Radio frequency (RF) refers to the oscillation rate of a variety of currents and systems. Among those are certain electric currents that oscillate within the RF range. These are called RF currents and they operate unlike other electric currents. They move differently through conductors and through the air, they react differently to the body, and they can radiate into space in the form of electromagnetic waves. Because of these unique properties, you will want to consider using different equipment for your devices powered by RF currents.
Unlike traditional electric currents, RF currents cannot easily transfer across turns or bends in wires. Traditional electric currents travel deep within the conducting wires. RF currents, on the other hand, sit on top of the conductor and travel along the surface. This allows RF to travel more easily through insulating materials that would trip up a traditional electric current. However, it means that turns or bends or even coils, which would pose no problem to traditional electrical currents, can stop RF currents right in their tracks.
When building a device that relies on RF currents, a combiner or coupler designed for standard electric currents simply won’t transfer the current properly. Using the wrong combiner can even cause backflow of the current. To get around this problem, use hybrid combiners that are designed for RF currents. These devices can split or combine RF signals and transfer them across ports without current degradation. Depending on your specific needs, you can choose 90-degree or 180-degree hybrid combiners.
Picking the right combiner for your needs can quite literally make or break your device. When dealing with radio frequency currents, be sure to get the right hybrid combiner to ensure that your device functions within specifications. Source a high-quality manufacturer for the parts and you’ll be sure to find little resistance.
