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| spe - 12 - 8 - 091/a /ss page 1 of 8 specification part no. : gp . 157 5 . 1 8 . 4 . a . 02 product name : miniature gps patch antenna features : 18 m m* 18 mm* 4 mm rohs compliant :
spe - 12 - 8 - 091/a /ss page 2 of 8 1. introduction this ceramic gps patch antenna is based on smart xtremegain ? technolog y . it is mounted via pin and double - sided adhesive and has been selected as optimal solution for the 50x5 0mm ground plane. 2. specification table original patch specification tested on 50 *50 mm ground plane no parameter specification 1 center freque ncy 1575mhz +/ - 3mhz** 2 impedance 50? 3 bandwidth 8mhz min return loss < - 10db 4 vswr 1.5 max center frequency 5 gain toward zenith +2.5 dbi c typ. 6 gain at 10elevation - 4.5 dbi c typ. 7 axial ratio 3db max. 8 polarization right hand circular polarization 9 frequency temperature c oefficient f 0 20ppm/c 10 operating temperature - 40oc to +85 oc **changes in user groundplane and environment will offset centre frequency spe - 12 - 8 - 091/a /ss page 3 of 8 3. electrical specification 3.1 smith chart spe - 12 - 8 - 091/a /ss page 4 of 8 4. dimensions and drawing spe - 12 - 8 - 091/a /ss page 5 of 8 4.1 layout dimension *note layou t dimensions may be a ffected by the thickness of the pcb 5. test jig and dimensions spe - 12 - 8 - 091/a /ss page 6 of 8 5.1 test fixture antenna setup & measurements spe - 12 - 8 - 091/a /ss page 7 of 8 6. packaging ? per tray: 25 pieces ? per carton (inside box) C 8 trays = 2 00 pieces ? outer carton (outside box) C 4 cartons = 8 00 pieces 25 pieces per tray 8 tray s per carton spe - 12 - 8 - 091/a /ss page 8 of 8 |
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