1. Leaky Feeder Cable A distributed antenna solution for WiFi
Steve Mace
Solwise Ltd

2. Introduction Leaky Feeder Cable Tests and application What is it?
WiFi and walls
Shadows
Leaky Feeder Cable
What is it?
Construction
Tests and application

3. Doesn’t go through walls

4. Creates Shadows

5. Distributed Antenna

6. Cable Construction Polyethylene Jacket Copper foil outer conductor
Foamed PE dialectric
Hollow copper inner conductor
Loss 0.16dB/m

7. Connectors

8. Slots in the Shielding Slots set at wavelength multiple
75-500MHz
MHz
MHz
Terminator for reflections

9. Physical Characteristics

10. Test Results Gain typically -11 +1dBi
Coupling Loss quoted at typically 60dB at 2.4 GHz.
This is the ratio of signal power going into the cable over the power of the received signal at 2m.
So if you have 20dBm going in then the signal at 2m would be about -40dBm
Compared to ‘normal’ 2dBi rubber duck which, at 2m with a 20dBm signal power would be -24dBm.

11. Installation Discussion
Make sure cable is orientated correctly and at least 4 inches from the wall
AP with single run
c. 50m
Drop of 8dBm
AP driving two runs c. 100m
Boosters
Careful with maximum input