Nisha Gupta - Academia.edu (original) (raw)

Papers by Nisha Gupta

Applied Computational Electromagnetics Society Journal

ijmot.com

Abstract-The paper presents the design of a printed monopole antenna for landmine detection. The ... more Abstract-The paper presents the design of a printed monopole antenna for landmine detection. The characteristics of antenna are obtained for inset fed H-shape monopole configuration for several cases. The proposed antenna exhibits a bandwidth of 49MHz ...

Microwave Review, 2009

Abstract–This paper compares the performance of two microstrip filters designed and fabricated on... more Abstract–This paper compares the performance of two microstrip filters designed and fabricated on an EBG ground plane. The proposed filter designs show sharp rejection and wide stop band. The design is based on the calculation of parameters from traditional high ...

Applied Computational Electromagnetics Society Journal, 2015

In this work, a Sinc shaped printed monopole antenna is proposed for wireless devices. The radiat... more In this work, a Sinc shaped printed monopole antenna is proposed for wireless devices. The radiating element is a strip monopole configuration folded in the shape of a Sinc function where the radiating element is an extension of 50 Ω microstrip line. The proposed antenna not only represents a compact configuration but is easier to design and feed. Several configurations of truncated Sinc(2x) monopole geometry are taken into consideration to show the resonance behavior at single, two or more than two frequencies for multifrequency operation. The detailed parametric study has been carried out in terms of several truncated Sinc configurations, ground plane size, feed gap and Sinc strip length to achieve the desired band of operation. The design formula is also presented for the proposed monopole antenna. Finally, a prototype model is developed and the simulated results are validated experimentally for a particular configuration. It is seen that the proposed antenna occupies small area, depicts good radiation characteristics and is suitable for wireless devices operating at DCS/PCS/IMT-2000/UMTS frequencies.

Wireless Personal Communications, 2021

In this paper an improved adaptive energy efficient MAC (EEAWuR-MAC) protocol is proposed to hand... more In this paper an improved adaptive energy efficient MAC (EEAWuR-MAC) protocol is proposed to handle emergency data transmission in internet of things wireless body area networks (WBANs) by incorporating the wake-up radio (WuR) mechanism. In WuR based WBANs a body node starts data transmission in an on-demand manner by sending a WuR-message (WuM). The WuR based MAC (WuR-MAC) protocols reduces the latency of data transmission and saves more energy in contrast to duty-cycling MAC protocols. Therefore, the superiority of WuR mechanism over duty-cycling shifts the trend towards WuR-MAC protocols. Furthermore, the investigation of emergency data (ED) handling mechanisms is still required at MAC layer. It is observed that inappropriately configuring the 802.15.4 MAC parameters may lead to performance deterioration in terms of energy efficiency and quality of service (QoS) such as throughput and delay. Therefore, a substantial modification in the existing IEEE 802.15.4 super-frame structure is essentially required for efficiently handling the ED transmission. The proposed protocol employs a modified superframe structure of IEEE 802.15.4 MAC, mainly designed for ultra-low power medical applications under normal and emergency traffic conditions concurrently without any interruption. A systematic analytical framework is developed to derive the mathematical expressions based on M/G/1/2 queuing model to evaluate the performance of proposed protocol in terms of throughput, delay and energy consumption and its validation is carried out using MATLAB simulation.

Serbian Journal of Electrical Engineering, 2021

In this paper cluster-based hybrid MAC (CB-HMAC) protocol, based on IEEE 802.15.4 MAC is proposed... more In this paper cluster-based hybrid MAC (CB-HMAC) protocol, based on IEEE 802.15.4 MAC is proposed for smart home networks. The CB-HMAC is specially designed for short packet transmission in a dense home network environment. Simulation results show that the proposed CB-HMAC is more energy-efficient than other medium access control (MAC) protocols without sacrificing much delay and throughput.

Progress In Electromagnetics Research M, 2013

Progress In Electromagnetics Research C, 2011

A compact symmetrical band-pass filter design using coupled microstrip line is presented in this ... more A compact symmetrical band-pass filter design using coupled microstrip line is presented in this paper. The microstrip line sections connected to the two input and output ports of the filter structure are printed over the Defected Ground Structure (DGS). The proposed symmetrical structure offers a simple and compact design and exhibits improved stop-band characteristics in comparison to the conventional coupled microstrip line filter structure. The prototype model of the proposed filter structure is developed and tested. The measured results are found to be in good agreement with the simulation results.

