Leaky Feeder Cable A distributed antenna solution for

Leaky Feeder Cable A distributed antenna solution for Wi. Fi Steve Mace Solwise Ltd www. solwise. co. uk sales@solwise. co. uk 1

• Introduction – Wi. Fi and walls – Shadows • Leaky Feeder Cable – What is it? – Construction • Tests and application 2

Doesn’t go through walls 3

Creates Shadows 4

Distributed Antenna 5

Cable Construction • Polyethylene Jacket • Copper foil outer conductor • Foamed PE dialectric • Hollow copper inner conductor • Loss 0. 16 d. B/m 6

Connectors 7

Slots in the Shielding • Slots set at wavelength multiple – 75 -500 MHz – 800 -1000 MHz – 1700 -2600 MHz • Terminator for reflections 8

Physical Characteristics 9

Test Results • Gain typically -11 +1 d. Bi • Coupling Loss quoted at typically 60 d. B at 2. 4 GHz. • This is the ratio of signal power going into the cable over the power of the received signal at 2 m. • So if you have 20 d. Bm going in the signal at 2 m would be about -40 d. Bm • Compared to ‘normal’ 2 d. Bi rubber duck which, at 2 m with a 20 d. Bm signal power would be -24 d. Bm. 10

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

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