RF Power splitters, resistive - 3R config
Power splitters using a three-resistor configuration vector add or split power signals. Because resistors are frequency-independent, these splitters are very broadband in nature, starting from DC and going well into the GHz range. The drawback of these splitters is that because of their resistive characteristics they add 3 dB of power loss to the power reduction of 3 dB caused by the power splitting itself.
Resistive power splitters are best used where power loss is not critical or where truly broad bandwidth is mandatory. They are typically found in the lab. Please notice that there are also power splitters using a two-resistor configuration. They work differently and are designed for only two specific applications.
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