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Sayantan Dhar - IEEE Xplore Author Profile
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Sayantan Dhar

Also published under: S. Dhar

Publications
23
Citations
326
Publications by Year
20092023
Co-Authors:
Show All Co-Authors (31)
Image of author Sayantan Dhar

Sayantan Dhar

Also published under: S. Dhar

Affiliation

MS/ENX
Bosch Global Software Technologies
Bengaluru, India

Publication Topics

Biography

Sayantan Dhar (Member, IEEE) was born in Calcutta, in 1983. He received the B.E. degree in electronics and communication engineering from Visvesvaraya Technological University, Belgaum, India, in 2006, and the M.E.Tel.E. and Ph.D. degrees in electronics and telecommunication engineering from Jadavpur University, Kolkata, India, in 2010 and 2015, respectively.,In 2013, he joined Heritage Institute of Technology as an Assistant Professor. Since 2019, he has been associated with Bosch Global Software Technologies, Bengaluru, India, where he is currently working as a Technical Architect. He has authored or coauthored more than 20 technical papers. His recent research interests include system simulation, electromagnetic interference/EMC, machine...
Publications
23
Citations
326
Publications by Year
20092023
Co-Authors:
Show All Co-Authors (31)
Author's Published Works

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Sensitivity Based Reduction of Equivalent Electrical Circuits in Power Electronics Application

Bibhu Prasad Nayak;Sayantan Dhar;Andreas Klaedtke;Julian Buschbaum

2023 Joint Asia-Pacific International Symposium on Electromagnetic Compatibility and International Conference on ElectroMagnetic Interference & Compatibility (APEMC/INCEMIC)
Year: 2023 | Conference Paper |
This paper presents an application of an equivalent electric circuit reduction technique to improve the runtime of transient simulations. The approach is based on efficient adjoint sensitivity analyses of the initial electric circuit. Focus is in particular on electric circuits that contain a manageable number of functional elements, potentially of a non-linear type like semiconductor switches, an...Show More

Sensitivity Based Reduction of Equivalent Electrical Circuits in Power Electronics Application

Bibhu Prasad Nayak;Sayantan Dhar;Andreas Klaedtke;Julian Buschbaum

Year: 2023 | Conference Paper |

Analysis of Capacitor non-idealities on PDN performance

Poonam Shrukrishna Kshirsagar;Kaushik Patra;Sayantan Dhar;Bibhu Prasad Nayak

2023 Joint Asia-Pacific International Symposium on Electromagnetic Compatibility and International Conference on ElectroMagnetic Interference & Compatibility (APEMC/INCEMIC)
Year: 2023 | Conference Paper |
Accurate modelling of power distribution network (PDN) design in high-speed systems is a critical challenge. The equivalent electrical circuit of decoupling capacitor (decaps) becomes ambiguous due to temperature, bias voltage and aging dependency. This paper presents a workflow to model the decaps by considering of the temperature and bias voltage as the uncertainty parameters for predicting the ...Show More

Analysis of Capacitor non-idealities on PDN performance

Poonam Shrukrishna Kshirsagar;Kaushik Patra;Sayantan Dhar;Bibhu Prasad Nayak

Year: 2023 | Conference Paper |

Surrogate Modeling for Predicting Shielded Cable Emissions

Kaushik Patra;Sarath Cheruvalath;Sayantan Dhar;Bibhu Prasad Nayak;Aman Gupta;Jan Hansen

IEEE Transactions on Electromagnetic Compatibility
Year: 2023 | Volume: 65, Issue: 1 | Journal Article |
Cited by: Papers (1)
Shielded wires are widely used in electric and hybrid electric vehicles. Estimation of the radiated emissions from these cables require an appropriate description of the transfer impedance. The Kley Model describes this transfer impedance analytically as a function of geometrical parameters of the shield. The shield parameters are too intricate to be characterized and specified in datasheets, henc...Show More

Surrogate Modeling for Predicting Shielded Cable Emissions

Kaushik Patra;Sarath Cheruvalath;Sayantan Dhar;Bibhu Prasad Nayak;Aman Gupta;Jan Hansen

