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The Finite Dipole Antenna - small, half-wavelength and larger

One of the most widely used antennas in telecommunication is the dipole antenna. In this problem, we investigate the radiation properties of such an antenna.

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The Infinitesimal Dipole - Radiation Pattern, Directivity and all that

Published in Electrodynamics / Full Electrodynamics / Radiation and Antennas
Tags: Far Field / Directivity / Poynting Vector / Dipole / Helmholtz equation / Radiation pattern

In this problem we first investigate the radiation properties of a very short and thin filament of current.

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Radiation of Two Dipole Antennas

Published in Electrodynamics / Full Electrodynamics / Radiation and Antennas
Tags: Directivity / Poynting Vector / Dipole / Superposition Principle

The simplest form of an antenna array are two short dipole antennas. In this problem you will learn how a phase difference between the currents of both antennas affects their combined radiation pattern.

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The Directivity of a Parabolic Reflector

Published in Electrodynamics / Full Electrodynamics / Radiation and Antennas
Tags: Directivity / Airy Disk / Dipole

The directivity of a parabolic reflector is calculated in the Fraunhofer approximation.

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