Got one CPATCH12… Looks OK, but pricey – i want to do large phased array, so i measured dimensions and will try to make it on other materials (original material – black FR4, probably requires some modifications if dielectric material changes).
Anyway, pics (with active part visible – i put microcontrast at max), dimensions (active part) and 3D drawing below.
Measured VSWR on this antenna (thanks, Laidukas):
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CPATCH12 – VSWR
Bad part – included connector is shorted inside – shield is soldered with center element:
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CPATCH12 – included jumper – shorted
Active part – pdf drawing – or download zip with 3D drawing (SolidWorks 2012)
EDIT: did homemade clone (copper clad PCB, knife, pliers) and tested in forest, does not look bad:
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Measuring VSWR on both antennas
Video of original and clone in action: