Rahul Gupta

ORCID: 0000-0003-4391-5764
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About
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Research Areas
  • Microwave Engineering and Waveguides
  • Radio Frequency Integrated Circuit Design
  • Electromagnetic Compatibility and Noise Suppression
  • Advanced Antenna and Metasurface Technologies
  • Antenna Design and Analysis
  • Energy Harvesting in Wireless Networks
  • Wireless Power Transfer Systems
  • RNA modifications and cancer
  • Full-Duplex Wireless Communications
  • Microwave and Dielectric Measurement Techniques
  • Advanced Power Amplifier Design
  • Indoor and Outdoor Localization Technologies
  • Climate Change and Health Impacts
  • Advanced Vision and Imaging
  • Fractional Differential Equations Solutions
  • Advanced Control Systems Design
  • Analog and Mixed-Signal Circuit Design
  • Computational Drug Discovery Methods
  • Robotics and Sensor-Based Localization
  • Robotic Path Planning Algorithms
  • Millimeter-Wave Propagation and Modeling
  • Cancer-related molecular mechanisms research
  • Wireless Body Area Networks
  • Metabolomics and Mass Spectrometry Studies
  • Water-Energy-Food Nexus Studies

Indraprastha Institute of Information Technology Delhi
2016-2024

National Research University Higher School of Economics
2024

Indian Institute of Technology Delhi
1999-2024

Lehigh Valley Hospital-Pocono
2022

Lehigh Valley Health Network
2022

Delhi Technological University
2021

Bharati Vidyapeeth Deemed University
2021

University of Cyprus
2020

Indiana University Bloomington
2012

University of Cincinnati
2003

Networks of small, densely distributed wireless sensor nodes are capable solving a variety collaborative problems such as monitoring and surveillance. We develop simple algorithm that detects tracks moving target, alerts along the projected path target. The involves only computation localizes communication to in vicinity target its course. is evaluated on small-scale testbed Berkeley motes using light source performance results presented emphasizing accuracy technique, with discussion about...

10.1109/vetecf.2003.1286181 article EN 2003-01-01

Mitogen-activated protein kinases (MAPKs) represent widely expressed and evolutionarily conserved proteins crucial for governing signaling pathways playing essential roles in mammalian male reproductive processes. These facilitate the transmission of signals through phosphorylation cascades, regulating diverse intracellular functions encompassing germ cell development testis, physiological maturation spermatozoa within epididymis, motility regulation at ejaculation female tract. The...

10.3389/frph.2024.1330161 article EN cc-by Frontiers in Reproductive Health 2024-02-09

Real-Time Bidding (RTB) has revolutionized digital advertising by enabling instantaneous transactions between publishers and advertisers through a complex technological ecosystem. This article examines the intricate data flows that power RTB, from initial inventory signal to final ad delivery, all occurring within milliseconds. It explores architectural components including Supply-Side Platforms, Demand-Side Ad Exchanges facilitate these transactions. The delves into optimization techniques...

10.30574/wjaets.2025.15.1.0189 article EN World Journal of Advanced Engineering Technology and Sciences 2025-04-06

A novel scheme is presented to realize a matching network working at two arbitrary frequencies. The load assumed be complex as well frequency dependent whereas the source-side impedance real. There are possible topologies of proposed network, thereby being able cater wider range impedances. In addition relatively miniaturized structures, closed form design equations also achieved for these designs. Many examples included show scheme. prototype operating 1GHz/2GHz designed validation....

10.1109/apmc.2015.7411641 article EN 2015 Asia-Pacific Microwave Conference (APMC) 2015-12-01

Abstract Background We have previously reported the induction of many interferon stimulated genes (ISGs) in PBMC collected from patients infected with HCV at various times after initiation interferon-ribavirin treatment using DNA microarrays to identify changes gene expression time. Almost as are down regulated (suppressed) during up regulated. Methods were analyzed by different software, including MAS5 (Affymetrix-Kegg) and GSEA (gene set enrichment analysis) specific pathways both Data was...

