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| spe - 1 1 - 8 - 062/j /a s page 1 of 11 specification part no. : cgg p. 3 5 . 3 .a .02 product name : 3.5 mm thick gps /glonass patch antenna , 1575/1610mhz features : wide - band operation 3 5 m m* 3 5 mm* 3.5 mm 4 dbi peak gain (on 50mm*5 0mm ground - plane) 85% efficiency (on 50mm*5 0mm ground - plane) pin type automotive ts16949 production and quality approved rohs compliant :
spe - 1 1 - 8 - 062/j /a s page 2 of 11 1. introduction this 35 mm ceramic gps/glonass patch antenna, by means of a double resonance design, has unique wide - band operation over the whole operating bands of gps and glonass systems from 1575mhz to 1610mhz. it is mounted via pin and double - sided adhesive. this antenna has been tu ned for a centre position on a 50mm*5 0mm ground - pl ane. it is manufactured and tested in a ts16949 first tier automotive approved facility. for further optimization to customer specific device environments where positioning is off centre or on different ground - plane sizes, custom tuned patch antennas can b e supplied. for more details please contact us. 2. key antenna performance indicators original patch specification tested on 5 0 *50 mm ground plane taoglas part # cggpd.35.a no parameter specification 1 frequency gps 1575.42 1.023 mhz glonass 1602 5mhz 2 bandwidth 22mhz min 3 vswr 1.5 4 gain at zenith 4 .0 dbi typ. 5 gain at 10elevation 1.5dbi typ. 6 efficiency 85% typ. 7 axial ratio 3 db max 8 impedance 50 ohms 9 frequency temperature coefficient f 0 20ppm / oc 10 operating temperature - 40c to +85c spe - 1 1 - 8 - 062/j /a s page 3 of 11 3. test set up figure 1 . return loss measurement of the cggp.35.3.a.02. figure 2 . peak gain , efficiency and radiation pattern measurements of the cggp.35.3.a.02 . z y x spe - 1 1 - 8 - 062/j /a s page 4 of 11 4. antenna parameters 4.1 . return loss f igure 3 . return loss of the cggp .35. 3. a.02 . 4.2. vswr figure 4. vswr of the cggp.35.3.a.02 . spe - 1 1 - 8 - 062/j /a s page 5 of 11 4.3 . efficiency f igure 5 . efficiency of the cggp.35.3.a.02. 4 .4 . peak gain f igure 6 . peak gain of the cggp.35.3.a.02. spe - 1 1 - 8 - 062/j /a s page 6 of 11 4.5 radiation pattern f igure 7 . radiation patter n of the cggp.35.3.a.02 at 1560 mhz . figure 8 . radiation pattern of the cggp.35.3.a.02 at 1575mhz. spe - 1 1 - 8 - 062/j /a s page 7 of 11 figure 9 . radiation pattern of the cggp.35.3.a.02 at 1590mhz. figure 10 . radiation pattern of the cggp.35.3.a.02 at 1610mhz. spe - 1 1 - 8 - 062/j /a s page 8 of 11 5 . drawing spe - 1 1 - 8 - 062/j /a s page 9 of 11 5.1 adhesive thickness red line shows the adhesive without liner C thickness 0.08~0.1mm 6. pcb footprint recommendation spe - 1 1 - 8 - 062/j /a s page 10 of 11 7. evaluation board (cggpd.35.a) spe - 1 1 - 8 - 062/j /a s page 11 of 11 8. pack ag ing |
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