This is a low loss RF splitter-combiner from 500 kHz to 80
MHz. It can be used to split an antenna for two receivers or as a
splitter - combiner in measurement purpose etc. The enclosure is build by
soldering bare FR4 pieces together.
Splitter-Combiner
top view. Size 60 x 50 x 30mm
Splitter-Combiner bottom view
Ferrite transformers windings. Trifilar means 3 wires Twisted together. Bifilar means 2 wires Twisted together. You can find the start and end of each winding with an ohm meter (continuity beep mode). Refer to schenmatics for other connections.
Splitter-Combiner
top view. Size 60 x 50 x 30mm
Splitter-Combiner bottom view
Ferrite transformers windings. Trifilar means 3 wires Twisted together. Bifilar means 2 wires Twisted together. You can find the start and end of each winding with an ohm meter (continuity beep mode). Refer to schenmatics for other connections.
Measured performance
- Transmission loss from 500 kHz to 80 MHz is very near the theoretical 3dB
- Isolation better than 35dB
- Good 50 ohm matching on each port
This device can be used as a RF splitter or combiner in many applications up 30W RF power level.
Schematics with the parts information
Update 2024-06-05 OH7SV
Back to OH7SV projects
- Transmission loss from 500 kHz to 80 MHz is very near the theoretical 3dB
- Isolation better than 35dB
- Good 50 ohm matching on each port
This device can be used as a RF splitter or combiner in many applications up 30W RF power level.
Schematics with the parts information
Update 2024-06-05 OH7SV
Back to OH7SV projects