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Pradeep Kumar

Bio: Pradeep Kumar is an academic researcher from Bose Corporation. The author has contributed to research in topics: Antenna efficiency & Radiation pattern. The author has an hindex of 2, co-authored 13 publications receiving 14 citations. Previous affiliations of Pradeep Kumar include YMCA University of Science and Technology.

Papers
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Journal ArticleDOI
TL;DR: A laboratory prototype model of the Power Factor Correction circuit is designed and fabricated and mathematical modelling and simulation of the power factor correction circuit are implemented on the MATLAB Simulink.
Abstract: This paper presents a design, development and simulation of a controller prototype for Power Factor Correction circuit applied to BLDC Motor Control. A laboratory prototype model of the Power Factor Correction circuit is designed and fabricated. Mathematical modelling and simulation of the power factor correction circuit are implemented on the MATLAB Simulink. The control algorithm is implemented on a 16 bit microcontroller dsPIC33FJ32MC204 from Microchip. Experimental results thus obtained on the prototype are also reported in the paper.

5 citations

Journal ArticleDOI
TL;DR: This review paper covers all the proposed techniques and methods for each design aspect of reconfigurable antenna and analysis them to determine deficiency and problem and propose as the future scope.
Abstract: Reconfigurable antenna plays a tremendous role in the modern wireless communication engineering. Already lot of works has been proposed by researchers related to every aspect of the reconfigurable antenna development. For the future of communication engineering, researchers have to develop power efficient multiband antenna which can resonance at high frequency. For this, every design phase of reconfigurable antenna need to re-watch, start from the selection of substrate material, feeding technology, design structure to switching techniques. This review paper covers all the proposed techniques and methods for each design aspect and analysis them to determine deficiency and problem and propose as the future scope. Conclusion of each aspect will help researchers to start working in new untouched areas which will enhance the antenna performance.

5 citations

Proceedings ArticleDOI
01 Dec 2019
TL;DR: In this paper, a compact antenna designed on Rogers RTDuroid 5880 substrate is presented which covers super wide bandwidth of 3.21GHz-19.43GHz and has maximum gain of 5.33dbi and radiation efficiency of 86%.
Abstract: In the presented manuscript, a compact antenna designed on Rogers RTDuroid 5880 substrate is presented which covers superwide bandwidth of 3.21GHz-19.43GHz. On one face of substrate, square monopole patches are printed and common ground on other side. Designed antenna is converted to dual notched band characteristics which mitigates Wireless Local Area Network (WLAN: 5.150GHz-5.825GHz) and Downlink Satellite System (DSS: 7.25GHz-7.75GHz) interference. These two notched bands are obtained by using inverted T-shaped stub and rotated C-shaped slot on radiating patch. Designed antenna has maximum gain of 5.33dbi and radiation efficiency of 86%. Far Field Radiation pattern shows omnidirectional and dipole like pattern in H- and E-plane. Diversity performance of MIMO antenna is also studied in terms of ECC (Envelope Correlation Coefficient), DG (Directive Gain) and TARC (Total Active Reflection Coefficient).

4 citations

01 Sep 2019
TL;DR: This paper will throw the light on evolution and the development of various generations of mobile wireless technology with their significance and advantages over one another, and introduce the fundamental wireless mobile communication for future or next generation technology.
Abstract: The advance implementation of 5G technology are being made on the development of WWW (World Wide Web). In this paper we will throw the light on evolution and the development of various generations of mobile wireless technology with their significance and advantages over one another. In past decades, wireless technologies have been classified according to their generations. As 5G is not officially in use but it will offer the services like documentation, electronic transactions such as e-payments, e-transactions etc. Researches in the technology will open a new epoch in mobile communication systems since last few years. The paper is particularly created to introduce the fundamental wireless mobile communication for future or next generation technology. The upcoming mobile technology will support IPv6 and flat IP. The main focus of fifth generation is on VOIP (Voice over Internet Protocol).

