Pradyot Kala

Pradyot Kala
Active energy pvt ltd, India · Advisor

About

28
Publications
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56
Citations
Introduction

Publications

Publications (28)
Article
Background Mitral valve repair with MitraClip is an established method in the treatment of severe mitral regurgitation. Effect on mitral regurgitation severity, NYHA class and left ventricular function is known, as well as on mortality and number of hospitalizations. Otherwise, there is a lack of evidence, if a successful repair can affect the numb...
Article
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Objective: The objective of the study was to evaluate the anti-oxytocic activity of ethanolic extract of Asparagus racemosus root. Methods: Ethanolic extract of A. racemosus root was taken by Soxhlet extraction method. Wistar strain albino non-pregnant female rats of weight 200–300 g were pre-treated with estrogen and were sacrificed to take their...
Article
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A compact short ended coplanar waveguide (CPW) feed dual-band antenna encouraged with metamaterial using composite right/left-handed transmission line (CRLH - TL) technique presented here. The antenna designed to operate at series resonance as the performance of the antenna categorised by the combination of series (Lse, Cse) elements. This proposed...
Article
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This paper presents a combination of an inductive coupling technique and coplanar ground plane microstrip filter. Here, inductive coupling technique is used to overcome the unwanted radiation loss generated by the gap between the co-planar ground plane and the transmission line which improves filter characteristics. A defected ground structure (DGS...
Article
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A novel zeroth‐order resonator (ZOR) meta‐material (MTM) antenna with dual‐band is suggested using compound right/left handed transmission line as MTM. In this article, suggested antenna consists of patch through series gap, two meander line inductors, and two circular stubs. The MTM antenna is compact in size which shows dual‐band properties with...
Article
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In this paper, we discussed about the work done by researchers for the enhancement of performance of a multiband BPF by introducing different defected ground structure (DGS) geometries. A DGS structure on a conventional inductively coupled band pass filter is used to miniaturize the resonator. By introducing a DGS on the transversal dimension of th...
Article
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In this article, a novel omnidirectional compact dual band metamaterial‐inspired antenna with CPW feed has been proposed for application of GSM 1800 (1.71‐1.785 GHz/1.805‐1.879 GHz), GSM 1900 (1.85‐1.91 GHz/1.93‐1.99 GHz), UMTS (1.92‐2.17 GHz), WLAN/Wi Fi (4.9, 5, 5.9 GHz), HiperLAN1 (5.15‐5.3 GHz), and HiperLAN2 (5.47‐5.72 GHz) using a combination...
Chapter
This paper presents a wideband antenna for millimeter-wave application. In modern era, all wireless devices are multipurpose and versatile, so this requires a wideband antenna to perform different tasks. A single antenna is used rather than more antennas in a device, to reduce the size and cost of the device. Proposed antenna has a wide bandwidth o...
Chapter
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An investigation into the design of Giuseppe Peano fractal patch antenna and reactive impedance surface (RIS) is presented in this study. We investigate the properties and possibilities of application of RIS-based Giuseppe Peano fractal geometry for the antenna miniaturization, bandwidth increment, gain improvement, resonance frequency decrement an...
Article
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In this paper an efficient high performing cost-effective, compact size BPF is designed for wireless application is designed. There are various technologies have been introduced from time to time to address these concerns which also include those in the field of microwave filters like Photonic Band Gap structures (PBG), defected ground structures (...
Article
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In recent years, the science of fractal geometry has grown into a vast area of knowledge, with almost all branches of science and engineering gaining from the new insights it has provided. In this paper modified Sierpinski fractal patch behavior has been presented and discussed. The antenna had a log periodic behavior, the log period being related...
Article
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The objective of this paper is to develop a comparative analysis of rectangular and triangular cylindrical microstrip patch antenna. In this study we would like to take into account the problems of resonance and radiation of cylindrical rectangular and triangular microstrip patch antenna. Design procedure involves parameters related to cylindrical...
Article
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This paper presents the electrically small U-slot loaded circular microstrip patch antenna with Complementary Split Ring Resonator (CSRR). The technique of U slot loading is used for operating antenna in dual band and CSRR technique to make antenna compact and CSRR for compactness is used. The simple circular patch antenna resonates at 5.71 GHz wit...
Article
In this paper we present the estimation of the characteristic impedance and the effective dielectric constant of Coplanar Waveguide(CPW) using conformal mapping theory and performances are predicted using theoretical analysis. Numerically efficient and accurate formulae based on the conformal mapping method for the analysis of coplanar waveguide st...
Article
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This paper presents a theoretical study of the different characteristics of an L-probe fed planar rectangular microstrip patch antenna mounted on a cylindrical ground structure. A transmission line model is used for the calculation of its input impedance. The radiation pattern of the structure is obtained by aperture method. Effect of ground curvat...
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A more accurate and numerically efficient Transmission Line model is proposed for a bow-tie microstrip patch antenna to include the effect of flare angle of nonradiating edges on the antenna characteristics. A comparison between MoM, Moussakhani Transmission Line model and proposed Transmission Line model show that the results of VSWR and resonant...
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Detail theoretical formulation and results for an electromagnetically coupled stacked rectangular-cylindrical microstrip patch antenna have been presented.
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The aperture method is used to examine the effect of (i) aspect ratio and curvature on polarization, and (ii) curvature on the radiation pattern for thin substrate cylindrical rectangular microstrip antenna. Numerical computations of the E θ θ θ θ and E φ φ φ φ for different modes for different cylinder radii and aspect ratios have been carried out...
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The effects of position of shorting pin and feed-probe in an equilateral triangular microstrip patch antenna are theoretically taken into account using transmission line model. At d s /d h =0.33, frequency ratio (FR) of upper resonant frequency to lower resonant frequency is minimum. It is observed that the minimum FR decreases if substrate permitt...
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The objective of this work is to develop a simple method to calculate the input impedance and radiation pattern of short-circuited quarter wavelength long cylindrical-rectangular microstrip patch antenna. It is also to study the effect of the size of cylinder as well as the parameters of dielectric substrate. In this study we would like to take int...
Article
Using the beat-length measurement technique an experimental method is described to determine the modal birefringence characteristics of fundamental type of elliptical core polarization maintaining fibers.
Article
The present article communicates an experimental method to determine the characteristics of polarization-maintaining fibers. A beat-length measurement technique has been employed for the analysis
Article
The present article communicates an experimental method to determine the characteristics of polarization-maintaining fibers. A beat-length measurement technique has been employed for the analysis.
Article
Full-text available
This paper presents the designing of a rectangular microstrip antenna using Multi Layer Preceptron (MLP) neural network model. The model was trained for 40 set of input-output (length of patch-resonant frequency) parameters. The output error and time delay (no. of epochs) were optimized by changing the learning rate and momentum term. In case of te...

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