Parabolic Antennas for 2 4GHz part 1

In this video I take a look at parabolic antennas for the 2.5GHz. What is and what is not a parabola and modify the proven design of the windsurfer into a powerful directional antenna.
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An interesting paper by Paul Wade on dish antennas: https://drive.google.com/file/d/0BzmJ...
Link to the parabolic design calculator: http://mscir.tripod.com/parabola/
Link to the windsurfer template: https://drive.google.com/file/d/0BzmJ... or http://www.aegisarts.com/wifi/ez12.pdf
Link to the element template: https://drive.google.com/file/d/0BzmJ...