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.
Antenna gain is the measure of the. directionality of an antenna. It is defined as the output power radiated in a particular direction compared to the power output in any direction by an isotropic omnidirectional antenna. The increase in power output in one particular direction is at the expense of power radiated in other directions. That is, power output can be increased in one direction by decreasing it in other directions.
Another concept related to the antenna gain is effective area. Effective area of an antenna is related to the physical size and shape of an antenna.
There are two factors that determine and object's kinetic energy. The two main factors are mass and velocity.
The two factors that determine a material's density (such as that of wood) are its mass and volume.
Speed and direction determine velocity
the two factors that determine an object's velocity is SPEED and DIRECTION.By: Arjane Lee Lagasca
One of the factors that determine force of impact is the object's mass. Another factor that will determine the force of impact is the object's velocity.
an antenna with 0 gain. What you hear and transmit is what you get from your 2-way radio.
That depends on a number of factors. Antenna height both receive and transmit. Transmitter power and antenna gain. About 15 miles max.
The actual numbers are not as important as the knowledge that generally speaking, the larger the antenna the more gain it will have. Three other main factors are the Distance from the transmitting antennas are from your location and the Height of your antenna above the ground and what Obstructions there might be between the two antennas.
The amplification factor Vout/Vin determines the voltage gain.
increases by 6 dB
The size of an antenna depends upon the frequecny of the RF signal and the gain.
EIRP (Dbm)= Output Power(Dbm)-Losses(from cables & adapters)+Antenna Gain(Db)
microstip patch array antenna is basically ,thecollection of antenna that give the double directive 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
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.
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.
A simplified explanation is that the antenna does for radio waves what a lens does for light because of physics.