10.1186/1479-5876-10-54 article EN cc-by Journal of Translational Medicine 2012-03-22

This paper presents a dual-band wireless power transfer (WPT) system operating at industrial, scientific and medical (ISM) bands. The proposed WPT employs defected ground structure (DGS) concept, therefore possesses an extremely small size of 18×18 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> circuit. At first, the design resonator is realized then this utilized to develop system. Then fabricated on Rogers RO4350B. obtained...

10.1109/apmc46564.2019.9038874 article EN 2021 IEEE Asia-Pacific Microwave Conference (APMC) 2019-12-01

This paper describes a generalized multi-frequency impedance transformer capable of providing concurrent matching at arbitrary number frequencies. A frequency dependent complex load (FDCL) has been considered but the scheme is applicable for real loads as well. The exact analysis proposed design results in closed form equations with many independent free variables to cater wide range FDCLs. theory validated through prototype fabricated on Rogers RO5880, permittivity 2.2, and working...

10.1109/mms.2016.7803869 article EN 2016-11-01

This paper presents the design of a highly-efficient plus-shaped defected ground structure (DGS) based wireless power transfer (WPT) system that is applicable for low-power electronic devices. The prototype, developed on RO4350B op-erates at 0.4 GHz and occupies board area 30×30 mm2. proposed WPT advances existing state-of-the-art by exhibiting significantly superior figures merit (FoM). In particular, it possesses constant efficiency 86% between 20 mm 35 around industrial, scientific...

10.1109/imarc45935.2019.9118659 article EN 2021 IEEE MTT-S International Microwave and RF Conference (IMARC) 2019-12-01

In this paper, the design and implementation of robust precise localization navigation scheme are proposed for an autonomous mobile robot. The utilizes features Light Detection Ranging (LiDAR), Hector Simultaneous Mapping Localization (SLAM), Adaptive Monte Carlo (AMCL) which is intuitively integrated with Range Flow 2D Laser Odometry (RF2O) to achieve accuracy in pose identification Here, use SLAM aids avoiding obstacles, RF2O eliminates need additional hardware sensors odometry data. And...

10.1109/comsnets56262.2023.10041273 article EN 2023-01-03

Abstract In this article, a simplified balun structure inherently capable of providing high impedance transformation is proposed. The fulfills the requirements such as matching at all ports, output ports phase difference 180°, and isolation between ports. design symmetric network able to provide fully closed‐form equations using even‐odd mode analysis. proposed systematic approach also augments overall process. presence free variables in number flexibility including wide range ratios 0.1...

10.1002/mop.31450 article EN Microwave and Optical Technology Letters 2018-10-19

Design of a dual-band balun achieving simultaneous high impedance ratio (> 20) and band-ratio 10) is reported in this brief. The presented design, augmented with closed-form design equations systematic procedure, achieves excellent isolation between output ports good matching at all the ports. A number case studies are included to demonstrate capability approach for varying specifications port-terminations. prototype developed transformation (k) 5 frequency (r) concurrently evaluate show...

10.1109/tcsii.2020.2984787 article EN IEEE Transactions on Circuits & Systems II Express Briefs 2020-04-01

A fully on-chip Low Drop Out (LDO) regulator that uses an NMOS output transistor, designed in 22FDX technology, is presented. Proposed LDO capitalizes on technological advantages of back gate bias available to reduce the drop out voltage for and achieve wide band power supply rejection. Charge-pump used apply forward back-bias pass device its threshold down 0V enable low regulation. The generates 0.91V from 1.35V input with load current capacity 15mA. provides rejection achieving worst case...

10.1109/vlsid.2018.87 article EN 2018-01-01

A dual-band impedance transformer for achieving very high transformation (k) and frequency ratio (r) is presented in this paper. The design accompanied by a thorough analysis systematic procedure facilitating the rapid development of prototypes. number case studies show excellent flexibility proposed regards to ultra-high k r. Two prototypes, with specifications, working at concurrent r = 5, 8.04 15, 20 are fabricated validate architecture procedure. Subsequently, application demonstrated...

