1 Eleazar Zuniga <ezuniga@taoglas.com> says in email of 28 Nov 2011 that we
2 should be able to use any of the pin or SMT patches other than the 35mm ones,
3 as long as we have ground plane under the patch itself that's as large as the
4 patch or bigger. I'm not sure I believe that, but adding an 0402 site to
5 ground for a tuning cap ala what the chip antenna docs call for might be a
6 reasonable thing to try?
9 12x12x4 mm, pin plus adhesive
10 gain towards zenith -0.5 dBic
13 15x15x4 mm, pin plus adhesive
17 18x18x2 mm, pin plus adhesive
18 gain towards zenith -0.5 dBic
21 18x18x4 mm, pin plus adhesive
22 gain towards zenith +3.5 dBic
23 $4.13 at q100 *** 50% the mass of 25mm
26 25x25x2 mm, pin plus adhesive
27 +2.0 dBic gain at zenith
30 25x25x4 mm, pin plus adhesive
31 gain towards zenith +3.5 dBic
34 surface-mount versions
38 -2.0 dBic at zenith, 4dB axial ratio, 6Mhz bandwidth
42 +1.0 dBic at zenith, 3dB axial ratio, 6Mhz bandwidth
46 +1.0 dBic at zenith, 4dB axial ratio, 5Mhz bandwidth
51 +2.0 dBic at zenith, 3dB axial ratio, 5Mhz bandwidth
54 From all of this, GP.1575.18.4.A.02 would seem to be the clear winner. Just
55 over 50% the mass of the 25mm version, same gain, only a few pennies more...
56 and much cheaper than any of the SMT versions with better specs. I also think
57 that soldering in the pin is likely to be a great mechanical retention