I am wanting to build a few general pupose antennas for 802.11 and ham experimentation in the 2.4 ghz band. I was going to build a simple antenna out of a chassis rf connector, one radiator on each corner and a 1/4 verticle attached to the pin in the center of the connector. However I have seen cisco use an antenna in their fixed cofiguration 1100 ap that appears to be a 1/4 dipole with a ground " plate " if you will placed behind it. Anyone seen one of these? Its very small and has excellent coverage even at 1mw. I would really like to build something similar out of a chassis connector and some copper tube or wire. I can post pictures of the cisco unit if need be. Thanks
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