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Learn the basics of antennas, such as frequency, radiation pattern, directivity, gain, impedance, bandwidth, polarization and more. This web page covers the essential topics for understanding antenna theory and design, with graphs, examples and equations.
- Frequency
Antenna Basics List: Main Antenna Page: Frequency is one of...
- Radiation Pattern
A radiation pattern defines the variation of the power...
- Field Regions
Figure 1. The Rays from any Point on the Antenna are...
- Directivity
The directivity is calculated for Antenna 2 to be 2.707...
- Antenna Efficiency
Being a ratio, antenna efficiency is a number between 0 and...
- Antenna Gain
The gain of a real antenna can be as high as 40-50 dB for...
- Beamwidths and Sidelobes
In addition to directivity, the radiation patterns of...
- Impedance
Antenna impedance relates the voltage to the current at the...
- Frequency
28 lut 2020 · Learn how antennas interact with radio waves and function in various electronic systems. Explore the basic characteristics, types, and applications of antennas in this comprehensive guide.
An Antenna is a transducer, which converts electrical power into electromagnetic waves and vice versa. An Antenna can be used either as a transmitting antenna or a receiving antenna. A transmitting antenna is one, which converts electrical signals into electromagnetic waves and radiates them.
This is a professional level, introductory text on antenna principles, design, analysis, and measurements. It is especially suitable for persons who wish to improve their knowledge of antenna princ...
The Basics. Ward Silver NØAX. Antennas radiate (or receive) because electrons are accelerated (or are caused to accelerate) in the antenna’s elements. Radio or electromagnetic waves are both an E- (electric) and H- (magnetic) field. Electrons move parallel to E-fields. Strongest radiation from accelerating electrons linearly (back and forth)
This tutorial provides a comprehensive overview of antenna basics, covering essential topics such as functions, types, working principles, terminologies, near field vs far field, radiation pattern, applications, advantages and disadvantages.
Basic Antennas is a comprehensive introduction to antennas—basic concepts, practical designs, and details of easy-to-build antennas. You’ll learn how to make antennas that really work! This book will provide a foundation in antenna theory and design necessary for anyone under-taking more advanced topics.
