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SPE-14-8-104/B/SS Page 1 of 16 SPECIFICATION Product Name : Globalstar 25mm 1615Mhz 4dBi Embedded Ceramic Patch Antenna Features : 25mm*25mm*4mm Globalstar Approved Pin Mount 4dBi Peak Gain LHCP RoHS Compliant
SPE-14-8-104/B/SS Page 2 of 16 1. Introduction This miniaturized 25mm square ceramic patch antenna is mounted via pin and double-sided adhesive and is the optimal embedded antenna solution for mobile Globalstar applications. The antenna is tuned to a reference 60mm square ground-plane. With a peak gain of 4dBi, the antenna exhibits excellent upper hemisphere radiation pattern stability. A xial ratio is less than 3 on antenna operational angles, with a directivity characteristics have been analyzed and approved by Globalstar. Different device ground -planes and housing environments may require a custom tuned antenna. Taoglas provides testing and support services to characterize this antenna in your device and determine whether a custom tuned solution is ne cessary. There is a minimum order quantity and possible NRE for a custom solution. Contact your regional Taoglas office for support.
SPE-14-8-104/B/SS Page 3 of 16 2. Specification Table Parameter Specification Notes Range Of Receiving Frequency 1615.68 ± 4.1 MHz Center Frequency 1615 MHz ± 3 MHz With 60×60mm GND Plane Bandwidth 26 MHz min Return Loss@-10 dB VSWR 1.5 max Center Frequency Gain at Zenith 4 dBi typ. Polarization LHCP Left Hand Circular Polarization Axial Ratio 3 Max. @ Zenith Impedance 50 Ohm Weight 5g Frequency Temperature Coefficient（τf） -40°C to +105°C 0± 20ppm / °C Operating Temperature -40°C to +105°C
SPE-14-8-104/B/SS Page 4 of 16 3. Electrical Specifications
3.1 Return Loss
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3.2 Smith Chart
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3.3 VSWR
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3.4 Efficiency
3.5 Peak Gain
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3.6 Radiation Pattern
The antenna was test in a ceritified ETS Anochoic Chamber, the setup is as below, Y X Z
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3.4.1 XZ-Plane
3.4.2 YZ-Plane
Z Z X Y
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3.4.3 XY-Plane
Y X
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3.5 Axial Ratio
SPE-14-8-104/B/SS Page 12 of 16 4. Mechanical Drawing
4.1 Antenna
SPE-14-8-104/B/SS Page 13 of 16 4.2 SPD.25A Evaluation Board
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4.3 PCB Footprint Recommendation
SPE-14-8-104/B/SS Page 15 of 16 5. Packaging 50 pieces per tray 200 pieces per inner carton 800 pieces per outer carton
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