A novel inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The propo... more A novel inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The proposed confi-guration realizes the monopole antenna in compact form and also depicts good radiation characteristics at operating bands. A detailed parametric study has been carried out for different sizes of the ground plane, Sinc strip length, Sinc height, feed gap, etc. Finally, prototype models are developed for the most effective configurations and the simulated results are validated experimentally. It is shown that the proposed antenna occupies a small area and is suitable for operation at DCS/PCS/IMT-2000/WLAN and satellite communication frequencies.

2014 Fourth International Conference on Communication Systems and Network Technologies, 2014

ABSTRACT A novel wideband inverted Sinc shaped printed monopole antenna is proposed for wireless ... more ABSTRACT A novel wideband inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The proposed configuration not only realizes the monopole antenna in compact form but also depicts good radiation characteristics at the operating band (2855-5081 MHz). The proposed monopole antenna provides a wide frequency band of about 56% for wireless operation. A detailed parametric study has been carried out for different size of the ground plane and feed gap. Finally a prototype model is developed for the most effective configuration and the simulated results are validated experimentally. It is seen that the proposed antenna occupies small area and is suitable for operation at radio navigation, space research, amateur radio, aviation, public safety mobile, fixed mobile and fixed satellite communication frequencies.

Progress In Electromagnetics Research Letters, 2011

This paper proposes a miniaturization method for conventional Wilkinson Power Divider(WPD) by rep... more This paper proposes a miniaturization method for conventional Wilkinson Power Divider(WPD) by replacing the quarter wave sections with the help of fractals. The performance degradation is compensated by using Defected Ground Structure (DGS). The resultant device occupies 56% of the area in comparison to the conventional WPD. The simulation results show a reflection coefficient of −66.98 dB and isolation of 24.1021 dB at the centre frequency of 1.8 GHz. Finally a prototype model is developed on a low cost FR4 Glass Epoxy substrate and tested. The experimental results show a good agreement with the simulation results.

Microwave and Optical Technology Letters, 2013

ABSTRACT In the presented work, a simple printed compact dual Sinc-shaped monopole antenna suitab... more ABSTRACT In the presented work, a simple printed compact dual Sinc-shaped monopole antenna suitable for dual-band operation is proposed for portable wireless devices. The proposed antenna consists of dual Sinc configuration: one a Sinc-shaped radiating strip and another Sinc-shaped sleeve in the ground plane. The antenna operates at dual frequency bands, 2245–2635 MHz, and 4589–5112 MHz, showing 10 dB fractional impedance bandwidths of 16 and 10.8%, respectively. A simple approximate formula for the first two resonant frequencies is also presented. Finally, A prototype model is developed for the proposed configuration and the simulated results are validated experimentally. The antenna is found to be suitable for long term evolution handheld devices, WiMAX, WLAN, and public safety land mobile. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2883–2888, 2013

RF filters for wireless applications must achieve stringent EMI specification while meeting tight... more RF filters for wireless applications must achieve stringent EMI specification while meeting tight cost constraints. This paper proposes the design of microstrip based RF filter printed on low cost FR4 material with EBG ground plane structure. The full wave Method of Moments based IE3D simulator is used for the design. The characteristics of the filter are determined in terms of

International Journal of Microwave Science and Technology, 2014

This paper presents a new concept to realize a multifrequency Oscillator-type active printed mono... more This paper presents a new concept to realize a multifrequency Oscillator-type active printed monopole antenna. The concept of period doubling route to chaos is exploited to generate the multiple frequencies. The chaotic Colpitts oscillator is integrated with the printed monopole antenna (PMA) on the same side of the substrate to realize an Oscillator-type active antenna where the PMA acts as a load and radiator to the chaotic oscillator. By changing the bias voltage of the oscillator, the antenna can be made to operate at single or multiple frequencies. To test the characteristics of the antenna at single and multiple frequencies of operation, two similar prototype models of printed monopole broadband antennas are developed. One of these antennas used at transmit side is fed by the chaotic Colpitts oscillator while the other is used as the receive antenna. It is observed that the antenna receives single or multiple frequencies simultaneously for particular values of the bias voltage...

