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SGGP254B
RF Antenna, 1.596 to 1.61GHz, Right Hand Circular, 2.57dBi, SMD, SSGP Series
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- Manufacturer: TAOGLAS
- Product type:
- Gain: 2.57dBi
- SVHC: No SVHC (21-Jan-2025)
- VSWR: -
- Input Power: -
- Antenna Type: GPS / GNSS / Glonass / Galileo / BeiDou / IRNSS / L-Band / QZSS / SBAS
- Frequency Max: 1.61GHz
- Frequency Min: 1.596GHz
- Product Range: SSGP Series
- Input Impedance: 50ohm
- Antenna Mounting: SMD
- Antenna Polarisation: Right Hand Circular
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 1.98 € |
| Current stock | 200+ |
| Lead time | 30 days |
Datasheet
AS a” > TAOGLAS. ## ee +Qd coan Y) (O + (O C) **Part No: SGGP254B** **Description** GPS/GLONASS/GALILEO/BEIDOU Ceramic SMD Patch Antenna **Features:** SMD Mount Ceramic Patch Antenna Coverage: • B1I: 1561 MHz • L1/E1: 1575.42 MHz • G1: 1602 MHz Dimension: 25 x 25 x 4mm Includes Additional Solder Mask RoHS & Reach Compliant SPE-25-8-117-A www.taoglas.com **==> picture [358 x 244] intentionally omitted <==** **----- Start of picture text -----**<br> 1. Introduction 3<br>2. Specification 4<br>3. Mechanical Drawing 6<br>4. Packaging 7<br>5. Antenna Integration Guide 8<br>6. Antenna Characteristics 15<br>7. Radiation Patterns 19<br>8. Solder Reflow Profile 23<br>Changelog 24<br>**----- End of picture text -----**<br> 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. 2 www.taoglas.com SPE-25-8-117-A The SGGP254B is a compact ceramic GPS/GLONASS/GALILEO/BEIDOU passive patch antenna, measuring just 25mm x 25mm with a low-profile height of 4mm. Its small form factor makes it ideal for space-constrained applications such as compact telematics devices, vehicle tracking and fleet management systems, wearables, and navigation devices. The antenna is optimized for a 50mm x 50mm ground plane, operating at 1575.42MHz, 1602MHz and 1561MHz with a peak gain of 2.4dBi gain, 2.57dBi gain and 0.78dBi gain. Designed for SMT mounting, the ceramic patch includes an additional solder mask to enhance durability and prevent cracking due to heat expansion during high-volume, cost-sensitive assembly processes. Typical applications include: - Vehicle Tracking and Fleet Management Systems - Wearables - Navigation Devices The SSGP Series can be manufactured in a TS16949 first-tier automotive-approved facility and tested to AECQ200 certification if required. Further to this, full PPAP and IMDS documentation can be provided upon request. Please discuss your quality and reliability requirements with our team prior to ordering. Taoglas also offers custom tuning services based on minimum order quantities, contact your regional Taoglas customer support team for further information. 3 www.taoglas.com SPE-25-8-117-A |**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**| |---|---|---|---|---|---| |**GPS**|**L1**<br>**1575.42 MHz**|**L2**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**||| ||◼||||| |**GLONASS**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**||| ||◼||||| |**Galileo**|**E1**<br>**1575.24 MHz**|**E5a**<br>**1176.45 MHz**|**E5b**<br>**1201.5 MHz**|**E6**<br>**1278.75 MHz**|| ||◼||||| |**BeiDou**|**B1C**<br>**1575.42 MHz**|**B1I**<br>**1561 MHz**|**B2a**<br>**1176.45 MHz**|**B2b**<br>**1207.14 MHz**|**B3**<br>**1268.52 MHz**| ||◼|◼|||| |**L-Band**|**L-Band**<br>**1542 MHz**||||| ||||||| |**QZSS (Regional)**|**L1**<br>**1575.42 MHz**|**L2C**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**|**L6**<br>**1278.75e6**|| ||◼||||| |**IRNSS (Regional)**|**L5**<br>**1176.45 MHz**||||| ||||||| |**SBAS**|**L1/E1/B1**<br>**1575.42 MHz**|**L5/B2a/E5a**<br>**1176.45 MHz**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**| ||◼||◼||| GNSS Bands and Constellations 4 www.taoglas.com SPE-25-8-117-A ## **GNSS Electrical** |**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**| |---|---|---|---| ||||| ||**B1I – 1561 MHz**|**L1 - 1575.42 MHz**|**G1 – 1602 MHz**| |**Frequency (MHz)**|||| ||||| ||**1559-1565**|**1565-1586**|**1596-1610**| ||||| ||||| |**Efficiency (%)**|39.52|57.24|51.48| ||||| ||||| |**Average Gain (dB)**|-4.03|-2.42|-2.88| ||||| ||||| |**Peak Gain (dBi)**|0.78|2.40|2.57| ||||| ||||| |**Polarization**|RHCP||| ||||| ||||| |**Impedance**|50 Ω||| ||||| ||||| ||***Tested on a 50x50mm Ground Plane**||| ||||| ## **Mechanical** |**Mechanical**|**Mechanical**| |---|---| ||| |**Dimensions**|25mm x 25mm x 4mm| ||| ||| |**Weight**|10g ± 3%| ||| ||| |**Material**|Ceramic| ||| ||**Environmental**| |---|---| ||| |**Operation Temperature**|-40°C to 105°C| ||| ||| |**Storage Temperature**|-40°C to 105°C| ||| ||| |**Relative Humidity**|Non-condensing 65°C 95% RH| ||| ||| |**Moisture Sensitivity**|3<br>(168 hours)| ||| 5 www.taoglas.com SPE-25-8-117-A ## **3.