10.1109/access.2020.3008046 article EN cc-by IEEE Access 2020-01-01

In the design and development of front-end communication systems, arbitrary impedance environments are encountered frequently. this article, a three-port dual-band equal power divider is proposed which also transforms all types at its ports inherently. The suitable for wide range frequency ratios terminations each input output ports. A systematic procedure with flow graph provided. closed-form equations make process simple quick prototyping purposes. approach enhances flexibility...

10.1109/ojies.2021.3072151 article EN cc-by IEEE Open Journal of the Industrial Electronics Society 2021-01-01

Artificial intelligence (AI)-based computational techniques allow rapid exploration of the chemical space. However, representation compounds into computational-compatible and detailed features is one crucial steps for quantitative structure-activity relationship (QSAR) analysis. Recently, graph-based methods are emerging as a powerful alternative to chemistry-restricted fingerprints or descriptors modeling. Although modeling offers multiple advantages, its implementation demands in-depth...

10.1093/bib/bbac288 article EN Briefings in Bioinformatics 2022-07-22

In this paper, the design and implementation of robust precise localization navigation scheme are proposed for an autonomous mobile robot. The utilizes features Light Detection Ranging (LiDAR), Hector Simultaneous Mapping Localization (SLAM), Adaptive Monte Carlo (AMCL) which is intuitively integrated with Range Flow 2D Laser Odometry (RF2O) to achieve accuracy in pose identification Here, use SLAM aids avoiding obstacles, RF2O eliminates need additional hardware sensors odometry data. And...

10.1109/comsnets56262.2023.10041368 article EN 2023-01-03

A new dual-band impedance matching network for high transformation ratio and with inherent DC isolation capability is presented in this paper. The reported design utilizes two-section transmission line, a coupled-line section, stub between real- load source impedances at two arbitrarily chosen frequencies. closed form equations aongwith number of case studies have been provided to demonstrate the effectiveness proposed scheme very wide range impedances. Finally, technique has validated...

10.1109/apmc.2017.8251639 article EN 2021 IEEE Asia-Pacific Microwave Conference (APMC) 2017-11-01

This paper proposes a novel design of dual-band impedance matching network using unequal susceptance cancellation. It derives and illustrates the interesting property stub to cancel susceptances, irrespective sign, at any two arbitrary frequencies interest. increases flexibility ease. To validate presented theory, prototype operating 1.0 GHz 1.8 GHz, has been fabricated on RO5880 (ε <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</sub> = 2.2)....

10.1109/imarc.2018.8877187 article EN 2021 IEEE MTT-S International Microwave and RF Conference (IMARC) 2018-11-01

A dual-band balun capable of providing inherent impedance transformation required for unequal terminations at the balanced and unbalanced ports is proposed in this paper. systematic design analysis carried out to provide closed-form equations quick prototyping. Design cases are included demonstrate effectiveness developed procedure. The achieving a high frequency ratio (1.6<; r<; 5.0) (1<; k<; 10). prototype operating 1/2.6GHz port 25Ω 75Ω fabricated evaluation both An excellent agreement...

10.23919/eumc48046.2021.9337973 article EN 2021-01-12

This paper presents a modified architecture for wide band phase shifter. The proposed design consists of main line with T-network and conventional reference an L-network. For quick prototyping, the examples are demonstrated to work several shifts upto 90° bandwidth. To verify given procedure, shifter, working at 1.8 GHz, is prototyped on Rogers5880 substrate thickness 1.575 mm dielectric constant 2.2. prototype able provide difference over bandwidth 106% considering only 3° ripples. measured...

10.1109/apmc.2017.8251434 article EN 2021 IEEE Asia-Pacific Microwave Conference (APMC) 2017-11-01

In this paper, a high frequency balun with very simple and intuitive impedance matching procedure is presented. Owing to the presence of symmetry in proposed structure, even-odd mode analysis applied which results into closed-form design equations. Since, has many variables that can be chosen independently, equations are investigated assess limitation choice different variables. Based on theory, been designed for operation at 2GHz implemented RO4350B substrate. The EM simulation measured...

10.1109/apmc.2016.7931394 article EN 2015 Asia-Pacific Microwave Conference (APMC) 2016-12-01
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