ASGPR.25B.4.A.27

DRAFT SPECIFICATION PATENT PENDING Part No. : ASGPR.25B.4.A.27 Product Name : 25mm SMT 27dB Active GPS Patch Antenna with IPEX MHF Receptacle Features : Unique patent pending SMT GPS active patch High performance 27dB LNA Patch Size 25*25*4mm Ultra low power consumption RoHS compliant Photo SPE-11-8-095/A : Page 1 of 13 1.0 Introduction The patent pending revolutionary powerful active SMD GPS patch antenna allows for optimal performing GPS by combining the ceramic patch, SAW, LNA, and feed pad in one integral package. Horizontally mounted on a board as any other components, GPS device designers no longer need to compromise in performance. The right hand circular polarized patch is ideally matched to the GPS signal, tuned for maximum gain, minmal axial ratio. The SAW is placed in front of the LNA, helping prevent saturation due to nearby radio transmitters, and the possibility of radiated spurious emissions through other radio systems. The unique SMD structure enables pick and place and reflow soldering onto booards in high volumes, with highest reliablity, compared to traditional cabled solutions. All that is needed is to run a 50 Ohm co-planar waveguide to the SMD GPS receiver module. The patch antenna can be tuned for each device environment if necessary. SPE-11-8-095/A Page 2 of 13 2.0 Performance Measurement 2.1 Block Diagram This antenna system consists of two functional blocks, the LNA portion and the patch antenna. 3.0 Specification 3.1 Rated Environmental Conditions No Parameter Specification 3.1.1 Operation Temperature -40°C to + 85°C 3.1.2 Storage Temperature -40°C to + 85°C 3.1.3 Relative Humidity 40% to 95% 3.2 Electrical Specifications No Parameter Specification 3.2.1 Input Voltage Min:1.8V Typ.: 3.0V Max: 5.5V SPE-11-8-095/A Page 3 of 13 3.3 Electrical Specifications- Antenna(25*25*4mm) No Parameter Specification 3.3.1 Frequency Range 1575.42MHz +/- 1.023 MHz 3.3.2 Gain Typ. +1dBic @ Zenith 3.3.3 Polarization RHCP 3.3.4 Axial ratio Max 3.0dB@zenith 3.4 Electrical Specifications- LNA No Parameter 3.4.1 Frequency Range 3.4.2 Output Impedance Specification 1575.42 ± 1.023 MHz 50Ω F0=1575.42MHz 3.4.3 Outer Band Attenuation F0±30MHz 3dB min F0±50MHz 17dB min F0±100MHz 23dB min 3.4.4 Pout at 1dB Gain Compression point 3.4.5 Output VSWR -7 dBm Typ.@3V 2.0 Max LNA Gain, Power Consumption and Noise Figure Noise 3.4.6 Voltage LNA Gain(Typ) Power Consumption(mA) Typ Figure(Typ) Min 1.8V 21dB 4mA 2.7dB Typ 3.0V 27dB 8.5mA 2.7dB Max 5.5V 30dB 18.5mA 3.0dB SPE-11-8-095/A Page 4 of 13 3.5 LNA Gain and Out Band Rejection @3.0V SPE-11-8-095/A Page 5 of 13 3.6 LNA Noise Figure @3.0V 3.7 Connection No Parameter Specification 3.5.1 Connection IPEX Receptacle 3.8 Electrical Specifications- Overall No Parameter Specification 3.6.1 Frequency Range 1575.42MHz +/- 1.023 MHz 3.6.2 Gain At 90° at 3.0V 28±3dBic 3.6.3 Output Impedance 50Ω 3.6.4 VSWR 2.0 Max. SPE-11-8-095/A Page 6 of 13 4.0Technical drawing SPE-11-8-095/A Page 7 of 13 SPE-11-8-095/A Page 8 of 13 4.1 PCB Footprint SPE-11-8-095/A Page 9 of 13 5.0 Radiation patterns Radiation patterns SPE-11-8-095/A Page 10 of 13 SPE-11-8-095/A Page 11 of 13 SPE-11-8-095/A Page 12 of 13 6.0 Test Set-up SPE-11-8-095/A Page 13 of 13