Dipali Soren | Christian College Of Engineering And Technology Bhilai (original) (raw)

Papers by Dipali Soren

i-manager's journal on wireless communication networks, 2016

An Ultra wideband Monopole Square-shaped dielectric resonator antenna (DRA) is proposed. The squa... more An Ultra wideband Monopole Square-shaped dielectric resonator antenna (DRA) is proposed. The square-shaped DRA is excited with monopole. An impedance bandwidth ranging from 5.2GHz to 13.5 GHz is achieved. The gain of the proposed antenna varies from 3.88 to 5.27 dBi over the operating band.

International Journal of Signal and Imaging Systems Engineering, 2013

Radio electronics and communications systems, Dec 1, 2018

This paper presents a wideband Sierpinski carpet fractal patterned rectangular Dielectric Resonat... more This paper presents a wideband Sierpinski carpet fractal patterned rectangular Dielectric Resonator Antenna (DRA) operating in the X-band, which is characterized by dielectric waveguide model method (DWM). In order to decrease the cost of the DRA the low-cost teflon is used as the material. A prototype is realized to validate the results of the simulation. The paper provides a comparison between conventional rectangular DRA and fractal shaped rectangular DRAs of the first and the second iterations. The antenna design methodology is discussed along with its resonance and radiation characteristics. The validity of the obtained results is proved by the close match of the experimental and simulation results. The measurements on prototype show impedance bandwidth of 48% covering the entire X-band with similar radiation pattern throughout the band with a gain of 7.5 dBi over 9.0-11.5 GHz.

Journal of Electromagnetic Analysis and Applications, 2012

In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (D... more In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realized from low cost Teflon. An impedance bandwidth of 50% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 5.5 dBi.

International Journal of Rf and Microwave Computer-aided Engineering, Feb 24, 2012

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ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA)... more ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA) with microstrip line feed arrangement is presented in this paper. A solid rectangular dielectric resonator mounted on a vertical ground plane edge with a micro strip line feed monopole arrangement reduces the total antenna volume as compared with horizontal ground plane. In addition, the antenna weight is also reduced significantly by the removal of materials in Sierpinski carpet fractal pattern. An impedance bandwidth of 87.86 % is obtained with similar radiation pattern throughout the band. The average peak gain within the band is about 4.6 dBi.

Smart Technologies for Energy, Environment and Sustainable Development, Vol 1, 2022

International Journal of RF and Microwave Computer-Aided Engineering, 2012

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CdS nanocrystalline films were prepared by chemical bath deposition method (CBD) on glass substra... more CdS nanocrystalline films were prepared by chemical bath deposition method (CBD) on glass substrates at 70c for 1 hour. Mercaptoethanol, Thioglycerol, and water-soluble PVP have been used as capping agents for the synthesis of these films. The effect of capping agents on the structural, morphological and optical properties of the films was investigated and discussed. The films were characterised by XRD, SEM and UV-VIS absorption spectral studies. XRD studies shows prominent diffraction lines of CdS with maximum orientation towards (111) plane of the cubic phase. Sharp peaks were observed in PVP capped CdS in comparison to Mercaptoethanol and Thioglycerol capped films. Particle sizes calculated from XRD studies were found to be in nano range. Distinctly different morphology is observed in the films capped with Mercaptoethanol, Thioglycerol and PVP in comparison with the bulk films. CdS films show large sized clusters of particles while Mercaptoethanol and PVP capped films show spheri...

Progress In Electromagnetics Research B, 2014

This article presents a comprehensive review of the research carried out on Dielectric Resonator ... more This article presents a comprehensive review of the research carried out on Dielectric Resonator Antennas (DRAs) over the last three decades. Dielectric resonator antennas (DRAs) have received increased attention in various applications due to their attractive features in terms of high radiation efficiency, light weight, small size and low profile. Over last decades, various bandwidth enhancement techniques have been developed for DRAs. In this article, the attention is focused on a type of DRAs that can offer multi-resonance frequencies and these frequencies can be merged into a broad band. In order to effectively review design techniques, DRAs in this article are categorized into three types, broadband, ultra-wideband (UWB) and multiband. The latest developments in DRAs are discussed in the limited scope of this article.