4 citations

Proceedings ArticleDOI
01 Feb 2020
TL;DR: In this article, a monopole antenna designed for UWB (Ultrawideband) and X band applications is presented, which is formed by merging two rectangular patches and modified rectangular ground plane leading to impedance bandwidth of 2.82GHz-15.73GHz.
Abstract: This research article discusses monopole antenna designed for UWB (Ultrawideband) and X band applications. Patch is formed by merging two rectangular patches and modified rectangular ground plane leading to impedance bandwidth of 2.82GHz-15.73GHz. Antenna is also capable of removing three interfering bands namely Wireless Interoperability for Microwave Access (WiMAX/C band: 3.30GHz - 3.80GHz / 3.80GHz - 4.20GHz), Wireless Local Area Network (WLAN: 5.150GHz - 5.825GHz) and Downlink Satellite System (DSS: 7.25GHz - 7.75GHz). These interfering bands are further reconfigured by using RF PIN diode so that each interference can be controlled individually. WiMAX notched band is achieved by etching circular slot on radiating patch, WLAN is obtained by using C-shaped parasitic stubs near feed line and DSS notched band is due to T-shaped slot also etched on radiating patch. Designed antenna offers good frequency, space and time domain analysis with stable radiation pattern, maximum gain of 4.85dBi, radiation efficiency of 89%, acceptable impulse response and group delay ≤0.20ns. The entire above designed features and results offers designed antenna for number of applications in wireless communication system.

2 citations


Cited by
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Journal Article
TL;DR: In this article, the authors discuss the effect of large-scale power transfer on the power transmission system and show that the control on the system becomes weak and the power transfer can become insecure in case of huge power movements.
Abstract: Through the years there has been an increment in the huge amount of power transfers and third party approaches. Despite the fact, electric power transmission facilities throughout the world are not openly allowed to progress because of the different environmental, land-use and regulatory pressures that arise. As a result upholds in transmission, irregular facility usage, and undesirable parallel pathways or loop movements are being experienced. When there is an increase in power transfer the operating system becomes difficult to manage ultimately becomes complex. Because of this complexity the control on the system becomes weak and the power transfer can become insecure in case of huge power movements.

19 citations

Journal ArticleDOI
TL;DR: The cytotoxicity of free-NS and NS in NP showed the highest cytotoxic effect with NPNSCS on PC-3 cells (IC50 = 89 μM), and 100% NS was released from NP under sink conditions in less than 2h.

17 citations

Journal ArticleDOI
01 Mar 2021-Heliyon
TL;DR: In this article, a heart-shaped monopole antenna is proposed for wireless portable communication devices, which exhibits nearly an omnidirectional pattern in the elevation plane with a maximum radiation efficiency of 82.78% at 3.99 GHz, while a peak gain of 4.7 dBi is obtained at 6.5 GHz.

11 citations

Journal ArticleDOI
TL;DR: In this paper, a reconfigurable quad-port orthogonal multi-input-multi-output (MIMO) antenna is proposed for dedicated short range communication (DSRC), WLAN, RADAR and Ku-band applications.
Abstract: A novel and compact reconfigurable quad-port orthogonal Multi-Input-Multi-Output (MIMO) antenna is proposed for Dedicated Short Range Communication (DSRC), WLAN, RADAR and Ku-band applications. The proposed MIMO antenna is fabricated on FR-4 substrate of dimensions 40 × 40 × 0.8 mm3. Each element of MIMO antenna has attained different Ku-band frequencies and lower frequency operating band 5.5–9.2 GHz suitable for DSRC, WLAN and RADAR applications is obtained by M-3 element of proposed MIMO antenna for diode ON condition in ground plane. Individual MIMO element is investigated with respect to S-parameters, isolation, current distribution, radiation pattern, gain, radiation efficiency, Total Active Reflection Coefficient (TARC) and diversity performance parameters like Envelope Correlation Coefficient (ECC), Diversity Gain (DG) and Mean Effective Gain (MEG). Overall gain of MIMO antenna ranges between 3.36 and 7.57 dB in operating bands and radiation efficiency ranges between 70.4 and 89.7%. Time domain characteristics are analyzed using group delay with respect to all ports and group delay is less than 1.5 ns. ECC values are below 0.05, DG is very close to 10 and MEGi

7 citations

Proceedings ArticleDOI
01 Jun 2020
TL;DR: In this article, the authors proposed a compact wideband microstrip band pass filter for 3.5GHz with excellent performance for the next generation mobile standards “5G”, which is based on a rectangular T-Shaped resonator.
Abstract: In this paper, we introduce a compact wideband microstrip band pass filter for 3.5GHz, with excellent performance for the next generation mobile standards “5G”. The frequency band also includes the frequencies of the WIMAX (Worldwide Interoperability for Microwave Access) and WLAN (wireless local area network) applications. The proposed band pass filter is based on a rectangular T-Shaped resonator. Their dimensions are equal to 9×5mm2. The proposed compact microstrip band pass filter has been designed by software CST Microwave Studio using FR4 substrate having relative permittivity (e r ) of 4.3. This filter has a center frequency of 4,75GHz and 3dB bandwidth from 3 to 6GHz, an insertion loss low than 1dB, a return loss better than 30dB and also a fractional bandwidth more than 70%. This results are in good agreement with those accomplished by Advanced Design System “ADS”.

7 citations