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spe-12-8-0 47/j / ez page 1 of 25 specification g21 gsm hercules gen.ii penta band cellular antenna part no. : g21. b. 301111 product name : hercules gen.ii penta band cellular antenna screw - mount (permanent mount) feature s : gsm /gprs/cdma/evdo/umts/hspa/wcdma 850/900/1800/1900/2100 mhz low profile - height 29mm , diameter 49 mm heavy duty screw mount uv and vandal resistant pc housing ip67 & ip69k 3m cable rg174 standard sma(m) connector standard cable and connector are customizable rohs compliant
spe-12-8-0 47/j / ez page 2 of 25 1. introduction th e g21 (generation ii) hercules is a high performance, steel thread-mount, penta-band cellular antenna for external use on vehicles and outdoor assets worldwide. omni- directional high gain across all bands ensures constant reception and transmission. the durable uv resistant pc housing is resistant to vandalism and direct attack. with ip67 and ip69k waterproof rating, the g21 can be screw mounted on vehicles and outdoor/indoor assets via its extra thick thread. the antenna has a compact dimension at only 28.5mm in height and 49mm in diameter. the enclosure is designed to not catch on tree-branches. taoglas recommend a minimum cable length of 300mm when used on a ground plane to achieve an efficiency of greater than 30%. this antenna can be mounted on metal structures. the g21 is an ideal solution for cellular external applications where it can operate with or without the ground plane.
spe-12-8-0 47/j / ez page 3 of 25 2 . specification electrical - on 30x30cm ground plane standard amps gsm dcs pcs 3g band (mhz) 850 900 1800 1900 2100 frequency (mhz) 824 - 896 880 - 960 1710 - 1880 1850 - 1990 1920 C 2170 return loss (db) cable length (meter) 0.3 - 6.0 - 5.2 - 6.1 - 6.2 - 5.8 1.0 - 7.8 - 8.7 - 11.4 - 15.3 - 13.7 2.0 - 8.1 - 9.3 - 16.5 - 20.3 - 19.5 3.0 - 11.0 - 12.4 - 17.5 - 18.3 - 18.1 5.0 - 11.8 - 13.6 - 17.6 - 17.8 - 17.8 efficiency (%) cable length (meter) 0.3 51.1 41.4 38.0 46.5 33 .3 1.0 3 9.4 40.2 42.2 43.4 31.3 2.0 24.3 27.5 28.4 28 .2 2 9.6 3.0 24.6 27.6 22.0 23 .8 24.6 5.0 17.1 16.4 15.7 15.0 12.0 peak gain (dbi) cable length (meter) 0.3 2.0 1 .5 4.0 4.3 4.2 1.0 1.7 2.7 1.8 1.9 1.8 2.0 1.4 2.1 0.8 - 0 .3 - 0. 7 3.0 1.0 1.0 - 0.9 - 1.1 - 1.1 5.0 - 0.8 - 0.3 - 4. 2 - 3.9 - 4.2 polarization linear impedance 50 ohms max input power 10 watts vswr <3.5:1
spe-12-8-0 47/j / ez page 4 of 25 electrical - on 60x60cm ground plane standard amps gsm dcs pcs 3g return loss (db) cable length (meter) 0.3 - 6.0 - 5.6 - 8.8 - 8.5 - 7.8 1.0 - 7.8 - 8.2 - 13.6 - 13.8 - 16.3 2.0 - 8.9 - 11.1 - 16.7 - 19.6 - 19.5 3.0 - 11.0 - 13.6 - 17.8 - 18.3 - 18.6 5.0 - 12.3 - 14.8 - 19.1 - 19.1 - 18.2 efficiency (%) cable length (meter) 0.3 31.0 30.3 47.1 43.6 41.6 1.0 28.0 29.3 39.2 33.5 31.2 2.0 26.3 28.5 28.8 29.6 30.7 3.0 19.2 18.6 21.3 22.1 25.2 5.0 11.4 12.8 13.7 11.6 12.3 peak gain (dbi) cable length (meter) 0.3 2.1 2.3 3.1 3.0 2.8 1.0 1.0 0.6 1.9 1.6 0 .9 2.0 0.6 0.2 0.8 - 0.2 - 0.8 3.0 - 0.5 0.1 0.2 - 0.1 - 1.1 5.0 - 2.3 - 2.2 - 2.9 - 3.4 - 3.9 electrical - free space return loss (db) cable length (meter) 0.3 - 6. 2 - 5. 3 - 5.8 - 6. 4 - 5. 6 1.0 - 8.1 - 8. 3 - 10.9 - 15. 8 - 13. 2 2.0 - 8.5 - 12.3 - 15.8 - 17.6 - 17. 2 3.0 - 11. 6 - 12.9 - 16.9 - 17.9 - 18. 3 5.0 - 11. 8 - 15 .6 - 18 .6 - 1 8 . 4 - 18 . 8 efficiency (%) cable length (meter) 0.3 53 . 2 5 1. 3 42 . 8 43 . 6 46 . 7 1.0 2 4.3 32.6 32.8 40.2 27.8 2.0 2 4.1 25.8 27.8 31.2 26.2 3.0 2 3.3 24.2 23.4 22.8 23.6 5.0 13.6 20.8 12.1 1 1.8 10.3 peak gain (dbi) cable length (meter) 0.3 0.4 0.9 2 . 4 2.5 2.2 1.0 0.2 0.2 0. 9 0.9 1.8 2.0 - 1.7 - 1 . 3 1.1 - 0.4 - 1. 5 3.0 - 1.8 - 1.1 - 1. 2 - 1.8 - 1.9 5.0 - 3.3 - 2.3 - 4. 1 - 4. 6 - 4. 7
spe-12-8-0 47/j / ez page 5 of 25 mechanical dimensions height = 29 mm and diameter = 49 mm cable 3m rg 174 C fully customizable connector sma - m ale C fully customizable casing uv resistant pc base and thread nickel plated steel thread diameter 18 mm weather proof gasket cr4305 foam with 3m9448b double - side adhesive sealant rubber stopper environmental protection ip6 7 & ip69k corrosion 5% nacl for 48 hrs - nickel plated steel base and thread temperature range - 40c to +85c thermal shock 100 cycles - 40c to +85c humidity non - condensing 65c 95% rh shock (drop test) 1m drop on concret e 6 axes cable pull 8 kgf recommended mounting torque 24.5 n ? m maximum mounting torque 29.5 n ? m weight 150g
spe-12-8-0 47/j / ez page 6 of 25 3. test set up y x z figure 1. g21 a ntenna test set up in free space, 30x30 cm metal plate , and 60x60 cm metal plate, r&szvl6 vna (left) and r&s4100 ctia 3d chamber (right).
