultra wide band range so designed antenna can be used for brain tumor detection in biomedical application