In telecommunication, antenna noise temperature is the temperature of a hypothetical resistor at the input of an ideal noise-free receiver that would generate the same outputnoise power per unit bandwidth as that at the antenna output at a specified frequency. BlackBerry 7100t Telecommunication is the extension of communication over a distance. ... Information processing In information processing, input is the process of receiving information from an object. ... In general usage, noise can be considered data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by-product of other activities. ... Information processing In information processing, output is the process of transmitting information (verb usage). ... In telecommunication, the term noise power has the following meanings: 1. ... // Analog For analog signals, bandwidth is the width, usually measured in hertz, of a frequency band f2 − f1. ... Aerial redirects here. ... Sine waves of various frequencies; the lower waves have higher frequencies than those above. ...
Note 1: The antenna noise temperature depends on antenna coupling to all noise sources in its environment as well as on noise generated within the antenna. Noise temperature: At a pair of terminals, the temperature of a passive system having an available noise power per unit bandwidth at a specified frequency equal to that of the actual terminals of a network. ... Generally, coupling means a mechanical connection between two things. ...
Note 2: The antenna noise temperature is a measure of noise whose value is equal to the actual temperature of a passive device.
In telecommunication, antennanoisetemperature is the temperature of a hypothetical resistor at the input of an ideal noise-free receiver that would generate the same outputnoise power per unit bandwidth as that at the antennaoutput at a specified frequency.
Note 1: The antennanoisetemperature depends on antennacoupling to all noise sources in its environment as well as on noise generated within the antenna.
Note 2: The antennanoisetemperature is a measure of noise whose value is equal to the actual temperature of a passive device.
The gain of an antenna is the ratio of the power radiated (or received) per unit solid angle by the antenna in a given direction to the power radiated (or received) per unit solid angle by an isotropic antenna fed with the same power.
The noise figure is the ratio of the noise power at the output of a device to the noise power at the input to the device, where the inputnoisetemperature is equal to the reference temperature (290 K).
It is a measure of the noise power generated by a practical device, expressed as the equivalent temperature of a resistor which, when placed at the input of a perfect noise-free device, generates the same amount of outputnoise.
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