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Gain in antenna propagation refers to the measure of the directionality and efficiency of an antenna in transmitting or receiving electromagnetic waves. It represents the ability of the antenna to focus its radiated power in a specific direction, usually compared to an isotropic radiator. A higher gain indicates a more focused radiation pattern and improved performance in that direction.
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How Radar range related to Antenna gain?
Radar range is affected by various factors, including the transmitted power, beamwidth, frequency, propagation losses, and antenna gain. Antenna gain plays a crucial role in determining the effective range of a radar system, as it focuses the transmitted energy in a particular direction, increasing the signal strength in that direction and consequently extending the radar range. A higher antenna gain typically results in a longer radar range by improving the system's ability to detect and track targets at greater distances.
Explain the current distribution thin wire anteena wire in detail?
A thin wire antenna, such as a dipole or monopole, is a simple and efficient antenna design that is often used for receiving or transmitting radio signals. The current distribution on a thin wire antenna is non-uniform and varies along the length of the wire. At the center (feedpoint) of the antenna, the current is typically at its maximum, decreasing towards the ends. This current distribution creates a radiation pattern that determines the directionality and gain of the antenna.
What is the equation linking power of a radio telescope and the diameter of its dish?
For any parabolic antenna used to focus radio waves, the following formula is pretty good. GdB = 20 log( F D ) + 7.5 G = the gain of the antenna in dB, compared to an isotropic antenna F = the frequency, in GHz, at which the gain is 'G' D = the diameter of the parabola, in feet The formula assumes that the antenna's efficiency is 50% . If this bothers you and you want to assume 100% efficiency, simply change the ' 7.5 ' to ' 10.5 '. The formula shows that if the diameter of the antenna is doubled, or if the frequency of interest is doubled, then the antenna has four times as much gain ( + 6 dB ).
What does the term artificial propagation mean?
Propagation carried out by man and not naturally.
If the diameter of an objective mirror is doubled its light-gathering power becomes?
Just like any antenna used to collect electromagnetic energy at any other frequency, the 'gain' is proportional to the antenna's area. Since the area varies as the square of the collector's diameter, doubling the diameter increases the gain by a factor of 22 = 4. The corresponding increase in gain is 6 dB.
What is a list of the parameters that control the design of earth station?
The earth station depends on the following parameters• Transmitter power• Choice of frequency• Gain of antenna• Antenna efficiency• Antenna pointing accuracy• Noise temperature• Local conditions such as wind, weather etc,• Polarization• Propagation losses
How Radar range related to Antenna gain?
Radar range is affected by various factors, including the transmitted power, beamwidth, frequency, propagation losses, and antenna gain. Antenna gain plays a crucial role in determining the effective range of a radar system, as it focuses the transmitted energy in a particular direction, increasing the signal strength in that direction and consequently extending the radar range. A higher antenna gain typically results in a longer radar range by improving the system's ability to detect and track targets at greater distances.
What is unity gain antenna?
an antenna with 0 gain. What you hear and transmit is what you get from your 2-way radio.
What factors determine antenna gain?
It depends upon the type of antenna. For example, a Yagi antenna's gain can be increased by adding elements. A parabolic antenna's gain can be increased by increasing the diameter of the antenna. All antennas can have their gain increased by lowering the loss of the feed line. By replacing regular coaxial cable with nitrogen pressurized coax, the overall gain at the receiving end can be increased. Gain can also be increased by inserting an amplifier between the antenna and the receiver. Another method of increasing gain is to reduce the VSWR, or voltage standing wave ratio.
When antenna diameter is doubled what will happen to antenna gain?
increases by 6 dB
The of an antenna depends upon the frequency of the RF signal and the gain?
The size of an antenna depends upon the frequecny of the RF signal and the gain.
What is the effective radiated power formula?
EIRP (Dbm)= Output Power(Dbm)-Losses(from cables & adapters)+Antenna Gain(Db)
What is microstrip patch array antenna?
microstip patch array antenna is basically ,thecollection of antenna that give the double directive gain
If antenna is passive than how can it add gain?
Antennas provide so called passive gain, which means it comes from particular shape of the antennaThe gain of an antenna is a passive phenomenon - power is not added by the antenna, but simply redistributed to provide more radiated power in a certain direction than would be transmitted by an isotropic antenna. If an antenna has a gain greater than one in some directions, it must have a gain less than one in other directions, since energy is conserved by the antenna.SOURCE: wikipedia.com
Where can I go to get the latest high gain antenna around?
http://www.amazon.com/Cisco-Linksys-High-Antenna-Connectors-HGA7T/dp/B0002F3G7M is a great place to get the latest high gain antenna with great prices.
What is the Off-axis gain of cassegrain antenna?
The off-axis gain of a Cassegrain antenna refers to the antenna's ability to receive or transmit signals effectively when the signal source is not aligned with the main axis of the antenna. This gain is typically lower than the maximum gain achieved when the source is directly in line with the antenna's focus. The design of the Cassegrain antenna, which includes a parabolic reflector and a secondary hyperbolic reflector, helps maintain reasonable performance off-axis, but the gain will vary based on the angle and distance from the boresight. Off-axis gain is an important consideration in applications like satellite communication, where signals may come from various directions.
What is antenna tilt?
Antenna gain of base station for a specific user depends on antenna pattern, antenna orientation (azimuth and tilt) and user's coordinates with respect to base station.
