http://www.bryony.net/training-white-fm1.html
Anything that conducts electricity is an antenna, (usually a wire, but it could be your body) but the basic unit from which we build antennas is a wire, 1/2 wave length long having a connection in the middle to equipment. Called a dipole, it is an efficient radiator of alternating current electrical energy and is a standard of reference for other antennas.
http://www.kyes.com/antenna/dipole.html
Metal garage doors may be solid and secure, but they are not transparent to radio waves. If your garage has aluminum siding, you may experience frustration with the operation of your garage-door opener.
http://www.edn.com/archives/1998/021698/04di.htm#Antenna extension
Lots of useful information about many tubes.
http://www.pollak.sulinet.hu/www/radio.html#tube
can be used for e.g. high speed packet radio (S5-PSK, 1.288 Mbit/s), 2.4 GHz wavelans, and, amateur satellite (AO40). Developments in wavelan equipment result in easy possibilities for high speed wireless internet access using the 802.11b (aka WiFi) standard.
http://helix.remco.tk/
Considering buying a new antenna for your wireless network? Read this article before you open your wallet.A six to eight inch reflector made from aluminum wire mesh can increase the range to a lot. You can also see increased privacy.
http://www.freeantennas.com/projects/template/
Design this high performance sector antenna that you find very similar to what is available from commercial manufacturers.
http://thekrome.blogspot.com/2005/11/homebrew-24-ghz-14dbi-wide-angle.html
http://electronics.howstuffworks.com/question490.htm
A ground plane antenna is a very simple antenna. It is a quarter wave vertical radiator and four radials that simulate a ground for the radiator. It directly matches to 50 ohm coax and should show a VSWR of 1.5:1 or better at its center frequency.
http://www.northcountryradio.com/Articles/groundplane.htm
Information on dipole and GP transmitting antennas for FM Transmeter
http://www.pcs-electronics.com/en/guide.php?sub=antennas