SP.1615.25.4.A.02

## **Specification** 

Part No. : **SP.1615.25.4.A.02** 

Product Name : Globalstar 25mm 1615Mhz Embedded Ceramic Patch Antenna 

Features : 25mm*25mm*4mm Globalstar Approved Pin Mount LHCP RoHS Compliant 

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## **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 an efficiency of nearly 80% at 1615 MHz, the antenna exhibits excellent upper hemisphere radiation pattern stability. Axial ratio is less than 3 on antenna operational angles, with a minimum axial ratio of 0.54 at zenith. The SP.1615.25.4.A.02 gain and 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 necessary. There is a minimum order quantity and possible NRE for a custom solution. Contact your regional Taoglas office for support. 

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## **2. Specification Table** 

|Parameter<br>~~Po~~|Specification<br>~~Po~~|**Note**s<br>~~Po~~|
|---|---|---|
|Range Of Receiving<br>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|
|Peak Gain|5 dBi||
|Polarization|LHCP|Left Hand Circular Polarization|
|Axial Ratio|3 Max. @ Zenith||
|Impedance|50 Ohm||
|Weight|5g||
|Frequency Temperature<br>Coefficient（τf）|-40°C to +105°C|0± 20ppm / °C|
|Operating Temperature|-40°C to +105°C||



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## **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, 

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## **3.5 Axial Ratio** 

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## **4. Mechanical Drawing** 

## **4.1 Antenna** 

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## **4.2 SPD.25A Evaluation Board** 

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## **4.3 PCB Footprint Recommendation** 

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## **5. Packaging** 

50 pieces per tray 

200 pieces per inner carton 

800 pieces per outer carton 

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Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to 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 permission is strictly prohibited. 

Copyright © Taoglas Ltd. 

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