Year: 2023 | Volume: 65, Issue: 1 | Journal Article |

Prediction of Radiated Emission with Transmission Line Model for CISPR 25

Sayantan Dhar;Kaushik Patra;Shynu Nair;Lohith Kumar;Shibu Krishnan;Bibhu Prasad Nayak

2021 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)
Year: 2021 | Conference Paper |
Cited by: Papers (1)
Modern automotive ECUs are composed of multitude of microprocessors and other high speed circuits. High speed signals to/from the ECUs for data/control pass through long connecting cable harnesses and generate radiated disturbances on all onboard and off-board electronics. CISPR 25 is standard to control this emission level. However, enforcement of this standard at the post prototype measurement s...Show More

Prediction of Radiated Emission with Transmission Line Model for CISPR 25

Sayantan Dhar;Kaushik Patra;Shynu Nair;Lohith Kumar;Shibu Krishnan;Bibhu Prasad Nayak

Year: 2021 | Conference Paper |

Microwave Filter Design by Geometrical Tuning of Periodic Microstrip Line Structures

Kasturi Mukherjee;Sayantan Dhar;Kaushik Patra;Bhaskar Gupta

2019 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)
Year: 2019 | Conference Paper |
Microstrip line periodically loaded with slits is designed to behave as a filter (either low-pass or band-stop) in the frequency range of 1 - 8 GHz. The filtering characteristic is found to be determined by the geometric dimensions of the slits. Equivalent circuit model describing such periodic microstrip filter as Bridged T-network comprising of series inductance and shunt capacitance is proposed...Show More

Microwave Filter Design by Geometrical Tuning of Periodic Microstrip Line Structures

Kasturi Mukherjee;Sayantan Dhar;Kaushik Patra;Bhaskar Gupta

Year: 2019 | Conference Paper |

Analysis of Arbitrarily Curved Microstrip Lines for Radiated Emission

Kaushik Patra;Sayantan Dhar;Bhaskar Gupta

IEEE Transactions on Electromagnetic Compatibility
Year: 2018 | Volume: 60, Issue: 3 | Journal Article |
Cited by: Papers (3)
In the context of printed circuit design, microstrip interconnects pose a great challenge in terms of radiated emission, signal integrity, and intertrace interference. Curved and bent microstrip lines are integral part of such high-frequency circuit design. In this paper, internal fields of an arbitrarily curved microstrip line are calculated using a sequential mode matching technique with piecewi...Show More

Analysis of Arbitrarily Curved Microstrip Lines for Radiated Emission

Kaushik Patra;Sayantan Dhar;Bhaskar Gupta

Year: 2018 | Volume: 60, Issue: 3 | Journal Article |

Radiation from simple and perturbed arbitrarily curved microstrip lines

Kaushik Patra;Sayantan Dhar;Bhaskar Gupta

2016 Asia-Pacific Microwave Conference (APMC)
Year: 2016 | Conference Paper |
Cited by: Papers (4)
An arbitrarily curved microstrip line supporting travelling wave type current distribution is analyzed for its radiated far-fields. The curved microstrip line is segmented into multiple linear segments and radiated fields from each of them are calculated through a rectilinear transformation. Finally all such contributions are added up to obtain the total radiated fields. A sinusoidal curve based l...Show More

Radiation from simple and perturbed arbitrarily curved microstrip lines

Kaushik Patra;Sayantan Dhar;Bhaskar Gupta

Year: 2016 | Conference Paper |

A Dielectric Resonator-Loaded Minkowski Fractal-Shaped Slot Loop Heptaband Antenna

Sayantan Dhar;Kaushik Patra;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

IEEE Transactions on Antennas and Propagation
Year: 2015 | Volume: 63, Issue: 4 | Journal Article |
Cited by: Papers (66)
A multiband fractal co-planar waveguide (CPW)-fed slot antenna loaded with a dielectric resonator conforming to multiple wireless standards is presented in this paper. The Minkowski fractal geometry is utilized to generate multiple frequency bands as well as to provide a miniaturized design compared to its Euclidean counterpart. The idea behind placing the dielectric load is to serve a dual purpos...Show More

A Dielectric Resonator-Loaded Minkowski Fractal-Shaped Slot Loop Heptaband Antenna

