Feed Line

What is a Feed Line?

Definition and meaning of Feed Line

A feed line is a cable that feeds radio alerts from a radio Antenna to a Transmitter or Receiver. It connects the antenna to the receiver, transmitter or Transceiver and is extensively utilized in Wireless Communications and Broadcasting antenna sySTEMs. It transfers the Radio Frequency energy between the antenna and the receiver. When operated well, it does no longer radiate any power.

Feed strains also are called as RF transmission traces.

What Does Feed Line Mean?

Feed traces are specialised cables that connect an antenna to a transmitter or receiver of a radio or wi-fi verbal excHange system.

The maximum widely used kinds of feed traces are:

• Coaxial Cable – This includes four Components: the center conductive cord, plastic insulation across the twine, copper defensive across the insulation and a tough outer coating.
• Twin-lead – This is a wire encased in plastic and is demarcated at a uniForm distance throughout the line.
• Ladder line – This is also known as the parallel conductor feed line and includes two conductors separated with the aid of insulating rods.
• Waveguide – This is used at microwave frequencies.

Feed traces convey the radio frequency Voltage from one stop to the other and for this reason they're made from specialised cables. Each feed line has its own feature Impedance which should be matched with that of the antenna to transfer the RF strength efficiently. If the impedance is not matched, the RF electricity is meditated again to the transmitter, causing electricity wastage and overheating of the transmitter. A Device referred to as an antenna tuner is used to Make the essential adjustments for green transfer of strength.

Some factors to consider while the use of feed strains are:

• When the frequency increases, the aMount of sign loss also increases.
• Signal loss is likewise high for longer feed lines as signal Resistance will increase with the period of the feed line.

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