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SPE-14-8-103/A/MC Page 1 of 25 SPECIFICATION Part Number: MAT.03A Product Name: MAT.03A Embedded Active GPS and Cellular Antenna Assembly and Reference Board Features: 2in1 Embedded Antenna Solution Two SMA(F) connectors for Output SMT Active GPS Patch Antenna High performance 28dB LNA Ultra low power consumption Patch 25x25x4mm Cellular Antenna- PA.25 Hexa-Band Cellular SMT Antenna 2G and 3G Bands GSM/GPRS/CDMA/HSPA High efficiency Multi-band SMT antenna 35x5x6mm RoHS Compliant
SPE-14-8-103/A/MC Page 2 of 25 1. Introduction The MAT.03A Reference GPS and Cellular Embedded Antenna board combines the 2G/3G PA.25 Antenna from Taoglas. It can be used as a reference board design or actual embedded antenna for telematics applications such as fleet management, asset tracking, road pricing, and security/surveillance. Best placement for this reference board in a device would be over the existing mainboard and away from metal to allow for maximum radiated efficiency, and for the GPS antenna to get a view towards the sky. The board comes with one SMA(F) connector for each antenna feed on the bottom side for easy connection via a cable assembly to a module or test equipment. Cellular Antenna PA.25 This compact SMT ceramic high performance antenna achieves high efficiency on almost all worldwide 2G and 3G bands, for applications such as GSM/GPRS/CDMA/HSPA. Transmission losses are kept to absolute minimum resulting in much improved over the air (OTA) device performance compared to similar efficiency cable and connector antenna solutions. The patent pending revolutionary SMT GPS patch antenna allows for optimal GPS performance by combining the ceramic patch, SAW, LNA, and feed pad in one integral sandwich package, mounted on its own ground-plane. Having the SAW filter and LNA right after the feed reduces the chance of noise entering the transmission line and boosts the GPS signal at the source before noise enters, allowing for better signal to noise ratio. It also frees up space on your board traditionally used for the filter and LNA. The SAW is placed in front of the LNA, helping to prevent saturation due to nearby radio transmitters, and the possibility of radiated spurious emissions through other radio systems. Individual specifications on the antennas are available on the Taoglas website. Contact your regional Taoglas office for support on integration of th ese antennas in your own device such as gerber and layout review, and matching.
2.1 System Configuration
This antenna specification covers the Hexa-band Cellular Full band and GPS (L1 Band). Figure 1. System configuration
SPE-14-8-103/A/MC Page 4 of 25 2.2 PA.25 Cellular Antenna Electrical* 824–960 MHz 1710- 1880MHz 1850-1990MHz 1920-2170MHz Peak Gain (dBi) 0.48 2.13 2.54 2.25 Efficiency (%) 51.41 57.79 53.27 48.34 Return loss <-5 dB Impedance 50Ω Polarization Linear Mechanical EVB Connector SMA(F) Dimensions (mm) 35 x 6 x 5 Termination Ag (environmental-friendly Pb free) Material Ceramic Environmental Operation Temperature -40°C to 85°C Storage Temperature -40°C to 105°C Relative Humidity Non-condensing 65°C 95% RH RoHs Compliant Yes *Ground plane size 110x40 mm Electrical Specifications - Antenna* Polarization RHCP Axial ratio Max 3.0dB@zenith Input Voltage Min:1.8V Typ.: 3.0V Max: 5.5V Gain Typ. -1.5dBic @ Zenith Mechanical Specifications - Antenna Dimensions (mm) 25 x 25 x 4 Connection SMT via solder pads Environmental Specifications - Antenna Operation Temperature -40°C to 85°C Storage Temperature -40°C to + 85°C Relative Humidity 40% to 95%
SPE-14-8-103/A/MC Page 5 of 25 Electrical Specifications - LNA* Frequency Range 1575.42 ± 1.023 MHz Output Impedance 50Ω Outer Band Attenuation F0=1575.42MHz F0±30MHz 5dB min F0±50MHz 25dB min F0±100MHz 30dB min Pout at 1dB Gain Compression point -7 dBm Typ. Output VSWR 2.0 Max LNA Gain, Power Consumption and Noise Figure* Voltage LNA Gain (Typ) Power Consumption(mA) Typ Noise Figure(Typ) Min 1.8V 20dB 4.5mA 2.8dB Typ 3.0V 28dB 9mA 2.7dB Max 5.5V 30dB 18mA 3.0dB Electrical Specifications – Overall* Frequency Range 1575.42MHz +/- 1.023 MHz Gain At 90° at 3.0V 26.5±4dBi Output Impedance 50Ω VSWR 2.0 Max. *Ground plane size 110x40 mm
Figure 2. (a)PA.25 Cellular antenna Return Loss and VSWR test setup; (b) Peak gain, Average gain,
3.1 Return Loss
Figure 3. Return Loss of the PA.25 Cellular Antenna
3.2 Efficiency
Figure 4. Efficiency of the PA.25 Cellular Antenna
3.3 Peak Gain
Figure 5. Peak Gain of the PA.25 Cellular Antenna
3.4 Average Gain
Figure 6. Average Gain of the PA.25 Cellular Antenna
SPE-14-8-103/A/MC Page 9 of 25 3.5 3D Radiation Pattern
Figure 7. 3D Radiation Pattern of the PA.25 Cellular Antenna
SPE-14-8-103/A/MC Page 11 of 25 -45 -35 -25 -15 120 150 180 210 240 270 300 330 (dBi) 880MHz 960MHz 1710MHz 1880MHz -45 -35 -25 -15 120 150 180 210 240 270 300 330 (dBi) 1850MHz 1990MHz 2110MHz 2170MHz 3.6 2D Radiation Pattern X-Y plane Y Y X X
SPE-14-8-103/A/MC Page 12 of 25 -45 -35 -25 -15 120 150 180 210 240 270 300 330 (dBi) 880MHz 960MHz 1710MHz 1880MHz -45 -35 -25 -15 120 150 180 210 240 270 300 330 (dBi) 1850MHz 1990MHz 2110MHz 2170MHz Y-Z plane Y Y Z Z
Figure 8. 2D Radiation Pattern of the PA.25 cellular antenna
Figure 9. LNA Gain and Out Band Rejection @3.0V
Figure 10. LNA Noise figure @3.0V
4.3 GPS Antenna Radiation Pattern
Figure 11. X-Z plane
Figure 12. Y-Z plane
Figure 13. X-Y plane
Figure 15. Mechanical Drawing of the PA.25 Antenna.
Figure 19. EVB Dimension of MAT.03A Antenna
Figure 20. Recommended matching circuit
SPE-14-8-103/A/MC Page 24 of 25 MAT.03A EPE Foam PE Bag 1305 XX-YYPA-25 MAT.03A 9. Packaging
- Recommended Reflow Temperature Profile
Figure 21. Temperature profile for the assembly process in reflow ovens specifications and product descriptions at any time without notice . Taoglas reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express pe rmission is strictly prohibited. Copyright © 2014, Taoglas Ltd.