Sayantan Dhar;Kaushik Patra;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

Year: 2015 | Volume: 63, Issue: 4 | Journal Article |

A reconfigurable dielectric resonator antenna for polarization diversity applications

Sayantan Dhar;S. Sankaralingam;Bhaskar Gupta;Dipak Ranjan Poddar;Rowdra Ghatak

Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)
Year: 2014 | Conference Paper |
Cited by: Papers (4)
A circularly polarized rectangular dielectric resonator antenna is presented. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. Four pin diodes are placed across the slots to switch between two polarization states namely, Right Hand Circular Polarization (RHCP) and Left Hand Circular Po...Show More

A reconfigurable dielectric resonator antenna for polarization diversity applications

Sayantan Dhar;S. Sankaralingam;Bhaskar Gupta;Dipak Ranjan Poddar;Rowdra Ghatak

Year: 2014 | Conference Paper |

Miniaturization of wearable electro-textile antennas using Minkowski fractal geometry

Sankaralinagm Subramaniam;Sayantan Dhar;Kaushik Patra;Bhaskar Gupta;Lotfi Osman;Kais Zeouga;Ali Gharsallah

2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
Year: 2014 | Conference Paper |
Cited by: Papers (13)
This paper deals with miniaturization of wearable electro-textile antennas by the use of Minkowski fractal geometries. Two electro-textile materials namely Flectron and Zelt are considered for the design of flexible microstrip antennas. In both cases, polyester fabric material has been employed as dielectric medium. In the basic design both the antennas are designed for WLAN applications. The Flec...Show More

Miniaturization of wearable electro-textile antennas using Minkowski fractal geometry

Sankaralinagm Subramaniam;Sayantan Dhar;Kaushik Patra;Bhaskar Gupta;Lotfi Osman;Kais Zeouga;Ali Gharsallah

Year: 2014 | Conference Paper |

Hepta-band DRA loaded Minkowski Fractal Slot Antenna

S. Dhar;K. Patra;S. Sankaralingam;B. Gupta;D. R. Poddar;R. Ghatak

2013 13th Mediterranean Microwave Symposium (MMS)
Year: 2013 | Conference Paper |
A hepta-band dielectric loaded Minkowski Fractal Slot Antenna is presented in this article. Fractal geometry is utilized to generate multiple frequency bands conforming to various wireless standards. The idea behind placement of the dielectric resonator is to increase the impedance bandwidth at the upper frequency band. The proposed antenna exhibits a hepta-band performance over the frequency rang...Show More

Hepta-band DRA loaded Minkowski Fractal Slot Antenna

S. Dhar;K. Patra;S. Sankaralingam;B. Gupta;D. R. Poddar;R. Ghatak

Year: 2013 | Conference Paper |

Performance of fully fabric wearable circular patch antennas in the vicinity of human body at 2.45 GHz

S. Sankaralingam;Sayantan Dhar;Sanghamitra Dasgupta;Bhaskar Gupta

2013 International Symposium on Electromagnetic Theory
Year: 2013 | Conference Paper |
Cited by: Papers (3)
Impedance and radiation characteristics of 2.45 GHz wearable antennas in close proximity to human body are discussed in this paper. Two circular microstrip antennas namely Flectron antenna and Zelt antenna are considered in this research work. Each of these two antennas is assumed to be placed in the vicinity of human torso with an air gap of 1 mm between torso and antenna. In this study, the huma...Show More

Performance of fully fabric wearable circular patch antennas in the vicinity of human body at 2.45 GHz

S. Sankaralingam;Sayantan Dhar;Sanghamitra Dasgupta;Bhaskar Gupta

Year: 2013 | Conference Paper |

Circularly polarized Minkowski fractal dielectric resonator antenna

Sayantan Dhar;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

2013 International Symposium on Electromagnetic Theory
Year: 2013 | Conference Paper |
A circularly polarized rectangular Minkowski Island shaped fractal dielectric resonator antenna is presented. Fractal geometry is utilized to enhance the impedance bandwidth of the proposed antenna by merging higher order modes. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. The ante...Show More

Circularly polarized Minkowski fractal dielectric resonator antenna

Sayantan Dhar;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

Year: 2013 | Conference Paper |

A Wideband Minkowski Fractal Dielectric Resonator Antenna

Sayantan Dhar;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

IEEE Transactions on Antennas and Propagation
Year: 2013 | Volume: 61, Issue: 6 | Journal Article |
Cited by: Papers (116)
A CPW slot loop fed Minkowski shaped fractal dielectric resonator antenna is proposed. Self similar property of fractal geometry is utilized to bring higher order modes close together to realize a wide impedance bandwidth. A comparative study of the resonant frequency behavior between the well established fractal electrical boundary antennas and fractal magnetic boundary antennas is presented to p...Show More

A Wideband Minkowski Fractal Dielectric Resonator Antenna

Sayantan Dhar;Rowdra Ghatak;Bhaskar Gupta;Dipak Ranjan Poddar

Year: 2013 | Volume: 61, Issue: 6 | Journal Article |

Preliminary studies on performance of a 2.45 GHz wearable antenna in the vicinity of human body

S. Sankaralingam;Sayantan Dhar;Bhaskar Gupta

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)
Year: 2012 | Conference Paper |
Cited by: Papers (4)
Impedance and radiation characteristics of 2.45 GHz wearable antennas in close proximity to a human body are studied in this paper. Three rectangular microstrip antennas namely wash cotton antenna, polyester antenna and polyester combined cotton antenna are considered in this preliminary study. Each of these three antennas is assumed to be placed in the vicinity of human torso with an air gap of 1...Show More

Preliminary studies on performance of a 2.45 GHz wearable antenna in the vicinity of human body

S. Sankaralingam;Sayantan Dhar;Bhaskar Gupta

Year: 2012 | Conference Paper |

A CPW fed slot loop Minkowski fractal antenna with enhanced channel selectivity

Sayantan Dhar;Sudipta Maity;Bhaskar Gupta;D.R. Poddar;Rowdra Ghatak

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)
Year: 2012 | Conference Paper |
Cited by: Papers (3)
A Minkowski fractal shaped CPW fed slot antenna is proposed in this article. The primary objective of this paper is to obtain multiband characteristics with narrow bandwidth. The proposed antenna radiates with an omnidirectional pattern and may be utilized for wireless applications.Show More

A CPW fed slot loop Minkowski fractal antenna with enhanced channel selectivity

Sayantan Dhar;Sudipta Maity;Bhaskar Gupta;D.R. Poddar;Rowdra Ghatak

Year: 2012 | Conference Paper |

Impedance characteristics of body-worn electro-textile antenna under flat and bent positions

S. Sankaralingam;Sayantan Dhar;Rajendra Prasad Ghosh;Samik Chakraborty;Bhaskar Gupta

2011 IEEE Applied Electromagnetics Conference (AEMC)
Year: 2011 | Conference Paper |
Cited by: Papers (3)
The evolution of antenna technology for man-machine interface has taken quantum leaps in utilizing textile materials as antenna substrates. In future this will allow complete freedom to develop body-worn antenna systems embedded in so-called “smart clothes”. Smart clothes (also called `electro-textiles”) will emerge in various sports outfits, emergency workers' outfits, military, medical, space ap...Show More

Impedance characteristics of body-worn electro-textile antenna under flat and bent positions

S. Sankaralingam;Sayantan Dhar;Rajendra Prasad Ghosh;Samik Chakraborty;Bhaskar Gupta

Year: 2011 | Conference Paper |

Novel compact CPW filter for MICs using metamaterial structures

Sonali Das;Avra Kundu;Santanu Maity;Sayantan Dhar;Bhaskar Gupta

2011 11th Mediterranean Microwave Symposium (MMS)
Year: 2011 | Conference Paper |
Cited by: Papers (5)
A band pass filter for Q-band MIC application is presented using two sets of resonator of different dimensions on Silicon substrate. The two resonators are implemented with the help of metamaterial structures and compactness is achieved by placing the resonators on both signal and ground planes of a Co Planar Waveguide (CPW). The resonators are realized using Complementary Split Ring Resonators (C...Show More