Progress In Electromagnetics Research Letters, 2009

International Journal of Computer Mathematics - IJCM, 2004

Vehicle routing problems (VRPs) are resource management problems where the aim is to use the limi... more Vehicle routing problems (VRPs) are resource management problems where the aim is to use the limited number of resources to a large number of jobs so that a maximum number of jobs can be completed with minimum cost. These problems are made complicated by the inclusion of temporal and technological constraints. These problems belong to the class of nondeterministic polynominal-time complete (NP) problems. This paper describes the application of stochastic techniques, namely simulated annealing (SA) and genetic algorithm (GA), to solve VRPs. It is found empirically that SA gives better results than GA for all randomly generated under-, critically- and over-resourced VRPs in almost all cases.

International Journal of Electronics, 1996

A simple technique for formulating the dyadic Green functions in the space-spectral domain is pre... more A simple technique for formulating the dyadic Green functions in the space-spectral domain is presented, using a novel combination of two methods, namely the spectral domain approach and the method of lines. As an example, the resonant characteristics and end ...

IEEE Transactions on Microwave Theory and Techniques, 2000

In this paper, the method of lines and finite-difference timedomain numerical methods are used to... more In this paper, the method of lines and finite-difference timedomain numerical methods are used to investigate the field distribution, dispersion, and impedance characteristics of the grooved microstrip line (GMSL) structure. It is found that the GMSL is less dispersive compared to conventional microstrip lines, and also provides a wide range of characteristic impedance values as a function of the groove width. Increasing the groove width of the microstrip structure can also reduce the dielectric and conductor losses of the GMSL.

A project for Euro-Asian Network for …, 2005

GAIN AND BANDWIDTH ENHANCEMENT IN COMPACT MICROSTRIP ANTENNA Vibha Rani Gupta(1) and Nisha Gupta(... more GAIN AND BANDWIDTH ENHANCEMENT IN COMPACT MICROSTRIP ANTENNA Vibha Rani Gupta(1) and Nisha Gupta(2) (1)Birla Institute of ... 5. V. Gupta, S. Sinha, SK Koul and B. Bhat, “Wideband dielectric resonator-loaded suspended microstrip patch antennas,” Microwave ...

Applied Computational Electromagnetics Society Journal

ijmot.com

Abstract-The paper presents the design of a printed monopole antenna for landmine detection. The ... more Abstract-The paper presents the design of a printed monopole antenna for landmine detection. The characteristics of antenna are obtained for inset fed H-shape monopole configuration for several cases. The proposed antenna exhibits a bandwidth of 49MHz ...

Microwave Review, 2009

Abstract–This paper compares the performance of two microstrip filters designed and fabricated on... more Abstract–This paper compares the performance of two microstrip filters designed and fabricated on an EBG ground plane. The proposed filter designs show sharp rejection and wide stop band. The design is based on the calculation of parameters from traditional high ...

Applied Computational Electromagnetics Society Journal, 2015

In this work, a Sinc shaped printed monopole antenna is proposed for wireless devices. The radiat... more In this work, a Sinc shaped printed monopole antenna is proposed for wireless devices. The radiating element is a strip monopole configuration folded in the shape of a Sinc function where the radiating element is an extension of 50 Ω microstrip line. The proposed antenna not only represents a compact configuration but is easier to design and feed. Several configurations of truncated Sinc(2x) monopole geometry are taken into consideration to show the resonance behavior at single, two or more than two frequencies for multifrequency operation. The detailed parametric study has been carried out in terms of several truncated Sinc configurations, ground plane size, feed gap and Sinc strip length to achieve the desired band of operation. The design formula is also presented for the proposed monopole antenna. Finally, a prototype model is developed and the simulated results are validated experimentally for a particular configuration. It is seen that the proposed antenna occupies small area, depicts good radiation characteristics and is suitable for wireless devices operating at DCS/PCS/IMT-2000/UMTS frequencies.