** Mechanical Drawing ey 6 www.taoglas.com SPE-25-8-117-A 200 pcs/ Reel/ Vacuum bag 200 pcs / Box Box: 350x340x67mm Weight: 2.63 ±3% Kg 800 pcs / Carton Carton: 370x370x300mm Weight: 11.3 ±3% Kg 7 www.taoglas.com SPE-25-8-117-A The following is an example on how to integrate the SGGP254B into a design. This antenna has 10 pins, where one pin is used for the RF Feed. Taoglas recommends using a minimum of 50x50mm ground plane (PCB) to ensure optimal performance. Top view of PCB reference design. 8 www.taoglas.com SPE-25-8-117-A ## **5.1** Schematic and Symbol Definition wy Above is a 3D model of the SGGP254B on a PCB reference design. The circuit symbol for the SGGP254B is shown below. The antenna has 10 pins as indicated below. |**Pin**|**Description**| |---|---| ||| |1|RF Feed| |2-10|Ground| 9 www.taoglas.com SPE-25-8-117-A ## **5.2** Antenna Footprint ea |**Pin**<br>~~es~~|**Description**<br>~~es~~| |---|---| |1|RF Feed| |2-10|Ground| 10 www.taoglas.com SPE-25-8-117-A ## Top Solder Paste Top Solder Mask 11 www.taoglas.com SPE-25-8-117-A ## Copper Clearance for SGGP254B The footprint and clearance on the PCB must comply with the antenna’s specification. The PCB layout shown in the diagrams below demonstrates the SGGP254B clearance area. The copper keep out area applies to the top layer and all internal layers. There should be a 3.5x3mm copper clearance area around RF Feed pad. - ii 12 www.taoglas.com SPE-25-8-117-A ## Antenna Integration The SGGP254B should be placed in the centre, as close to the edge on the long side of the PCB as possible, to take advantage of the ground plane. The RF trace must maintain a 50 Ohm transmission line. Ground vias should be placed around the RF trace. SGGP254B antenna mounted on a PCB reference design, showing transmission lines and integration notes. 13 www.taoglas.com SPE-25-8-117-A ## Final Integration The top side image shown below highlights the antenna transmission line. Taoglas recommends using a minimum of 50x50mm ground plane (PCB) to ensure optimal performance. Top Side (SGGP254B placement on 50x50mm PCB reference design Bottom Side Bottom Side 14 www.taoglas.com SPE-25-8-117-A ## Test Setup VNA Test Set-up 15 www.taoglas.com SPE-25-8-117-A ## Return Loss ## VSWR 16 www.taoglas.com SPE-25-8-117-A ## Efficiency ## Average Gain 17 www.taoglas.com SPE-25-8-117-A ## Peak Gain ## Axial Ratio 18 www.taoglas.com SPE-25-8-117-A ## Test Setup Chamber Test Set-up 19 www.taoglas.com SPE-25-8-117-A ## Patterns at 1561 MHz ## XZ Plane ## YZ Plane ## XY Plane 20 www.taoglas.com SPE-25-8-117-A ## Patterns at 1575 MHz ## XZ Plane ## YZ Plane ## XY Plane 21 www.taoglas.com SPE-25-8-117-A ## Patterns at 1602 MHz ## XZ Plane ## YZ Plane **==> picture [44 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> XY Plane<br>**----- End of picture text -----**<br> 22 www.taoglas.com SPE-25-8-117-A The SGGP254B can be assembled by following the recommended soldering temperatures are as follows: *Temperatures listed within a tolerance of +/- 10º C Smaller components are typically mounted on the first pass, however, we do advise mounting the SGGP254B when placing larger components on the board during subsequent reflows. Note: Soldering flux classified ROL0 under IPC J-STD-004 is recommended 23 www.taoglas.com SPE-25-8-117-A Changelog for the datasheet **SPE-25-8-117 – SGGP254B** **Revision: A (Original First Release)** Date: 2025-04-09 Notes: Initial Release Author: Gary West **==> picture [483 x 534] intentionally omitted <==** 24 www.taoglas.com SPE-25-8-117-A 25 www.taoglas.com SPE-25-8-117-A
Updated at June 9, 2026
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