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What are RF switches used for?
A Radio Frequency (RF) switch is a device that routes high-frequency signals through transmission paths. They also support the integration of multiple radios that use a single antenna. The need for RF switch circuits is due to the increasing demand for wireless communications at higher frequencies and wider bandwidths.
What is double Plexer?
A diplexer is a passive device that implements frequency-domain multiplexing. Two ports (e.g., L and H) are multiplexed onto a third port (e.g., S). The signals on ports L and H occupy disjoint frequency bands. Consequently, the signals on L and H can coexist on port S without interfering with each other.
What do combiners and splitters do for RF?
RF combiners and dividers, also known as combiners and splitters, are multi-port devices and modules that combine or split RF signals between a single port and the other ports.
How is a 0° power splitter used?
When used as a 0° power splitter,the input is applied to port S and equal outputs appear at ports A and B. When used as a power combiner, both inputs are applied to ports A and B and the sum taken from port S. The following signal processing functions can be accomplished by power splitter/combiners: 1. Add or subtract signals vectorially.
What are quarter wave sections in a splitter combiner?
Quarter wave sections cause addition or cancellation of signals at ports. A Wilkinson power splitter/combiner is a passive three port device. Quarter wave sections from two ports sum signals constructively at a combining port but isolation due to a half wave length phase difference between splitter ports.
How does port isolation work in a splitter combiner?
Quarter wave sections from two ports sum signals constructively at a combining port but isolation due to a half wave length phase difference between splitter ports. A resistor placed between the splitter ports dissipates any reflected power caused by mismatch to provide port isolation.