RF Splitters 101

May 26, 2016 at 8:00 AM

 

Radio Frequency (RF) splitters/combiners are commonly used in a variety of wireless communications applications. An RF splitter/combiner is a transmission component which divides or sums power between two or more ports. Typically, they are used for connecting more than one antenna to a single radio and can also be used to connect multiple radios to a single antenna using the same frequency.


Here is an example:

 

Because the splitter and combiner are in one single unit, the same circuits can be used to combine and split RF power. The only difference between the two functions is that in splitting-mode, RF power is applied to one port and split out to multiple antennas, and in combining-mode power is applied in the opposite direction.


The type of RF splitter you choose is largely dependent upon your application. Typically, most RF splitters are 2-way, 3-way or 4-way and can support a range of frequencies. Here at L-com, we offer RF splitters for 900 MHz, 2.4 GHz, and 3.5 GHz, 5.4 GHz and 5.8 GHz WLAN applications.  For DAS applications, we offer wideband 750 MHz to 2.4 GHz RF splitters/combiners. L-com’s RF splitters are weatherproof, so they can be used indoors or outdoors.

Depending on your application, an RF splitter/combiner may be the best way to get the most out of your wireless network. For more information, read our RF Filters/Splitters Tutorial.

 

How to Utilize an RF Splitter

February 6, 2014 at 10:00 AM

 

True or False: Will an RF splitter help connect more than one antenna to a single radio?

 

The answer is true. This question commonly comes up at our technical service department so we wanted to share the facts with you.

  

A Radio Frequency (RF) Splitter/Combiner is a transmission component which divides or sums power between two or more ports. Typically they are used for connecting more than one antenna to a single radio and can also be used to connect multiple radios to a single antenna using the same frequency.

 

Generally most RF splitter products are 2 way, 3 way, or 4 way, and can split a variety of RF signals. At L-com, we offer RF splitters for 900 MHz, 2.4 GHz, and 3.5 GHz, 5.4 GHz, and 5.8 GHz WLAN applications. Additionally, we offer wideband 750 MHz to 2.4 GHz RF splitter/RF combiners which are ideal for DAS applications.

 

RF splitters have weatherproof construction and can be installed indoors or outdoors. These flexible splitters can be used with amplified systems since they will pass DC power to all ports. Remember as always, the type of RF splitter you need would vary depending on your application.

 

The following are some examples of an RF splitter in action:

 

 

 

By using a 2-way splitter in an application that requires wireless coverage on two sides of a building, a single radio can be used to feed two separate antennas covering two sides of the building.

The corner mounting bracket used in this design example is available for purchase.

  

 

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