An antenna is defined by Oxford Dictionary as ? a usually metallic device for radiating or receiving radio waves ?. The IEEE Standard Definitions of terms for Antennas ( IEEE Std 145-1973) defines the antenna or aerial as ? a means for radiating or receiving radio waves ?. In other words the antenna is the transitional structure between free-space and a guiding device. The guiding device or transmission line may take the form of a coaxial line or a hollow pipe (wave guide) and it is used to transport electromagnetic energy from the transmitting ....etc

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Presented By:
S.G. Lokhre, P.R. Apte, R.Raajeev* and R. Lal*

Solid State Electronics Group
Tata Institute of Fundamental Research
Homi Bhabha Road
Colaba, BOMBAY - 400 005, India



ABSTRACT

Balanced doubly suspended structure has been used earlier for very precise high Q resonators. But here we have used the unbalanced half section which is sputter deposited with a magnetic film. The central axis acts like a torsion wire of about a micron width and thickness. The outer arm deflects downwards about the torsi ....etc

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H-Shaped Dielectric Resonator Antenna for UWB application




INTRODUCTION
The extremely wide spectrum of 3.1 to 10.6 GHz with 15 bands of bandwidth greater than 500 MHz and power limit less than -41.3 dBm/MHz announced by FCC for Ultra wide band. The release of this Spectrum has rapidly increased the research in UWB technology for communications, radar imaging, and localization applications . Radio systems based on UWB technology offer opportunities for tra ....etc

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An antenna is defined by Oxford Dictionary as “ a usually metallic device for radiating or receiving radio waves “. The IEEE Standard Definitions of terms for Antennas ( IEEE Std 145-1973) defines the antenna or aerial as “ a means for radiating or receiving radio waves ”. In other words the antenna is the transitional structure between free-space and a guiding device. The guiding device or transmission line may take the form of a coaxial line or a hollow pipe (wave guide) and it is used to transport electromagnetic energy from the tr ....etc

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Dielectric Resonator
1.Introduction
A dielectric is an electrical insulator that can be polarized by an applied electric field. When a dielectric is placed in an electric field, electric charges do not flow through the material, as in a conductor, but only slightly shift from their average equilibrium positions causing dielectric polarization. Because of dielectric polarization, positive charges are displaced toward the field and negative charges shift in the opposite direction. This creates an internal electric field which redu ....etc

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I AM MISS NIBEDITA DOING ENGINEERING WANT TO KNOW ABOUT THE TOPIC DIELECTRIC RESONANT ANTENNA. I WANT THE ABSTRACT AND FULL REPORT FOR SEMINAR.

THANKING YOU
NIBEDITA ....etc

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sir,i want ppt of cylindrical high performance resonating antenna ....etc

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Resonator
A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonance frequencies, with greater amplitude than at others
It oscillates at specific frequencies because its dimensions are an integral multiple of the wavelength or half-wavelength at those frequencies
Resonators are used to either generate waves of specific frequencies or to select specific frequencies from a signal
In physics and engineering the quality ....etc

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Hello.
How to calculate cylindrical parameters by theory purpose?
In short give me idea on cylindrical DRA design steps. ....etc

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hi Iam abuidrees.I need data about this project. please quickly ....etc

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