An RF Coaxial Switch is an electromechanical coaxial device typically containing anywhere between 3 ports (SPDT = Single-Pole, Double-Throw) and 9 ports (SP8T = Single-Pole, Eight-Throw). Other configurations are also available. The main application for these devices is to perform bench top testing or computer-automated testing for RF systems, either in a laboratory or in a factory. However, RF Coaxial Switches are also used within RF testing equipment (e.g., to switch between multiple RF inputs or multiple RF outputs on a signal generator) and in large RF communication systems and networks (e.g., to switch between a primary circuit and a back-up circuit).
Specific attributes which are important in selecting the right RF Coaxial Switch for your application include Configuration (SPDT, SP3T, SP8T, etc.); Switch Type (Failsafe, Normally Open, Latching, etc.); Maximum Frequency (GHz); Isolation (dB); Insertion Loss (dB); VSWR (ratio); and Package Type (this attribute mainly describes the type of coaxial connector used on the switch).
Richardson RFPD / Arrow RF & Power carries RF Coaxial Switches from manufacturers Radiall and Teledyne Coax.
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Additionally, some attributes allow for the conversion of their base type to different types. For example, the attribute group for minimum frequency is shown in MHz. The values can be converted to be shown in KHz or GHz by selecting the conversion type from the ‘Select Conversion’ drop down list.
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