Impedance Matching Transformer 5-2200 MHz | 57ZT-2.2G

Converting from 50 Ohm to 75 Ohm | Resistive VS Reactive

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Connecting 50 Ohm and 75 Ohm devices and equipment can be a hassle.  When building up a RF test bed sometimes this impedance mismatch between components and test equipment is unavoidable.  Here are two different types of impedance matching models that can resolve this hassle.

Impedance Matching Pads

Built using resistors matching pad models operate over a wide frequency range.  Due to their resistive design these models have higher insertion loss (-5.7dB nominal) than the reactive models.

  • Insertion loss of 5.7dB nominal
  • Wideband operation (DC-3GHz)
  • Mix & match RF connector types
  • 50 Ohm BNC, N, SMA, TNC
  • 75 Ohm BNC, F, N, TNC

Impedance Matching Transformers

The matching transformer models make the impedance change reactively which keeps their insertion loss very low (-1.0dB nominal).  The reactive design causes the units to have a limited bandwidth with upper and lower frequency of operation.  Using a model that closely matches your operating frequency will minimize the insertion loss.  If your setup has DC Voltage on the line with the RF signal, we can add a DC blocking capacitor inside the unit to prevent the DC Voltage from being affected.

  • Insertion loss of 1.0dB nominal
  • Limited bandwidth (5-2200MHz)
  • Mix & match RF connector types
  • 50 Ohm BNC, N, SMA, TNC
  • 75 Ohm BNC, F, N, TNC