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| spe - 13 - 8 - 078/a /as page 1 of 11 specification part number: rg.01.26.1500 q product name : road m arker quad band cellular antenna amps/gsm/pcs/dcs 850/900/1800/1900 features : low profile - diameter 99 mm* height 19 mm uv and vandal resistant abs housing rohs compliant top bottom side profile
spe - 13 - 8 - 078/a /as page 2 of 11 1. i ntroduction t aoglas usa has designed a range of efficient antenna s inside us standard raised non reflective roadmarker s . th ese are designed for, and installed inside, the low profile botts dot s that can to be mounted directly on the pav ement and road in the usa. th ese antenna s exhibit remarkably high efficiencies in such s mall package s and live in a very low profile enclosure. they are designed to be mounted directly on the road, pavement or manhole cover , just like a standard roadmarke r. the se antenna s have been potte d with the epoxy that is tradi tional ly used to secure the roadmarker itself to the ground. there are no air gaps whatsoever inside the new type approved roadmarker with antenna, in order to maintain the mechanical integrit y. it is presumed that th e standard black epoxy will also be used to install the roadmar ker in its final resting place on the ground. 2. specification electrical band amps gsm dcs pcs frequency (mhz) 824 - 894 880 - 960 1710 - 1880 1850 - 1990 polarization linear impedance (ohms) 50 ohms peak gain (dbi) 2.5 2.5 1 0.6 efficiency (%) 30 28 18 18 return loss (db) - 1 8 - 18 - 1 8 - 16 radiation properties omni - directional max input power (watts) 10 mechanical dimensions height = 19 mm and diameter = 9 9mm cable belden 7805r coaxial cable connector fully customizable casing uv resistant abs sealant potting environmental protection ip67 corrosion 5% naci for 96hrs temperature range - 40c to +85c thermal shock 100 cycles - 40c to +85c humidity non - condensing 65c 95% rh shock (drop test) 1m drop on concrete 6 axes cable pull 8 kgf spe - 13 - 8 - 078/a /as page 3 of 11 3. test set up figure 1. impe dance (left hand) and peak gain , efficiency and radiation pattern measurements (right hand). spe - 13 - 8 - 078/a /as page 4 of 11 4. antenna parameters 4 .1. return loss f igure 2 . return loss cellular road marker in free space and on piece of road. 4.2 . efficiency f igure 3 . efficiency cellular road marker in free space and on piece of road . spe - 13 - 8 - 078/a /as page 5 of 11 4 .3 . peak gain f igure 4 . peak gain cellular roa d marker in free space and on piece of road spe - 13 - 8 - 078/a /as page 6 of 11 4 .4 . radiation pattern f igure 5 . cellular road marker radiation pattern at 849 mhz on piece of road . . f igure 6. cellular road marker radiation pattern at 940 mhz on piece of road. spe - 13 - 8 - 078/a /as page 7 of 11 f igure 7 . cellular road marker radiation patt ern at 1840 mhz on piece of road . . f igure 8 . cellular road marker radiation pattern at 1950 mhz on piece of road . spe - 13 - 8 - 078/a /as page 8 of 11 . figure 9. cellular road marker radiation pattern at 849 mhz in free s pace. figure 10. cellular road marker radiation pattern at 940 mhz in fre e s pace. spe - 13 - 8 - 078/a /as page 9 of 11 figure 11. cellular road marker radiation pattern at 1840 mhz in free s pace. figure 12. cellular road marker radiation pattern at 1940 mhz in free s pace. spe - 13 - 8 - 078/a /as page 10 of 11 5. mechanical drawing spe - 13 - 8 - 078/a /as page 11 of 11 |
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