There is no formula to calculate the length of a wire. The length of a wire is determined by the distance from the power source to where the load is situated.
Power = Work/Time Time = Work/Power Work = Power * Time See related links for a power calculator. Insert work and time to calculate power.
Output equals efficiency times input; in formula, Ot = Ef x In and so In = Ot/Ef. To calculate the original input, divide the output by the efficiency.
To be able to calculate a mi to the second power you need to
it is the integral of the normalised power pattern over sphere (4pie.st)
EIRP (Dbm)= Output Power(Dbm)-Losses(from cables & adapters)+Antenna Gain(Db)
The power radiation pattern represents how the radiated power from an antenna is distributed in space. It shows the strength of the radiated power in different directions relative to the antenna. This pattern helps to understand how an antenna radiates energy and is important in designing and evaluating antenna performance.
EIRP= Power of transmitter(dbw) + Antenna Gain (dBi) - (Feeder Loss + Combiner Loss) Feeder Loss depends on operating frequency, type of feeder (coax, waveguide, ladder-line, etc.), and nominal frequency for which the feeder is designed.
40 watts
radiation intensity In a particular direction average radiated power
bandwidth refers to the amount of the frequency spectrum that a signal resides in.example, the spacing between channels on radio are determined by their bandwidth. beamwidth is a physical characteristic of an antenna. they generally mark the point bore sight of a directional antenna that are at -3dB or half power
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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P=ir2
Antenna gain is determined by factors such as antenna size, shape, design, and directivity. The physical properties of the antenna, its operating frequency, and the surrounding environment also play a role in determining its gain. Additionally, the efficiency of the antenna and any losses incurred during transmission or reception impact the overall gain.
One form of energy can be radiated is Solar power
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