This article provides a focused review on different properties of Cadmium Sulfide (CdS) nano mate... more This article provides a focused review on different properties of Cadmium Sulfide (CdS) nano material. CdS is an important II–VI semiconductor compound having potential applications in light-emitting diodes, thin film transistors, solar cells and photoconductive devices. As compared to bulk materials, CdS nano particles also have unique electrical and optical properties. Keeping this in view, researchers have explored several new substrates and methods for synthesis of CdS material. Some recent contributions of authors about new techniques and properties of CdS nano material and their use in a variety of fields are discussed.

Radioelectronics and Communications Systems

International Journal of Signal and Imaging Systems Engineering, 2013

In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator ... more In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realised using Teflon. Its resonance and radiation characteristics are discussed. The resonance characteristics of Sierpinski gasket triangular DRA of first iteration and second iteration are reported that show an improvement in impedance bandwidth. An impedance bandwidth of 40% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 6.5 dBi.

2013 IEEE Applied Electromagnetics Conference (AEMC), 2013

2011 Indian Antenna Week (IAW), 2011

ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA)... more ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA) with microstrip line feed arrangement is presented in this paper. A solid rectangular dielectric resonator mounted on a vertical ground plane edge with a micro strip line feed monopole arrangement reduces the total antenna volume as compared with horizontal ground plane. In addition, the antenna weight is also reduced significantly by the removal of materials in Sierpinski carpet fractal pattern. An impedance bandwidth of 87.86 % is obtained with similar radiation pattern throughout the band. The average peak gain within the band is about 4.6 dBi.

Journal of Electromagnetic Analysis and Applications, 2012

In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (D... more In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realized from low cost Teflon. An impedance bandwidth of 50% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 5.5 dBi.

International Journal of Signal and Imaging Systems Engineering, 2013

In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator ... more In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realised using Teflon. Its resonance and radiation characteristics are discussed. The resonance characteristics of Sierpinski gasket triangular DRA of first iteration and second iteration are reported that show an improvement in impedance bandwidth. An impedance bandwidth of 40% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 6.5 dBi.

i-manager's journal on wireless communication networks, 2016

An Ultra wideband Monopole Square-shaped dielectric resonator antenna (DRA) is proposed. The squa... more An Ultra wideband Monopole Square-shaped dielectric resonator antenna (DRA) is proposed. The square-shaped DRA is excited with monopole. An impedance bandwidth ranging from 5.2GHz to 13.5 GHz is achieved. The gain of the proposed antenna varies from 3.88 to 5.27 dBi over the operating band.

International Journal of Signal and Imaging Systems Engineering, 2013

Radio electronics and communications systems, Dec 1, 2018

This paper presents a wideband Sierpinski carpet fractal patterned rectangular Dielectric Resonat... more This paper presents a wideband Sierpinski carpet fractal patterned rectangular Dielectric Resonator Antenna (DRA) operating in the X-band, which is characterized by dielectric waveguide model method (DWM). In order to decrease the cost of the DRA the low-cost teflon is used as the material. A prototype is realized to validate the results of the simulation. The paper provides a comparison between conventional rectangular DRA and fractal shaped rectangular DRAs of the first and the second iterations. The antenna design methodology is discussed along with its resonance and radiation characteristics. The validity of the obtained results is proved by the close match of the experimental and simulation results. The measurements on prototype show impedance bandwidth of 48% covering the entire X-band with similar radiation pattern throughout the band with a gain of 7.5 dBi over 9.0-11.5 GHz.

Journal of Electromagnetic Analysis and Applications, 2012

In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (D... more In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realized from low cost Teflon. An impedance bandwidth of 50% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 5.5 dBi.

International Journal of Rf and Microwave Computer-aided Engineering, Feb 24, 2012

Skip to Main Content. ...

ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA)... more ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA) with microstrip line feed arrangement is presented in this paper. A solid rectangular dielectric resonator mounted on a vertical ground plane edge with a micro strip line feed monopole arrangement reduces the total antenna volume as compared with horizontal ground plane. In addition, the antenna weight is also reduced significantly by the removal of materials in Sierpinski carpet fractal pattern. An impedance bandwidth of 87.86 % is obtained with similar radiation pattern throughout the band. The average peak gain within the band is about 4.6 dBi.

Smart Technologies for Energy, Environment and Sustainable Development, Vol 1, 2022

International Journal of RF and Microwave Computer-Aided Engineering, 2012

Skip to Main Content. ...

