SPECIFICATION Model No. : SGP.25D Part No. : SGP.1575.25.4.D.02 Product Name : GPS SMT Patch Antenna Features 25mm*25mm*4mm 1575MHz Centre Frequency Patent Pending RoHS Photo Halogen Free Compliant : SPE-11-8-140/C/SS Page 1 of 11 1. Introduction This ceramic GPS patch antenna is based on smart XtremeGain™ technology. It is mounted via SMT process and has been tuned as the optimal solution for the ublox C16-G25Q GSM/GPS Integrated reference Design. The C16-G25Q GSM/GPS reference design is a complete and integrated solution for telematics applications such as fleet management, asset tracking, road pricing, and security/surveillance. It demonstrates the integration of u-blox’ NEO-5Q GPS receiver with a LEON-G200 GPRS/GSM module. This 100% SMD solution uses SMT passive GPS (Taoglas SGP.25D) and GSM antenna (Taoglas PA.25A) and an on-board SIM Chip with activated phone number (SIM holder optional for mechanical (SIM). On the test fixture of 63.2 x 50.03 mm (GND Plane) the antenna has a centre frequency of 1567MHz ± 3MHz 2. Specification No Parameter Specification 1 Range of Receiving Frequency 1575MHz +/- 1.023MHz 2 Bandwidth 22 MHz min with Return Loss <-10dB 3 VSWR 1.5 max 4 Gain at Zenith +1.0 dBic typ. 5 Axial ratio 4.0 dB Max. 6 Impedance 50 Ω 7 Polarization Right Hand Circular Polarization 8 Frequency Temperature Coefficient 9 Operating Temperature 0 ± 20 ppm/ ºC max @ -40ºC to +85ºC -40ºC to +85ºC SPE-11-8-140/C/SS Page 2 of 11 3. Electrical Specifications 3.1 Return Loss, SWR, Impedance (For Ublox C16-G25Q Reference Design) SPE-11-8-140/C/SS Page 3 of 11 3.2 Matching Circuit SPE-11-8-140/C/SS Page 4 of 11 3.3 Axial Ratio Test Mode Freq (MHz) Max Gain (dBi) Min Gain (dBi) Avg Gain (dBi) Source Polar. Axial Ratio 1575.42 -1.67 / 359.10 -40.80 / 263.03 -6.46 CP SPE-11-8-140/C/SS Page 5 of 11 3.4 Cut plane patterns X – Z Plane Test Mode Freq (MHz) Max Gain (dBi) Min Gain (dBi) Avg Gain (dBi) Source Polar. XZ 1575.42 -1.92 / 358 -25.43 / 228 -2.49 RHCP SPE-11-8-140/C/SS Page 6 of 11 Y – Z Plane Test Mode Freq (MHz) Max Gain (dBi) Min Gain (dBi) Avg Gain (dBi) Source Polar. YZ 1575.42 -1.71 / 355 -13.07 / 225 -2.53 RHCP SPE-11-8-140/C/SS Page 7 of 11 4. Mechanical Specifications 4.1 Dimensions and Drawing SPE-11-8-140/C/SS Page 8 of 11 4.2 Test Fixture and Measurements XXXX XXXX SPE-11-8-140/C/SS Page 9 of 11 5. Antenna Recommended Soldering Conditions 5.1 Flux, Solder • Use rosin-based flux. Don’t use highly acidic flux with halide content exceeding 0.2wt%(chlorine conversion value). • Use Sn solder. 5.2 Reflow soldering conditions • Pre-heating should be in such a way that the temperature difference between solder and product surface is limited to 150℃ max. Cooling into solvent after soldering also should be in such a way that temperature difference is limited to 100℃ max. Unwrought pre-heating may cause cracks on the product, resulting in the deterioration of products quality. 5.3 Reworking with soldering iron • The following conditions must be strictly followed when using a soldering iron. Pre-heating 150, 1 min Tip temperature 290 max Soldering iron output 30w max Soldering time 3 second max SPE-11-8-140/C/SS Page 10 of 11 6. Packaging 200 pieces/Reel/Inner carton, 4 reels in outer carton - (800) SPE-11-8-140/C/SS Page 11 of 11