An antenna (plural antennae or antennas), or aerial, is an electrical device which converts electric power into radio waves, and vice versa.It is usually used with a radio transmitter or radio receiver. In transmission, a radio transmitter supplies an electric current oscillating at radio frequency (i.e. a high frequency alternating current (AC)) to the antenna's terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves). In reception, an antenna intercepts some of the power of an electromagnetic wave ....etc

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7EC1- ANTENNA & WAVE PROPAGATION



UNIT 1 : ANTENNA FUNDAMENTALS
- Antenna parameters, Radiation from a current element in free
space. Quarter & half wave antenna. Reciprocity theorem. Resonant and non-resonant antenna. Effective
length and aperature, gain, beamwidth, directivity, radiation resistance, efficiency, polarization,
impedance and directional characteristics of antenna, antenna temperature.
.
UNIT 3 : ANTENNAS -
V and Rhombic antennas, Folded dipole, Yagi-Uda ....etc

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electromagnetic theory and transmission lines by bakshi pdf free download

Abstract

Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature. The other three fundamental interactions are the strong interaction, the weak interaction ....etc

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transmission lines and waveguides by bakshi pdf free download

Transmission Lines and Waveguides
Given a particular conductor geometry for a transmission line or waveguide, only certain patterns of electric and magnetic fields (modes) can exist for propagating waves. These modes must be solutions to the governing ifferential equation (wave equation) while satisfying the appropriate boundary conditions for the fields.

Transmission lines and waveguides may be defined as devices used to guide energy from one point to another (from a source to a ....etc

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A COMPARATIVE STUDY OF CONVENTIONAL AND METAMATERIAL-BASED
PLANAR LEAKY-WAVE ANTENNAS FOR DIRECTIVE RADIATION AT BROADSIDE

(2) La Sapienza University of Rome, Electronic Engineering Dept. - Via Eudossiana 18, 00184 Roma, Italy.

(3) University of Siena, Information Engineering Dept. Via Roma 56, 53100 Siena, Italy.

(4) University of Houston, Electronic and Computer Engineering Dept. - Houston, Texas, 77204-4005 USA.

Abstract:

In this work, one-dimensional and two-dimensional leaky-wave antennas ba ....etc

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transmission and distribution bakshi book in free download pdf

Electric power transmission is the bulk transfer of electrical energy, from generating power plants to electrical substations located near demand centers. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. Transmission lines, when interconnected with each other, become transmission networks. The combined transmission and distribution network is known as the power grid in North Ameri ....etc

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