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| spe - 12 - 8 - 014/ b / zl page 1 of 20 specification part no. : gw.17.07.0250e product name : 2.4ghz 2dbi click - in terminal dipole antenna 250mm rg - 178 cable ipex mhfi feature : high radiation performance stable efficiency, gain and radiation patterns on different mounting environments and ground - planes hinged 90 degrees rohs compliant
spe - 12 - 8 - 014/ b / zl page 2 of 20 i. introduction the gw.17 click C in terminal antenna is a high performance robust 2.4ghz dipole antenna designed for quick assembly onto finished products . the specially designed click in plastic head g reatly reduces the assembly time and cost compared with most terminal ant ennas with connector. the standard product comes with 250mm low loss rg - 178 cable and ipex mhfi (u.fl) connector. having the cable and ipex connector coming out directly from the hous ing eliminates the need for a separate costly cable assembly and bulky mating c onnector on the device. the gw.17 has excellent stable radiation properties in all mounting conditions, mounted with and without a ground - plane, in bent 90 degrees or straight position. cable length and connector type ii. specification electrical frequency 2.4 ~ 2.5ghz, peak g ain (straight) 2.7 dbi peak gain (bend) 1.6 dbi average gain (straight) - 1.3 dbi average gain (bend) - 1.3 dbi efficiency (straight) 74 % efficiency (bend ) 74 % polarization linear impedance 50 ohms radiation pattern omni input power 2w max. mechanical antenna length 112.6 mm antenna diameter 9.3 mm antenna body material tpu environmental temperature range - 40c to 85c humidity non - condensing 65 c 95% rh spe - 12 - 8 - 014/ b / zl page 3 of 20 iii. ant enna s11 property iii.1. return loss iii.2. vswr -25 -20 -15 -10 -5 0 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 ( mhz) (db) straight bend 1 2 3 4 5 6 7 8 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 ( mhz) straight bend spe - 12 - 8 - 014/ b / zl page 4 of 20 iv. 3d radiation property iv.1. radiation efficiency iv.2. peak gain 0 10 20 30 40 50 60 70 80 90 100 2300 2350 2400 2450 2500 2550 2600 (%) straight bend ( mhz) -2 -1 0 1 2 3 4 2300 2350 2400 2450 2500 2550 2600 (dbi) straight bend ( mhz) spe - 12 - 8 - 014/ b / zl page 5 of 20 iv.3. average gain -4 -3 -2 -1 0 1 2 2300 2350 2400 2450 2500 2550 2600 (dbi) straight bend ( mhz) spe - 12 - 8 - 014/ b / zl page 6 of 20 iv.4. radiation pattern e - plane radiation of straight position h - plane radiation of straight position (dbi) -40 -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.40ghz 2.45ghz 2.50ghz (dbi) -40 -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.40ghz 2.45ghz 2.50ghz spe - 12 - 8 - 014/ b / zl page 7 of 20 e - plane radiation o f bend position h - plane radiation of bend position (dbi) -40 -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.40ghz 2.45ghz 2.50ghz (dbi) -40 -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2.40ghz 2.45ghz 2.50ghz spe - 12 - 8 - 014/ b / zl page 8 of 20 v. ground plane effect three ground setups are used to see the affect of positioning gw. 17 close to ground - 1. small ground (15 x 9cm) C common size of cpe devices. gw. 17 is mounted at the longer ed ge for testing. 2. big ground edge (45 x 30cm) C simulate the effect of mounting antenna on a base station device. gw. 17 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. f ree space small ground edge b ig ground edge b ig ground center spe - 12 - 8 - 014/ b / zl page 9 of 20 vi. radiation property of gw.17 with different ground vi.1. radiation efficiency of straight gw.17 vi.2. radiation efficiency of bend gw.17 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 2300 2350 2400 2450 2500 2550 2600 (%) free space small gnd edge big gnd edge big gnd center ( mhz) spe - 12 - 8 - 014/ b / zl page 10 of 20 vi.3. peak gain of straight gw.17 vi.4. peak gain of bend gw.17 -2 -1 0 1 2 3 4 5 6 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) -2 -1 0 1 2 3 4 5 6 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) spe - 12 - 8 - 014/ b / zl page 11 of 20 vi.5. average gain of straight gw.17 vi.6. average gain of bend gw.17 -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 2300 2350 2400 2450 2500 2550 2600 (dbi) free space small gnd edge big gnd edge big gnd center ( mhz) spe - 12 - 8 - 014/ b / zl page 12 of 20 vi.7. radiation pattern of straight gw.17 at 2.4 0 ghz 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 spe - 12 - 8 - 014/ b / zl page 13 of 20 vi.8. radiation pattern of bend gw.17 at 2.4 0 ghz 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 spe - 12 - 8 - 014/ b / zl page 14 of 20 vi.9. radiation pattern of straight gw.17 at 2.4 5ghz 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 spe - 12 - 8 - 014/ b / zl page 15 of 20 vi.10. radiation pattern of bend gw.17 at 2.4 5ghz 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 spe - 12 - 8 - 014/ b / zl page 16 of 20 vi.11. radiation pattern of straight gw.17 at 2.50 ghz e - plane radi ation 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 spe - 12 - 8 - 014/ b / zl page 17 of 20 vi.12. radiat ion pattern of bend gw.17 at 2.50 ghz 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 spe - 12 - 8 - 014/ b / zl page 18 of 20 vii. antenna drawing viii. antenna socket design spe - 12 - 8 - 014/ b / zl page 19 of 20 spe - 12 - 8 - 014/ b / zl page 20 of 20 ix. antenna inserti on mechanism |
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