#Movie splitter combiner how to#

The arrangement is simple and it works, with limitations. If the “T” is mechanically symmetrical, a signal applied to the input will be divided into two output signals, equal in amplitude and phase. The most basic form of a power splitter is a simple “T” connection, which has one input and two outputs as shown in Figure 2. Figure 2: Basic 2-way 0° power splitter, simple “T”. Provide a capability to obtain RF logic arrangements.Combine signals from different sources to obtain a single port output.Split an input signal into multi-outputs.Obtain multi in-phase output signals proportional to the level of a common input signal.The following signal processing functions can be accomplished by power splitter/combiners: When used as a power combiner, both inputs are applied to ports A and B and the sum taken from port S. Figure 1: When used as a 0° power splitter, the input is applied to port S and equal outputs appear at ports A and B. And, if port S is terminated by a matched impedance (for maximum power transfer) then the isolation between ports A and B would be infinite. For example, in the 2-way 0° power splitter/combiner of Figure 1 if port S is open then the isolation between ports A and B would be 6 dB. The amount of isolation will depend upon the impedance termination at the combiner output or sum port. The power combiner will also exhibit isolation between the input ports. And, if the two signals are at different frequencies, the insertion loss will equal the theoretical insertion loss shown above. However, if the signals are 180° out-of-phase the insertion loss is infinite. For example, in a 2 way 0° power splitter/combiner (Figure 1), if the two input signals are equal in amplitude and are in-phase then the insertion loss is zero. The power combiner will exhibit an insertion loss that varies depending upon the phase and amplitude relationship of the signals being combined. The vector sum of the signals will appear as a single output at the splitter input port.

Since the 0° power splitter is a reciprocal passive device it may be used as a power combiner simply by applying each signal singularly into each of the splitter output ports.

High isolation between each output signal.

0° phase relationship between any two output signals.

The output signals theoretically possess the following characteristics:

#Movie splitter combiner how to#

How they work, what parameters are critical, and how to select the best value for your application.īasically, a 0° splitter is a passive device which accepts an input signal and delivers multiple output signals with specific phase and amplitude characteristics.