DC to 12-GHz Photoreceivers
Appendix II: Microwave Connectors • 17
Appendix II: Microwave Connectors
The performance you obtain from these three models
of photoreceivers depends largely on the instruments
you use to measure their outputs and how the
connections are made to the instruments.
Connect the male connector of the photoreceiver
directly to the female connector of the instrument.
If you need to use an adapter, make sure it is designed
for your frequency range of interest. The following
table lists a few connectors and the frequency ranges in
which they may be used. For more information,
request Application Note 1. If you use an intervening
coaxial cable, select a cable with sufficiently low loss in
the frequency range of interest.
Connector
Frequency Range
Compatibility
BNC
DC–2 GHz
——
SMA
DC–18 GHz
Wiltron K, 3.5 mm
3.5 mm
DC–34 GHz
SMA, Wiltron K
Wiltron K
DC–40 GHz
SMA, 3.5 mm
2.4 mm
DC–55 GHz
Wiltron V
Wiltron V
DC–65 GHz
2.4 mm
New Focus also offers the following adapters:
Model 1225 Male-SMA to Female-BNC
Model 1226 Female-SMA to Male-BNC
Model 1227 40-GHz Flex Cable, Female-K to Male-K
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