Novel compact CPW filter for MICs using metamaterial structures

Sonali Das;Avra Kundu;Santanu Maity;Sayantan Dhar;Bhaskar Gupta

Year: 2011 | Conference Paper |

Lumped circuit model analysis of meander line antennas

Arkaprovo Das;Sayantan Dhar;Bhaskar Gupta

2011 11th Mediterranean Microwave Symposium (MMS)
Year: 2011 | Conference Paper |
Cited by: Papers (25)
The past decade has seen phenomenal advances in portable electronics technology like mobile phones, RFID tags and MP3 players. This has led to the development of System in Package (SiP) which combines all the necessary components into a single package. Miniaturization of RF circuit technology has resulted in the need for miniaturized antennas. Meander line antennas are widely used in applications ...Show More

Lumped circuit model analysis of meander line antennas

Arkaprovo Das;Sayantan Dhar;Bhaskar Gupta

Year: 2011 | Conference Paper |

Compact K-band distributed RF MEMS phase shifter based on high-speed switched capacitors

Amrita Chakraborty;Avra Kundu;Sayantan Dhar;Santanu Maity;Sayan Chatterjee;Bhaskar Gupta

2011 11th Mediterranean Microwave Symposium (MMS)
Year: 2011 | Conference Paper |
Cited by: Papers (8)
A high-speed switched capacitor based distributed MEMS phase shifter has been presented. Miniaturization of the conventional MEMS capacitor dimensions has been done to achieve sub-microsecond switching, lower actuation voltage and a compact structure. Conventional design approach of such high-speed MEMS capacitor based phase shifter employs cascading the capacitors on a linear coplanar transmissio...Show More

Compact K-band distributed RF MEMS phase shifter based on high-speed switched capacitors

Amrita Chakraborty;Avra Kundu;Sayantan Dhar;Santanu Maity;Sayan Chatterjee;Bhaskar Gupta

Year: 2011 | Conference Paper |

Annular ring microstrip antenna for body-worn applications

S. Sankaralingam;Sayantan Dhar;Samik Chakraborty;Bhaskar Gupta

2010 Annual IEEE India Conference (INDICON)
Year: 2010 | Conference Paper |
The concept of being connected anywhere and everywhere is the main driving force for developing and researching the potential Wireless Body Area Networks operated in WLAN and HiperLAN bands. This paper presents design, development and evaluation of a fully fabric annular ring microstrip antenna suitable for wearable applications in WLAN band. Both simulated and experimental results on the performa...Show More

Annular ring microstrip antenna for body-worn applications

S. Sankaralingam;Sayantan Dhar;Samik Chakraborty;Bhaskar Gupta

Year: 2010 | Conference Paper |

Development of wearable and implantable antennas in the last decade: A review

B. Gupta;S. Sankaralingam;S. Dhar

2010 10th Mediterranean Microwave Symposium
Year: 2010 | Conference Paper |
Cited by: Papers (67)
Utilization of wearable textile materials as antenna substrate has been rapid due to the recent miniaturization of wireless devices. A wearable antenna is meant to be a part of the clothing used for communication purposes, which includes tracking and navigation, mobile computing and public safety. This article portrays research on wearable and body mounted antennas designed and developed for vario...Show More

Development of wearable and implantable antennas in the last decade: A review

B. Gupta;S. Sankaralingam;S. Dhar

Year: 2010 | Conference Paper |

Preliminary investigations on HyperLAN antenna for wearable applications

S. Sankaralingam;Bhaskar Gupta;Samik Chakraborty;Sayantan Dhar;Ayona Sarkar

2009 Applied Electromagnetics Conference (AEMC)
Year: 2009 | Conference Paper |
Modern life-style of human-being necessitates the use of Wireless Personal Area Networks (WPANs) consisting of ad-hoc communications between portable computing devices such as laptops, PDAs, pagers and cellular telephones. The newly emerged wireless technologies, including IEEE 802.11, promise to outfit conventional portable and embedded devices with high bandwidth as well as localized wireless co...Show More

Preliminary investigations on HyperLAN antenna for wearable applications

S. Sankaralingam;Bhaskar Gupta;Samik Chakraborty;Sayantan Dhar;Ayona Sarkar

Year: 2009 | Conference Paper |

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