The feed is sometimes a dipole antenna located along the focal line.

It can be used in very wide frequency range whose gain is higher than a dipole antenna.

It is physically short as compared to a dipole antenna for a given frequency.

There is a variety of other important dipole antennas.

The dipole antenna is made of two poles into which radio frequency current flows.

This would unfurl the largest simple dipole antenna humanity had ever made.

This leads to the gain of a dipole antenna, :

Portable dipole antennas are made from wire that can be rolled up when not in use.

A horizontal dipole antenna was suspended between the two masts.

Individual vertical dipole antennas are used for each frequency.

This often involves a number of parallel dipole antennas with a certain spacing.

The 75 ohm impedance matches a dipole antenna in free space.

A magnetic dipole antenna also protruded from the top of the upper cone.

The wellhead and the ground rod form the two electrodes of a dipole antenna.

Therefore the simplest way of feeding a folded dipole antenna is using a 300-ohm ladder line.

There was an APS-70 with its simple dipole antenna inside the envelope.

Like a dipole antenna, a monopole has an omnidirectional radiation pattern.

Obviously, the usual half-wavelength dipole antenna cannot be constructed, as it would spread across a large country.

A curtain array may have a gain of 20 dB greater than a simple dipole antenna.

A use for this is the combination of a symmetric dipole antenna with a coaxial line.

Both the vertical and dipole antennas are simple in construction and relatively inexpensive.

Twin-lead also can serve as a convenient material with which to build a simple folded dipole antenna.

Ground commands were received through the electric dipole antenna at 115 MHz.

From a theoretical point of view, the dipole antenna is the simplest antenna type.

By 11 pm that same night, the broadcast signal was back on the air thru the use of a horizontal dipole antenna.