Leaky Feeder Cable A distributed antenna solution for WiFi Steve Mace Solwise Ltd www.solwise.co.uk sales@solwise.co.uk

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

Doesn’t go through walls

Creates Shadows

Distributed Antenna

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

Connectors

Slots in the Shielding Slots set at wavelength multiple 75-500MHz 800-1000MHz 1700-2600MHz Terminator for reflections

Physical Characteristics

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.

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