CdS nanocrystalline films were prepared by chemical bath deposition method (CBD) on glass substra... more CdS nanocrystalline films were prepared by chemical bath deposition method (CBD) on glass substrates at 70c for 1 hour. Mercaptoethanol, Thioglycerol, and water-soluble PVP have been used as capping agents for the synthesis of these films. The effect of capping agents on the structural, morphological and optical properties of the films was investigated and discussed. The films were characterised by XRD, SEM and UV-VIS absorption spectral studies. XRD studies shows prominent diffraction lines of CdS with maximum orientation towards (111) plane of the cubic phase. Sharp peaks were observed in PVP capped CdS in comparison to Mercaptoethanol and Thioglycerol capped films. Particle sizes calculated from XRD studies were found to be in nano range. Distinctly different morphology is observed in the films capped with Mercaptoethanol, Thioglycerol and PVP in comparison with the bulk films. CdS films show large sized clusters of particles while Mercaptoethanol and PVP capped films show spheri...

Progress In Electromagnetics Research B, 2014

This article presents a comprehensive review of the research carried out on Dielectric Resonator ... more This article presents a comprehensive review of the research carried out on Dielectric Resonator Antennas (DRAs) over the last three decades. Dielectric resonator antennas (DRAs) have received increased attention in various applications due to their attractive features in terms of high radiation efficiency, light weight, small size and low profile. Over last decades, various bandwidth enhancement techniques have been developed for DRAs. In this article, the attention is focused on a type of DRAs that can offer multi-resonance frequencies and these frequencies can be merged into a broad band. In order to effectively review design techniques, DRAs in this article are categorized into three types, broadband, ultra-wideband (UWB) and multiband. The latest developments in DRAs are discussed in the limited scope of this article.

This article provides a focused review on different properties of Cadmium Sulfide (CdS) nano mate... more This article provides a focused review on different properties of Cadmium Sulfide (CdS) nano material. CdS is an important II–VI semiconductor compound having potential applications in light-emitting diodes, thin film transistors, solar cells and photoconductive devices. As compared to bulk materials, CdS nano particles also have unique electrical and optical properties. Keeping this in view, researchers have explored several new substrates and methods for synthesis of CdS material. Some recent contributions of authors about new techniques and properties of CdS nano material and their use in a variety of fields are discussed.

Radioelectronics and Communications Systems

International Journal of Signal and Imaging Systems Engineering, 2013

In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator ... more In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realised using Teflon. Its resonance and radiation characteristics are discussed. The resonance characteristics of Sierpinski gasket triangular DRA of first iteration and second iteration are reported that show an improvement in impedance bandwidth. An impedance bandwidth of 40% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 6.5 dBi.

2013 IEEE Applied Electromagnetics Conference (AEMC), 2013

2011 Indian Antenna Week (IAW), 2011

ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA)... more ABSTRACT A Sierpinski carpet fractal patterned rectangular dielectric resonator antenna (SCFRDRA) with microstrip line feed arrangement is presented in this paper. A solid rectangular dielectric resonator mounted on a vertical ground plane edge with a micro strip line feed monopole arrangement reduces the total antenna volume as compared with horizontal ground plane. In addition, the antenna weight is also reduced significantly by the removal of materials in Sierpinski carpet fractal pattern. An impedance bandwidth of 87.86 % is obtained with similar radiation pattern throughout the band. The average peak gain within the band is about 4.6 dBi.

Journal of Electromagnetic Analysis and Applications, 2012

In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (D... more In this paper, a wideband Sierpinski carpet patterned cylindrical Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realized from low cost Teflon. An impedance bandwidth of 50% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 5.5 dBi.

International Journal of Signal and Imaging Systems Engineering, 2013

In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator ... more In this work, a wideband Sierpinski gasket patterned equilateral triangular Dielectric Resonator Antenna (DRA) operating in the X-Band is proposed. This DRA is realised using Teflon. Its resonance and radiation characteristics are discussed. The resonance characteristics of Sierpinski gasket triangular DRA of first iteration and second iteration are reported that show an improvement in impedance bandwidth. An impedance bandwidth of 40% is obtained covering the entire X-band with similar radiation pattern throughout the band. The average peak gain within the band is about 6.5 dBi.