spe-12-8-0 47/j / ez page 7 of 25 4. antenna parameters 4.1 return loss figure 2 . return loss of g21 hercules antenna in free space. figure 3 . return loss of g21 hercules antenna on 30 cm metal plate.
spe-12-8-0 47/j / ez page 8 of 25 figure 4 . return loss of g21 hercules antenna on 60 cm metal plate.
spe-12-8-0 47/j / ez page 9 of 25 4.2 efficiency figure 5 . efficiency of g21 hercules antenna in free space. figure 6 . efficiency of g21 hercules antenna on 30 cm metal plate.
spe-12-8-0 47/j / ez page 10 of 25 figure 7 . efficiency of g21 hercules antenna on 60 cm metal plate.
spe-12-8-0 47/j / ez page 11 of 25 4 .3 peak gain figure 8 . peak gain of g21 hercules antenna in free space. figure 9 . peak gain of g21 hercules antenna on 30 cm metal plate.
spe-12-8-0 47/j / ez page 12 of 25 figure 10 . peak gain of g21 hercules antenna on 60 cm metal plate.
spe-12-8-0 47/j / ez page 13 of 25 5. radiation patterns 5.1 radiation patterns (free space) figure 11 . radiation pattern at 849 mhz, figure 1 as reference (db), with 2m rg174 cable and free space
spe-12-8-0 47/j / ez page 14 of 25 figure 12. radiation pattern at 915 mhz, figure 1 as reference (db), with 2 m rg174 cable and free space. figure 13. radiation pattern at 1805 mhz, figure 1 as reference (db), with 2m rg174 cable and free space.
spe-12-8-0 47/j / ez page 15 of 25 figur e 14. radiation pattern at 1910 mhz, figure 1 as reference (db), with 2m rg174 cable and free space. figure 15. radiation pattern at 2110 mhz, figure 1 as reference (db), with 2m rg174 cable and free space.
spe-12-8-0 47/j / ez page 16 of 25 5.2 radiation patterns (30*30cm ground plane) figure 16. radiation pattern at 849 mhz, figure 1 as reference (db), with 2m rg174 cable and 30x30 cm metal plate. figure 17. radiation pattern at 915 mhz, figure 1 as reference (db), with 2m rg174 cable and 30x30 cm metal plate.
spe-12-8-0 47/j / ez page 17 of 25 figure 18. radiation pattern at 1805 mhz, figure 1 as reference (db), with 2m rg174 cable and 30x30 cm metal plate. figure 19. radiation pattern at 1910 mhz, figure 1 as reference (db), with 2m rg174 cable and 30x30 cm metal plate.
spe-12-8-0 47/j / ez page 18 of 25 figure 20. radiation pattern at 2110 mhz, figure 1 as reference (db), with 2m rg174 cable and 30x30 cm metal plate. 5.3 radiation patterns (60*60cm ground plane) figure 21. radiation pattern at 849 mhz, figure 1 as reference (db), with 2m rg174 cable and 60x60 cm metal plate.
spe-12-8-0 47/j / ez page 19 of 25 figure 22. radiation pattern at 915 mhz, figure 1 as reference (db), with 2m rg174 cable and 60x60 cm metal plate. figure 23. radiation pattern at 1805 mhz, figure 1 as reference (db), with 2m rg174 cable and 60x60 cm metal plate.
spe-12-8-0 47/j / ez page 20 of 25 figure 24. ra diation pattern at 1910 mhz, figure 1 as reference (db), with 2m rg174 cable and 60x60 cm metal plate. figure 25. radiation pattern at 2110 mhz, figure 1 as reference (db), with 2m rg174 cable and 60x60 cm metal plate.
spe-12-8-0 47/j / ez page 21 of 25
spe-12-8-0 47/j / ez page 22 of 25 6. mechanical drawings
spe-12-8-0 47/j / ez page 23 of 25 7. installation
spe-12-8-0 47/j / ez page 24 of 25 8. packaging
spe-12-8-0 47/j / ez page 25 of 25 taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. taoglas reserves all rights to this document and the information contained herein. reproduction, use or disclosure to third parties without express permission is strictly prohibited. copyright ? taoglas ltd.

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