Wireless Personal Communications, 2021

In this paper an improved adaptive energy efficient MAC (EEAWuR-MAC) protocol is proposed to hand... more In this paper an improved adaptive energy efficient MAC (EEAWuR-MAC) protocol is proposed to handle emergency data transmission in internet of things wireless body area networks (WBANs) by incorporating the wake-up radio (WuR) mechanism. In WuR based WBANs a body node starts data transmission in an on-demand manner by sending a WuR-message (WuM). The WuR based MAC (WuR-MAC) protocols reduces the latency of data transmission and saves more energy in contrast to duty-cycling MAC protocols. Therefore, the superiority of WuR mechanism over duty-cycling shifts the trend towards WuR-MAC protocols. Furthermore, the investigation of emergency data (ED) handling mechanisms is still required at MAC layer. It is observed that inappropriately configuring the 802.15.4 MAC parameters may lead to performance deterioration in terms of energy efficiency and quality of service (QoS) such as throughput and delay. Therefore, a substantial modification in the existing IEEE 802.15.4 super-frame structure is essentially required for efficiently handling the ED transmission. The proposed protocol employs a modified superframe structure of IEEE 802.15.4 MAC, mainly designed for ultra-low power medical applications under normal and emergency traffic conditions concurrently without any interruption. A systematic analytical framework is developed to derive the mathematical expressions based on M/G/1/2 queuing model to evaluate the performance of proposed protocol in terms of throughput, delay and energy consumption and its validation is carried out using MATLAB simulation.

Serbian Journal of Electrical Engineering, 2021

In this paper cluster-based hybrid MAC (CB-HMAC) protocol, based on IEEE 802.15.4 MAC is proposed... more In this paper cluster-based hybrid MAC (CB-HMAC) protocol, based on IEEE 802.15.4 MAC is proposed for smart home networks. The CB-HMAC is specially designed for short packet transmission in a dense home network environment. Simulation results show that the proposed CB-HMAC is more energy-efficient than other medium access control (MAC) protocols without sacrificing much delay and throughput.

Progress In Electromagnetics Research M, 2013

Progress In Electromagnetics Research C, 2011

A compact symmetrical band-pass filter design using coupled microstrip line is presented in this ... more A compact symmetrical band-pass filter design using coupled microstrip line is presented in this paper. The microstrip line sections connected to the two input and output ports of the filter structure are printed over the Defected Ground Structure (DGS). The proposed symmetrical structure offers a simple and compact design and exhibits improved stop-band characteristics in comparison to the conventional coupled microstrip line filter structure. The prototype model of the proposed filter structure is developed and tested. The measured results are found to be in good agreement with the simulation results.

A novel inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The propo... more A novel inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The proposed confi-guration realizes the monopole antenna in compact form and also depicts good radiation characteristics at operating bands. A detailed parametric study has been carried out for different sizes of the ground plane, Sinc strip length, Sinc height, feed gap, etc. Finally, prototype models are developed for the most effective configurations and the simulated results are validated experimentally. It is shown that the proposed antenna occupies a small area and is suitable for operation at DCS/PCS/IMT-2000/WLAN and satellite communication frequencies.

2014 Fourth International Conference on Communication Systems and Network Technologies, 2014

ABSTRACT A novel wideband inverted Sinc shaped printed monopole antenna is proposed for wireless ... more ABSTRACT A novel wideband inverted Sinc shaped printed monopole antenna is proposed for wireless devices. The proposed configuration not only realizes the monopole antenna in compact form but also depicts good radiation characteristics at the operating band (2855-5081 MHz). The proposed monopole antenna provides a wide frequency band of about 56% for wireless operation. A detailed parametric study has been carried out for different size of the ground plane and feed gap. Finally a prototype model is developed for the most effective configuration and the simulated results are validated experimentally. It is seen that the proposed antenna occupies small area and is suitable for operation at radio navigation, space research, amateur radio, aviation, public safety mobile, fixed mobile and fixed satellite communication frequencies.

Progress In Electromagnetics Research Letters, 2011

This paper proposes a miniaturization method for conventional Wilkinson Power Divider(WPD) by rep... more This paper proposes a miniaturization method for conventional Wilkinson Power Divider(WPD) by replacing the quarter wave sections with the help of fractals. The performance degradation is compensated by using Defected Ground Structure (DGS). The resultant device occupies 56% of the area in comparison to the conventional WPD. The simulation results show a reflection coefficient of −66.98 dB and isolation of 24.1021 dB at the centre frequency of 1.8 GHz. Finally a prototype model is developed on a low cost FR4 Glass Epoxy substrate and tested. The experimental results show a good agreement with the simulation results.

