Mother Theresa Institute of Science and Technology

Sattupalli, India

Mother Theresa Institute of Science and Technology

Sattupalli, India
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Madhav B.T.P.,Koneru Lakshmaiah College of Engineering | Pisipati V.G.K.M.,Koneru Lakshmaiah College of Engineering | Khan H.,Koneru Lakshmaiah College of Engineering | Prasad V.G.N.S.,Mother Theresa Institute of Science and Technology | And 2 more authors.
International Journal of Applied Engineering Research | Year: 2011

This paper presents a square patch array antenna on liquid crystal substrate at 24GHz. The proposed square patch array antenna will be in light weight, flexible, slim and compact unit compare with current antennas at this frequency. This paper also presents the detail steps of designing the square patch microstrip array antenna and simulated results using Ansoft-HFSS. Coaxial feeding is taken in this designing. The proposed square patch microstrip array antenna basically is a phased array consisting of '4' elements (square patch antennas) arranged in a rectangular grid. The size of each element is determined by the operating frequency. The return loss, input impedance smith chart, 3D, 2D gain, VSWR and other parameters are simulated and presented in this paper. © Research India Publications.


Madhav B.T.P.,Koneru Lakshmaiah College of Engineering | Pisipati V.G.K.M.,Koneru Lakshmaiah College of Engineering | Khan H.,Mother Theresa Institute of Science and Technology | Prasad V.G.N.S.,Mother Theresa Institute of Science and Technology | And 2 more authors.
Journal of Engineering Science and Technology Review | Year: 2011

In this paper we presented the design and analysis of Bow-Tie antenna on liquid crystal substrate, which is suitable for the Bluetooth/WLAN-2.4/WiBree/ZigBee applications. The Omni-directional radiation patterns along with moderate gain make the proposed antenna suitable for above mentioned applications. Details of the antenna design and simulated results Return loss, Input impedance, Radiation Patterns, E-Field, H-Field and Current Distributions, VSWR are presented and discussed. The proposed antenna is simulated at 2.4 GHz using Ansoft HFSS-11. © 2011 Kavala Institute of Technology.


Nagarjuna M.,Dhanekula Institute of Engineering and Technology | Rao M.V.R.,Mother Theresa Institute of Science and Technology | Naresh P.,P.A. College | Silpa M.,Dhanekula Institute of Engineering and Technology | And 3 more authors.
Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B | Year: 2015

LiF-CaO-B2O3 glasses doped with different concentrations of Ag2O have been synthesized. The dielectric properties, viz., dielectric constant, loss tangent and AC conductivity were studied as a function of the concentration of Ag2O over a wide range of frequency and temperature. AC conductivity,s, is found to increase while the activation energy for AC conduction and is found to decrease with increase in the concentration of Ag2O. The AC conductivity of these glasses is found to obey the relation, σ(ω)=Aωs; the low temperature part of the AC conductivity has been explained on the basis of quantum mechanical tunnelling of electrons. The density of the defect energy states N(EF) near the Fermi level for these glasses has been evaluated and it is found to decrease with increase in the concentration of Ag2O. The range of the values of N(EF) obtained suggests that the AC conductivity is due to the localized states is near the Fermi level. The conduction in the high temperature range could successfully be explained on the basis of ionic conduction.


Madhav B.T.P.,Koneru Lakshmaiah College of Engineering | Madhav B.T.P.,Mother Theresa Institute of Science and Technology | Pisipati V.G.K.M.,Koneru Lakshmaiah College of Engineering | Pisipati V.G.K.M.,Mother Theresa Institute of Science and Technology | And 6 more authors.
Journal of Theoretical and Applied Information Technology | Year: 2010

A microstrip elliptical patch antenna was designed on liquid crystal polymer substrate for ultra wide band wireless communications. The proposed ultra wide band antenna simply consist of an elliptical patch with coaxial feeding and liquid crystal polymer substrate of 3.16 permittivity and 0.004 dielectric loss tangent placed on the ground plane. At operating frequencies of 4.5, 6, 8 GHz, the proposed UWB elliptical patch antenna was simulated which covers the range of UWB (3.1 to 10.6 GHZ). This study includes the presentation of return loss, input impedance, 3D-gain, 2D-gain, radiation patterns, E-field, H-field distributions and current distribution. © 2005 - 2010 JATIT & LLS.

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