802.11 2.4Ghz Low-Power 5dBi Vertical Collinear Antenna
Next, take the 11/32 decoupler tubing and insert the SMA connector with the feedline now soldered to it, feedline first. Leave a
very small amount of the round SMA connector base exposed for soldering to the brass tube as illustrated in Figure 6. You may
notice that the feedline is not exactly centered in the middle of the decoupling tube. Do not try to center the feedline by bending.
the feedline.You WILL break the center conductor off of the SMA connector. Instead, remove the feedline tube by applying
heat to the base of the feedline tube. Once the solder is molten, press down lightly until you feel the feedline resting flat on the
surface of the SMA connector. Remove the heat, and wait for the joint to cool and solidify before removing your hand.
Figure 6: Decoupling sleeve over SMA connector. Note minimal spacing between SMA base and edge of decoupler sleeve.
Solder the decoupler onto the base of the SMA connector by applying a molten bead of solder along the edge and rotate the
feedline between the thumb and fore finger. Eventually you will have an evenly soldered joint. You have now completed the
decoupler assembly as depicted in figure 7.
Figure 7: Completed decoupler assembly.
Set aside the completed assembly and continue on to the next section.
(C) Aerialix 2002 (6 of 13)
