wiki/ AntennaConstructionLV2

Constructing LV2's Cylindrical Patch Antennas

NOTE: THIS PAGE IS BEING HACKED TO BITS. FOR MORE CURRENT INFORMATION, PLEASE SEE THE Communications PAGE.

Construction Process #1: Duroid PCB

We're using Roger's Corp RT-Duroid 5880 0.031" thick 1oz electroplated PCB material (an 18" x 16.5" piece, nonetheless) for the antenna. A big thanks to Rogers for donating two sheets of it! Hooray, we're going to have an antenna.

Methods:

Construction Process #2: Roll your own air

These people - http://www.eccosorb.com/eccostock - make a foam in place polyurethane that is 2lb density and has a Er = 1.1. But it's (FPH: 1.3 lb - $62.42, Cat: 0.9 lb - $56.72) and all together is $155 to ship since it's a class B poison (joy).

Here's some more notes on polyurethane foam: From http://www.atnf.csiro.au/projects/ska/techdocs/Lens_Weight.pdf:

Interesting: variable dielectrics: http://wwwnew.towson.edu/mesrp/TheResearch2000.htm

What is the dielectric constant of "plumber's foam", a 2lb density polyurethane foam?

Construction Process #3: Use other people's rolled air.

We've finally found something that seems to work: double sticky Polyethylene foam tape.


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