A fundamental list of antenna theory concepts, an antenna basics menu is given here. Topics include directivity, polarization, bandwidth, impedance, frequency bands, all things necessary for an understanding of antenna theory, antenna basics and antenna fundamentals.

Before we can design an antenna or discuss antenna types, we must understand the basics of antennas, which are the fundamental parameters that characterize an antenna. So let us learn something. We'll start with frequency and step through radiation patterns, directivity and gain, and ultimately close with an explanation on why antennas radiate.

A transmitting antenna transforms electric currents into radio waves and a receiving antenna transforms an electromagnetic field back into electric current. There are several basic properties that are common to all antennas: Reciprocity: an antenna‘s electrical characteristics are the same whether it is used for transmitting or receiving.

2016年8月24日 · Antennas allow us to transmit and receive information through influencing and being influenced by the electromagnetic fields that permeate the universe. The next article will explain different types of antennas and how they allow information to travel over large distances.

An intuitive tutorial of antennas and antenna theory. This website is designed to present a comprehensive overview of antennas, from design, to measurement and theory. Unnecessarily complicated math is avoided throughout.

In radio engineering, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.

• Review of basic antenna types • Radiation pattern, gain, polarization • Equivalent circuit & radiation efficiency • Smart antennas • Some theory • Summary

In this lesson, you will learn about the theory of antennas, to include the principles of antenna radiation, the characteristics of antennas, and the formulas used in antenna design. Explain basic antenna theory. Given this lesson. subcourse examination. The material in this lesson was derived from FM 11-64 and FM 24-18.

In this chapter, you are going to learn the basic concepts of antenna, specifications and different types of antennas. In the field of communication systems, whenever the need for wireless communication arises, there occurs the necessity of an antenna.

Antenna characteristics of gain, beamwidth, efficiency, polarization, and impedance are independent of the antenna’s use for either transmitting or receiving. The properties we will discuss here apply to both cases. Usually, the pattern describes the normalized field (power) values with respect to the maximum value.