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| s pe - 12 - 8 - 098/d /a s page 1 of 13 specification part no. : gp.15 75 . 3 5 .3 .a .02 product name : 3.5 mm thick gps patch antenna , 1575 mhz features : 3 5 m m* 3 5 mm* 3.5 mm rohs compliant
s pe - 12 - 8 - 098/d /a s page 2 of 13 1. introduction this 35*35mm ceramic gps /galileo patch antenna is based on smart xtremegain? technology. it is mounted via pin and double - sided adhesive and has been tuned as the optimal solution for the customer device environment. 2. key antenna performance indicators original patch specification tested on 5 0 *50 mm ground plane no parameter specification 1 center frequency 1575mhz 6mhz 2 bandwidth 22mhz min 3 vswr 1.5 max 4 gain at zenith 2.0 dbic typ. 5 gain at 10 elevation 1.5dbic typ. 6 axial ratio 3 db max 7 polarization rhcp 8 impedance 50 ohms 9 frequency temperature coefficient f 0 20ppm / o c 10 operating temperature - 40c to +8 5c s pe - 12 - 8 - 098/d /a s page 3 of 13 3. test setup figure 1 . return loss measurement. figure 2 . peak gain, average gain, efficiency and radiation pattern measurements. z y x s pe - 12 - 8 - 098/d /a s page 4 of 13 4. antenna parameters 4.1 . return loss f igure 3 . return loss of the gp.1575.35.a.02 4.2. vswr figure 4. vswr of the gp.1575.35.a.02 s pe - 12 - 8 - 098/d /a s page 5 of 13 4.3 . efficiency f igure 5 . efficiency of the gp.1575.35.a.02 4 .4 . peak gain f igure 6 . peak gain of the gp.1575.35.a.02 . s pe - 12 - 8 - 098/d /a s page 6 of 13 5. 2d radiation 5.1 xz plane radiation s pe - 12 - 8 - 098/d /a s page 7 of 13 5.2 yz plane radiation s pe - 12 - 8 - 098/d /a s page 8 of 13 5.3 axial ratio s pe - 12 - 8 - 098/d /a s page 9 of 13 5.4 3d radiation f igure 7 . radiation pattern of the gp.1575.35.a.02 at 1575mhz . s pe - 12 - 8 - 098/d /a s page 10 of 13 6 . mechanical drawing s pe - 12 - 8 - 098/d /a s page 11 of 13 6.1 adhesive thickness 6.2 layout dimensions s pe - 12 - 8 - 098/d /a s page 12 of 13 6.3 test fixture antenna setup and measurements s pe - 12 - 8 - 098/d /a s page 13 of 13 7 . pack ag ing taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. taoglas reserves all rights to this document an d the information contained herein. reproduction, use or disclosure to third parties without express permission is strictly prohibited. copyright ? taoglas ltd. |
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