The Different Productions Of Military Antenna Manufacturers
by Carolyn Hughes
An antenna is one electrical device that will do the converting of electrical powers into radio wave and also vice versa. This is often utilized with a radio receiver or radio transmitter. An antenna is one essential component for radio equipment. This is usually being used for communication receivers, radio broadcasting, radar, satellite communication, broadcast television, cell phones, and two way radios. Other devices are also using this such as the wireless computer networks, garage door openers, baby monitors, wireless microphones, RFID tags, and Bluetooth devices.
One type of this which is being used by the military is mono pole. This is consist of only one conductor like the metal rod which is mounted on the ground or in an artificial surface for conduction. An umbrella is one type of a mono pole which is used for military communications in long range. The production of these by <a href="http://www.hascall-denke.com">military antenna manufacturers</a> can be very useful for them.
An umbrella is a type which is a large wire that will transmit the antenna being used for the VLF band. It consists of mast radiator tower attached to its top with multiple wires which are extending in mast to ground, like tents and umbrellas. It is insulated in the ends. It also contains narrow bandwidth and requires counterpoise ground in low resistance and large loading coils.
Another type is array and its type that is utilized for military purposes, specifically for radar system and jamming system is the phased array. This is a higher gain antenna utilized for UHF and also for microwave frequencies that is steered electronically. It is consist of several dipoles in two dimensional arrays. Each dipole is fed through electric phase shifters that are being controlled by computer control systems.
One old type of antennas is a radio kite. This is utilized in carrying radios to an aloft, which is higher than a practical mast. Usually, the kite is associated with portable systems for radios and for an increased range of radio in the naval ships. Using this type has limitations because of difficulties for maintaining its height, the wind is unpredictable, and improvements for reception, antenna, and transmission.
When installing an antenna, it is important to consider its effects on the ground. Factors to consider are height, electrical properties, permittivity, and the conductivity. Particularly, in mono pole antennas, grounds serve as a return connection of the current and this is the reason for the effects.
For the low frequencies to high frequencies, the grounds behave as the lossy dialectrics. And thus, these will be characterized by the permittivity and conductivity. For a lower frequency, it acts as good conductor.
If the frequency is between 3 to 30 megahertz, a very large portion of energy from the horizontally polarized antennas will reflect on it. While the vertically polarized one will not be well reflected except for the grazing incidence. However, the reflection of grazing angles is in phase with direct waves.
A net quality of a reflection is dependent to surface topography. If irregularities of a surface which are smaller than the wavelength, specular reflection is there. But if these are not big, the reflection is shifted by a random phase.
Get a review of important factors to consider when choosing <a href="http://www.hascall-denke.com">military antenna manufacturers</a> and more information about a reliable manufacturer at http://www.hascall-denke.com today.
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New Unique Article!
Title: The Different Productions Of Military Antenna Manufacturers
Author: Carolyn Hughes
Email: nathanwebster335@live.com
Keywords: military antenna manufacturers
Word Count: 537
Category: Recreation & Sports
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