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Is patch antenna for sale anywhere?

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Commercially made patch antennas for 1.2Ghz are not readily available. The "legal" areas of that spectrum are in the amateur radio band, and so a ham would not think twice about making one on their own.

Commercially produced Patch antennas for 2.4Ghz are common. These are nearly always based on a PCB dielectric. The PCB's lower efficiency is one of the reasons the GP Patch project does not use that construction method.

Here are some example links of commercial Patch antennas (just google to find more):

http://www.blackwidowav.com/productaccessories.html

http://www.hyperlinktech.com/web/antennas_...directional.php

http://www.ydi.com/products/antenna24/a24p...2d269be815ead5f

You can spend $40 to $200 for a commercial product. Or you can spend $10 and build your own in about one hour. If your time is valuable then spend the extra $$, otherwise warm up the soldering iron.

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