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dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 1 of 15 specification part no. : cggp. 18.2.a. 02 description : gps/glonass dual - band ceramic patch embedded antenna 18x18x2mm feature s : wide - band operation 1575 - 1610mhz 3.23 dbi peak gain for gps band 3.53 dbi peak gain for g lonass band low profile C
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 2 of 15 1. introduction the cggp.18.2.a.02 is a 18mm c eramic gps/glonass embedded passive patch antenna, with a 2mm low profile. it is designed f or vehicle telematic applciations as well as other m2m/iot devices . typical applicable industries are transportation, defens e, marine, agriculture , and navigation. the antenna has been tuned and tested on a 70 x 70 mm ground plane, working at gps 1575.42 mhz and glonass 1602mhz, with 3.23 dbi gain and 3.53 dbi gain, respectively. the low profile design makes this antenna perfect for applications where space is limited. it can be easily through - hole mounted on pcb via pin . d ouble sided adhesive on the bottom of the patch helps to keep it in place while undergoing mounting . the cggp.18.2.a.02 is manufactured and tested in a ts16949 first tier automotive approved facility . like all antennas, at least some detuning will occur when placed in a different device e nvironment or on a different ground - plane. for large volume gps/glonass projects where performance is paramount, tuning for custom er specific device environment and ground - plane size is needed , so custom tuned patch antennas should always be used . taogla s can also provide different pin length for the se antennas, all subject to potential nre and moq. for more details please contact your regional taoglas sales office.
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 3 of 15 2. specification electrical application bands gps glonass operation frequency ( mhz ) 1575. 42 1.023 1602 5 return loss (db) - 10 max . gain at zenith (dbi) 3.23 3.53 efficiency (%) 54.88 59.52 impedance 50 ohms mechanical ceramic dimension (mm) 18 x 18 x 2 pin diameter (mm) 0.9 pin length (mm) 2.25 weight (g) 2.5 environmental operatio n temperature - 40c to 85 c humidity non - condensing 65c 95% rh * antenna properties were measured with the antenna mounted on 70 *70 mm ground plane taoglas part # cggpd.18.d
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 4 of 15 3. antenna characteristcs 3.1 return loss 3. 2 efficiency
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 5 of 15 3. 3 average gain 3. 4 peak gain
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 6 of 15 4. antenna radiation p attern 4.1. measurement setup the c ggp.18.2.a.02 antenna is tested in free - space on a 70 mm*70mm ground plane in a ctia certified ets - lindgren anechoic chamber . the test setup is shown below . y x z
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 7 of 15 4.2. 2d radiatio n pattern xy plane x z plane x y x z
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 8 of 15 y z plane y z
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 9 of 15 4.3. 3d radiation pattern 1575.42mhz 1602mhz
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 10 of 15 5. mechanical drawing unit:mm
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 11 of 15 5.1 adhesive thickness
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 12 of 15 6. evaluation board (cggpd.18.d) unit:mm
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 13 of 15 7. pcb footprint recommendation
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 14 of 15 8. packaging 8.1. inner tray & inner carton
dsp - 15 - 8 - dsp - 15 - 8 - 0 1 7 /a/ss page 15 of 15 8.2. carton

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