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A novel and simple frequency reconfigurable microstrip antenna using a PIN diode for multiband operation is proposed. For designing and simulating the proposed antenna CST Microwave Studio (CST MWS)-2014 tool is used. The effect of slots with a single PIN diode is studied and simulation results were analyzed. For PIN diode ON condition the designed reconfigurable antenna is resonating at 0.42 GHz,...
In this paper an adaptive reconfigurable antenna having a number of reconfigurable features is presented. The proposed antenna can reconfigure its frequency, polarization state, and radiation pattern. Printed parts of the proposed antenna are reused multiple times in other reconfiguration mode using PIN diodes. The antenna can tunes its resonant frequency in five different bands by switching the microstrip...
Resonators can be energized using different feeding mechanisms. The effect of U-shaped Microstrip feed electromagnetically coupled to an open loop resonator is presented in this paper. The proposed feeding mechanism induces a band-stop response for the resonator. The band-stop filter optimized by simulation is fabricated and tested using Keysight E 5080 A Vector Network Analyzer. The measured results...
The emotional database can be classified as spontaneous and simulated emotions. Spontaneous emotions can be identified based on the two parameters 1) Arousal and 2) Valence values represented in a two dimensional plane. Arousal measures how calming or exciting the information is, whereas valence measures postive or negative affectivity of information. The objective of the paper is to predict the arousal...
Glottal closure instant (GCI) is an important feature in many speech processing applications. Many algorithms have been proposed for GCI estimation from speech signals. The objective of the proposed work is to provide a comprehensive analysis of the performance of various GCI estimation algorithms for singing voice in Indian context. GCI estimation algorithms such as Dynamic Programming Phase Slope...
Due to significant signal attenuation, the speech signals collected at different distances show degradation in the estimation of speech parameters. Therefore the work presented in this paper proposes an alternate method for improving the F0 parameter estimation from distant speech (DS) signals which are collected through microphones at various distances. The proposed method achieves improved F0 estimation...
A high isolation Diplexer with Pentagonal Open Loop Resonators (P-OLR) is presented in this paper. The Diplexer contains two resonators providing pass bands in the desired frequency, thus attaining significant size reduction. The P-OLR offers several design freedoms, such as the pass band frequency can be adjusted by properly tuning its geometrical parameters and its bandwidth can be controlled through...
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