Microwave and Optical Technology Letters, 2013

ABSTRACT In the presented work, a simple printed compact dual Sinc-shaped monopole antenna suitab... more ABSTRACT In the presented work, a simple printed compact dual Sinc-shaped monopole antenna suitable for dual-band operation is proposed for portable wireless devices. The proposed antenna consists of dual Sinc configuration: one a Sinc-shaped radiating strip and another Sinc-shaped sleeve in the ground plane. The antenna operates at dual frequency bands, 2245–2635 MHz, and 4589–5112 MHz, showing 10 dB fractional impedance bandwidths of 16 and 10.8%, respectively. A simple approximate formula for the first two resonant frequencies is also presented. Finally, A prototype model is developed for the proposed configuration and the simulated results are validated experimentally. The antenna is found to be suitable for long term evolution handheld devices, WiMAX, WLAN, and public safety land mobile. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2883–2888, 2013

RF filters for wireless applications must achieve stringent EMI specification while meeting tight... more RF filters for wireless applications must achieve stringent EMI specification while meeting tight cost constraints. This paper proposes the design of microstrip based RF filter printed on low cost FR4 material with EBG ground plane structure. The full wave Method of Moments based IE3D simulator is used for the design. The characteristics of the filter are determined in terms of

International Journal of Microwave Science and Technology, 2014

This paper presents a new concept to realize a multifrequency Oscillator-type active printed mono... more This paper presents a new concept to realize a multifrequency Oscillator-type active printed monopole antenna. The concept of period doubling route to chaos is exploited to generate the multiple frequencies. The chaotic Colpitts oscillator is integrated with the printed monopole antenna (PMA) on the same side of the substrate to realize an Oscillator-type active antenna where the PMA acts as a load and radiator to the chaotic oscillator. By changing the bias voltage of the oscillator, the antenna can be made to operate at single or multiple frequencies. To test the characteristics of the antenna at single and multiple frequencies of operation, two similar prototype models of printed monopole broadband antennas are developed. One of these antennas used at transmit side is fed by the chaotic Colpitts oscillator while the other is used as the receive antenna. It is observed that the antenna receives single or multiple frequencies simultaneously for particular values of the bias voltage...

Progress In Electromagnetics Research Letters, 2009

International Journal of Computer Mathematics - IJCM, 2004

Vehicle routing problems (VRPs) are resource management problems where the aim is to use the limi... more Vehicle routing problems (VRPs) are resource management problems where the aim is to use the limited number of resources to a large number of jobs so that a maximum number of jobs can be completed with minimum cost. These problems are made complicated by the inclusion of temporal and technological constraints. These problems belong to the class of nondeterministic polynominal-time complete (NP) problems. This paper describes the application of stochastic techniques, namely simulated annealing (SA) and genetic algorithm (GA), to solve VRPs. It is found empirically that SA gives better results than GA for all randomly generated under-, critically- and over-resourced VRPs in almost all cases.

International Journal of Electronics, 1996

A simple technique for formulating the dyadic Green functions in the space-spectral domain is pre... more A simple technique for formulating the dyadic Green functions in the space-spectral domain is presented, using a novel combination of two methods, namely the spectral domain approach and the method of lines. As an example, the resonant characteristics and end ...

IEEE Transactions on Microwave Theory and Techniques, 2000

In this paper, the method of lines and finite-difference timedomain numerical methods are used to... more In this paper, the method of lines and finite-difference timedomain numerical methods are used to investigate the field distribution, dispersion, and impedance characteristics of the grooved microstrip line (GMSL) structure. It is found that the GMSL is less dispersive compared to conventional microstrip lines, and also provides a wide range of characteristic impedance values as a function of the groove width. Increasing the groove width of the microstrip structure can also reduce the dielectric and conductor losses of the GMSL.

A project for Euro-Asian Network for …, 2005

GAIN AND BANDWIDTH ENHANCEMENT IN COMPACT MICROSTRIP ANTENNA Vibha Rani Gupta(1) and Nisha Gupta(... more GAIN AND BANDWIDTH ENHANCEMENT IN COMPACT MICROSTRIP ANTENNA Vibha Rani Gupta(1) and Nisha Gupta(2) (1)Birla Institute of ... 5. V. Gupta, S. Sinha, SK Koul and B. Bhat, “Wideband dielectric resonator-loaded suspended microstrip patch antennas,” Microwave ...