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dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 1 of 16 specification part no. : sggp.25 .2 .a.02 description : gps/glonass sm d mount embedded ceramic patch antenna 25*25 *2mm feature s : 3.34 dbi peak gain for gps band 3.32 dbi peak gain for glonass band 25 mm * 25 mm * 2 m m dimensio n smd direct mount ceram ic patch a ntenna automotive ts16949 production and quality approved rohs compliant front back
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 2 of 16 1. introduction the sggp. 25 .2 .a.02 is a n embedded smd c eramic gps /glonass passive patch antenna with a low profile of 2 mm thickness. it is designed for application s such as - navigation - infotainment - vehicle tracking/fleet management systems - uav - telematics devices where a high performance solution is needed in a low profile form factor the antenna has been tuned to mount centrally a 50* 5 0 mm ground plane, working at 1575.42mhz and 1602mhz, with a 3.34 dbi gain and 3.32 dbi gain, respectively . 70% efficiency is best in class. the ceramic patch is mounted via reflow process from a pick and place machine . the antenna itself is manufactured and tested in a ts1 6949 first tier automotive approved facility . for further optimization to customer specific device environments wher e ground - plane size or mounting location is different , which can lead to detuning, a custom tuned patch antennas can be supplied, subject to nre and moq. for more details please contact your regional taoglas facility.
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 3 of 16 2. specification electrical application bands gps glonass operation frequency (mhz) 1575.42 1.023 1602 5 return loss (db) < - 10 gain at zenith (dbi) 3.34 3.32 efficiency ( %) 67.41 67.94 impedance 50 ohms mechanical ceramic dimension (mm) 25 * 25 * 2 weight (g) 5.74 environmental operation temperature - 40c to 85 c humidity non - condensing 65c 95% rh * antenna properties were measured with the antenna mounted on 5 0 *5 0 mm ground plane taoglas part # sggpd. 25b
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 4 of 16 3. antenna characteristcs 3.1. return loss 3.2. efficiency
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 5 of 16 3.3. average gain 3.4. peak gain
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 6 of 16 4. antenna radiation p attern 4.1. measurement set up the sg gp.25 .2 .a.02 antenna is tested with 50mm*5 0mm ground plane in a ctia certified ets - lindgren anechoic chamber . the test setup is shown below . y x z
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 7 of 16 4.2. 2d radiation pattern x y plane x z plane x y x z
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 8 of 16 yz plane y z
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 9 of 16 4.3. 3d radiatio n pattern 1575.42mhz 1602mhz
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 10 of 16 5. mechanical drawing unit:mm
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 11 of 16 6. evaluation board ( sggpd.25 b ) unit:mm
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 12 of 16 7. pcb footprint recommendation unit:mm
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 13 of 16 unit:mm
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 14 of 16 8. recommended reflow soldering profile sggp.12 can be assembled following pb - free assembly . according to the standard ipc/jedec j - std - 020c, the temperature profile suggested is as follows: phase profile features pb - free assembly (snagcu) preheat temperature min(tsmin) temperature ma x (tsma x ) time(ts) from (tsmin to tsma x ) 150c 200c 60 - 120 sec onds ramp - up avg. ramp - up rate (tsma x to tp) 3c/second(ma x ) reflow temperature(tl) total time above tl (tl) 217c 30 - 100 seconds peak temperature(tp) time(tp) 260c 2 - 5 seconds ramp - down rate 3c/second(ma x ) time from 25c to peak temperature 8 minut es ma x . composition of solder paste 96.5sn/3ag/0.5cu solder paste model shenmao pf606 - p26 s oldering iron condition: soldering iron temperature 270c10c. apply preheating at 120c for 2 - 3 minutes. finish soldering for each terminal within 3 sec onds, if soldering iron temperature over 270c10c for 3 seconds, it may cause component surface peeling or damage.
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 15 of 16 9. packagin g
dsp - 15 - 8 - spe - 16 - 8 - 080 /a/ ss page 16 of 16

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