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| sp e - 11 - 8 - 125/ e /wy page 1 of 26 specification part no. : gw.71.5153 product name : 2.4ghz/5.8ghz dipole antenna for ism band and wlan ieee 802.11a/b/g/h feature : 5dbi high performance antenna rp - sma(m) hinged antenna rohs compliant
sp e - 11 - 8 - 125/ e /wy page 2 of 26 1. specification electrical frequency 2.4 ~ 2 .5ghz, 4.9 ~ 5.8ghz vswr <2 <2.1 peak gain ( straight ) 3.3 dbi 4.9 dbi peak gain ( bend ) 3.8 dbi 5. 5 dbi average gain (straight) - 0.9 dbi - 1.5 dbi average gain (bend) - 0.7 dbi - 0. 0dbi efficiency (straight) 8 0% 71 % efficiency (bend) 86 % 83 % polarization linear impedance 50 ohms radiation pattern omni input power 2w max. mechanical antenna length 194mm antenna diameter 12.8mm antenna body material tpu environmental temperature range - 40c to 85c humidity non - condensing 65c 95% rh sp e - 11 - 8 - 125/ e /wy page 3 of 26 2. antenna s11 property 2.1. retu rn loss 2.2. vswr -40 -35 -30 -25 -20 -15 -10 -5 0 2000 2500 3000 3500 4000 4500 5000 5500 6000 ( mhz) (db) straight bend 1 2 3 4 5 6 7 8 2000 2500 3000 3500 4000 4500 5000 5500 6000 ( mhz) straight bend sp e - 11 - 8 - 125/ e /wy page 4 of 26 3. 3d radiation property 3.1. radiation efficiency 0 10 20 30 40 50 60 70 80 90 100 2300 2350 2400 2450 2500 2550 2600 (%) straight bend ( mhz) 0 10 20 30 40 50 60 70 80 90 100 4800 5000 5200 5400 5600 5800 6000 (%) straight bend ( mhz) sp e - 11 - 8 - 125/ e /wy page 5 of 26 3.2. peak gain 0 1 2 3 4 5 2300 2350 2400 2450 2500 2550 2600 (dbi) striaght bend ( mhz) 1 2 3 4 5 6 4800 5000 5200 5400 5600 5800 6000 (dbi) straight bend ( mhz) sp e - 11 - 8 - 125/ e /wy page 6 of 26 3.3. average gain -5 -4 -3 -2 -1 0 2300 2350 2400 2450 2500 2550 2600 (dbi) straight bend ( mhz) -5 -4 -3 -2 -1 0 4800 5000 5200 5400 5600 5800 6000 (dbi) straight bend ( mhz) sp e - 11 - 8 - 125/ e /wy page 7 of 26 3.4. radiation pattern e - plane radiation of straight position -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.45ghz 5.0ghz 5.8ghz sp e - 11 - 8 - 125/ e /wy page 8 of 26 h - plane radiation of straight position e - plane radiation of bend position -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.45ghz 5.0ghz 5.8ghz -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.45ghz 5.0ghz 5.8ghz sp e - 11 - 8 - 125/ e /wy page 9 of 26 h - plane radiatio n of bend position 4. ground plane effect three ground setups are used to see the affect of positioning gw.71 close to ground - 1. small ground (15 x 9cm) C common size of cpe devices. gw.71 is mounted at the longer edge for testing. 2. big ground edge (45 x 30cm) C simulate the effect of mounting antenna on a base station device. gw.71 is mounted at the centre of the longer edge. 3. big ground centre (45 x 30cm) C simulate the effect of mounting antenna in a centre of a big ground plane, such as vehicle top. -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.45ghz 5.0ghz 5.8ghz sp e - 11 - 8 - 125/ e /wy page 10 of 26 free space small ground edge big ground edge big ground center sp e - 11 - 8 - 125/ e /wy page 11 of 26 5. radiation property of gw.71 with different ground 5.1. radiation efficiency of straight gw.71 0 10 20 30 40 50 60 70 80 90 100 2300 2350 2400 2450 2500 2550 2600 (%) free space small gnd edge big gnd edge big gnd center ( mhz) 0 10 20 30 40 50 60 70 80 90 100 4800 5000 5200 5400 5600 5800 6000 (%) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 12 of 26 5.2. radiation efficiency of bend gw.71 0 10 20 30 40 50 60 70 80 90 100 2300 2350 2400 2450 2500 2550 2600 (%) free space small gnd edge big gnd edge big gnd center ( mhz) 0 10 20 30 40 50 60 70 80 90 100 4800 5000 5200 5400 5600 5800 6000 (%) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 13 of 26 5.3. peak gain of straight gw.71 0 1 2 3 4 5 6 7 8 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) 0 1 2 3 4 5 6 7 8 4800 5000 5200 5400 5600 5800 6000 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 14 of 26 5.4. peak gai n of bend gw.71 0 1 2 3 4 5 6 7 8 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) 0 1 2 3 4 5 6 7 8 4800 5000 5200 5400 5600 5800 6000 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 15 of 26 5.5. average gain of straight gw.71 -6 -5 -4 -3 -2 -1 0 1 2 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) -6 -5 -4 -3 -2 -1 0 1 2 4800 5000 5200 5400 5600 5800 6000 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 16 of 26 5.6. average gain of bend gw.71 -6 -5 -4 -3 -2 -1 0 1 2 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) -6 -5 -4 -3 -2 -1 0 1 2 4800 5000 5200 5400 5600 5800 6000 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) sp e - 11 - 8 - 125/ e /wy page 17 of 26 5.7. radiation pattern of straight gw.71 at 2.45ghz e - plane radiation h - plane radiation (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 18 of 26 5.8. radiation pattern of bend gw.71 at 2.45ghz e - plane radiation h - plane radi ation (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 19 of 26 5.9. radiation pattern of straight gw.71 at 5.0ghz e - plane radiation h - plane radiation (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 20 of 26 5.10. radiation pattern of bend gw.71 at 5.0ghz e - plane radiation h - plane radiation (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 21 of 26 5.11. radiation pattern of straight gw.71 at 5.8ghz e - plane radiation h - plane radiat ion (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 22 of 26 5.12. radiation pattern of bend gw.71 at 5.8ghz e - plane radiation h - plane radiation (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center (dbi) -35 -30 -25 -20 -15 -10 -5 0 5 10 0 30 60 90 120 150 180 210 240 270 300 330 free space small gnd edge big gnd edge big gnd center sp e - 11 - 8 - 125/ e /wy page 23 of 26 6. 3 - d radiation patterns ( straight in free space) 2450mhz sp e - 11 - 8 - 125/ e /wy page 24 of 26 5000mhz sp e - 11 - 8 - 125/ e /wy page 25 of 26 5800mhz sp e - 11 - 8 - 125/ e /wy page 26 of 26 7. antenna drawing |
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