dipole and foot
without cover
back
| Wlan antenna pages |
Wlan antenna comparison |
| Marska's Do-It-Yourself
wlan 2.4 GHz antennas |
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| #1A. Antenna 1 | Antenna1: reflector from
aluminium pan 240 mm dia, sides cutted to 32 mm height. The ring is 64
mm from the base. |
| #1B. Antenna 1 |
Antenna 1: same as above,
but sides of the pan has left to original 55 mm height. No ring is used.
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| #2B. Antenna 2 |
Antenna 2: "improved"
or coffe can 105 mm dia with extra bottom. |
| #2C. Antenna 2 |
Antenna2: "funnel", tube100
mm dia, funnel overall dia 170 mm. |
| #3. Helix-antenna
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Helical antenna: 42 mm
plastic tube 560 mm length. 1 mm enamelled wire, 14 turns, ascending 38
mm. Impedance converter from printed circuit copper foil cutted triangled. The flange 125 mm dia. |
| #2C Antenna2 + dish |
Antenna2 funnel type application
with a dish from Carlos Alloatti, Argentina |
CLICK IMAGE TO ENLARGE IT |
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| Antenna #1 dipole and foot |
Antenna #1B without cover |
Antenna #1B back |
Antenna #1B |
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| Antenna #1A mounted
on chimney of my house. Distance to the ISP station is 750 metres, no direct sight. (Distance to the phone link mast far left is 300 metres) |
Antenna #1A Been outdoors over 7 months
Not any problems. Rain or snow, no worry. Cable connection is protected with black hose against
uv-light.
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| Antenna #2B Coffee can |
Antenna #2B |
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| Antenna #2C Funnel |
Antenna #2C |
Antenna #2C |
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| #3 Helix antenna without
cover tube |
#3 Helix antenna back |
#3 Helix antenna Impedance converter foil. Connection point coated with silicon rubber |
| 16. Jan. 2002 created
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| Martti Palomaki | 
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