Couplers | What is an Antenna Coupler?

What is an Antenna Coupler?

Date Updated : 11/8/2013 7:51:29 AM

An antenna coupler is a device that makes it possible for just one or two antennas to do the electrical work of many as opposed to the use of a separate antenna for each individual wavelength. Every signal would require an individual ideal antenna that is perfectly suited to measure and resonate to its frequency. However, realistically, there are hundreds of wavelengths going around. It becomes impractical to equip a building with so many antennae for the use of resonating the hundreds of wavelengths. Thus, technicians change their electrical lengths instead of their actual physical length.

 

Antennas are electrical devices that convert electrical power into radio waves and vice versa. It is typically used with a radio transmitter or a radio receiver. During the transmission, a radio transmitter supplies an oscillating radio frequency electric current to the antenna’s terminals. The antenna will then radiate the energy received from the currents as electromagnetic waves also known as radio waves. An antenna intercepts some of the power of the electromagnetic wave in order to produce a small voltage at its terminals that is applied to the received in order to be amplified in a reception.

 

Antennas are essential components in most appliances that use the radio function. They are used in systems such as the two way communications receivers, cell phones, radar, satellite communication, radio broadcasting, broadcast televisions and etc. On top of that, there are other devices that utilize antennas such as the wireless microphones, RFID tags on merchandises, garage door openers, wireless computer networks, baby monitors and bluetooh enabled devices.

 

Antenna tuning refers to the process of changing an antenna’s electronic abilities. It involves changing the electrical length of the antenna as well as its compatibility with the various types of transmitters and receivers. In order to tune an antenna, technicians will utilize antenna couplers, multi-couplers as well as tuners.

 

Antenna tuners and couplers both perform the same function that is an essential part of the process. Each antenna coupler is able to match one antenna to one transmitter or receiver at the same time. Larger jobs are typically more suitable to a multi-coupler which suggests can simultaneously match several antennas to their respective transmitters and receivers just based on its name.

 

As years past, there are many types of antenna couplers being developed. In different cases, an automatic coupler system is being installed. This means that the device can sense whenever the antennae needed tuning and will eventually perform the function by itself. It also has the ability to adapt to become compatible with a variety of transmitters in order for no technicians to be necessary. However, an automatic antenna coupler usually has a manual override function so that whenever the equipment malfunctions, a technician can be called in to fix the problem immediately.

 

In order to avoid any possible interference, the antennae systems are usually turned down to the lowest signal strength during the tuning process. The general standards are that an antenna’s signal should be tuned at below 250 watts during the tuning process. This is especially true for antennae that are being used for high frequency reception systems.

 

In present time, one of the most common uses for an antenna coupler would be when a homeowner wants to integrate two or more antennae as part of their TV’s reception system. This way, they can combine or even stack their antennas rather than having to pay for a whole new set of receptors to be fixed. The TV antenna coupler also matches the two antennae to one another by changing their electrical abilities until they are deemed compatible. Antenna couplers are typically sold and found at most television or radio stores. Sometimes, they can also be found in hardware stores that feature a section for electronics.

 



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