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| spe - 1 2 - 8 - 023 / b /ss page 1 of 14 specification part no. : ap . 35a .07.0054 a spec no. : ap.35a product name : 35 mm one stage gps active patch antenna module with back - end saw filter features : 35 mm* 35 mm* 5.5 mm (ground plane) 54 mm ?1.13 i - pex mhfi ( u.fl) 1 5 db lna rohs complia nt photo :
spe - 1 2 - 8 - 023 / b /ss page 2 of 14 1. introduction the ap.35a has been designed for embedded (inside device) integration with gps receiver modules, the ap.35a combines a 35*35*3.5mm advanced low profile ceramic patch antenna with a one stage lna and ultra thin c oaxial cable. the ground plane size of 35*35mm combined with the larger size gps patch, gives this solution a performance increase in gain of 1 ? 2db. it also helps shields the patch antenna from noise and increases performance at low elevations. . taoglas active antenna modules utilise xtremegain? technology for the highest sensitivity in the industry. this antenna system consists of two functional blocks, the lna portion and the patch antenna. the ap.35a has a back - end saw filter. spe - 1 2 - 8 - 023 / b /ss page 3 of 14 2. specificatio n 2.1 patch antenna parameter specification frequency 1575.42 1.023mhz gain @ zenith +2.5 dbic typ. @ zenith (35mm gp) polarization rhcp axial r atio 3.0db max. @zenith patch dimension 35*35*3.5mm 2.2 lna parameter specification frequency 1575.42 1.023mhz outer band attenuation f0=1575.42mhz f0 30mhz 5 db min. f0 50mhz 23 db min. f0 100mhz 28 db min. output impedance 50 output vswr 2.0 max pout at 1db gain compression point typ. - 2dbm min. - 6dbm lna gain, power consumption and noise figure voltage lna gain (typ) power consumption(ma) typ noise figure typ min. 1.8v 14db 3ma 1 .5db typ. 3.0v 15db 3ma 1 .5db max. 5.5v 15db 3ma 1 .5db 2.3 cable & connector parameter specification rf cable coaxial cable ?1.13 0.1mm, length 54 2.5 mm connector ipex mhfi (u.fl) spe - 1 2 - 8 - 023 / b /ss page 4 of 14 2.4 total specification (through antenna, lna, cable and connector) parameter specification freque ncy 1575.42 1.023mhz gain at 90 at 5v: 18 3dbi c at 3v: 17.5 ? 3dbi c at 1.8v: 15.5 ? 3dbi c output impedance 50 polarization rhcp output vswr max 2.0 operation temperature - 40c to + 85 c storage temperature - 40c to + 85 c relative humidity 40% to 95% input voltage min:1.8v typ. 3.0v max:5 v antenna 35*35*5.5 mm spe - 1 2 - 8 - 023 / b /ss page 5 of 14 3. technical drawing spe - 1 2 - 8 - 023 / b /ss page 6 of 14 4. radiatio n patterns 4.1 xz spe - 1 2 - 8 - 023 / b /ss page 7 of 14 4.2 yz spe - 1 2 - 8 - 023 / b /ss page 8 of 14 4.3 xy spe - 1 2 - 8 - 023 / b /ss page 9 of 14 5. axial ratio spe - 1 2 - 8 - 023 / b /ss page 10 of 14 6. lna gain and out of band rejection at 3.0v spe - 1 2 - 8 - 023 / b /ss page 11 of 14 7. lna noise figure at 3.0v spe - 1 2 - 8 - 023 / b /ss page 12 of 14 8. reliability tests 8.1 reliability test (room temperature +25 ? 8.1.1 s21 radiation gain at +25 ? 8. 1. 2 c/n at +25 ? spe - 1 2 - 8 - 023 / b /ss page 13 of 14 8. 2 reliability test (high temperature +85 ? 8. 2.1 s21 radiation gain at +85 ? 8.2.2 c/n at +85 ? spe - 1 2 - 8 - 023 / b /ss page 14 of 14 8. 3 reliability test (low temperature - 40 ? 8. 3.1 s21 radiation gain at - 40 ? 8.3.2 c/n at - 40 ? |
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