GGBLA.125.A

Antenna, Loop, 1.164 GHz to 1.602 GHz, -1.7 dB, Linear, SMD

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Manufacturer: TAOGLAS
Product type:
Gain: -1.7dB
SVHC: To Be Advised
VSWR: -
Input Power: -
Antenna Type: Loop
Frequency Max: 1.602GHz
Frequency Min: 1.164GHz
Product Range: -
Input Impedance: 50ohm
Antenna Mounting: SMD
Antenna Polarisation: Linear

Delivery and price
Units per pack	250
Price	2.51 €
Current stock	200+
Lead time	30 days

Datasheet

## a) | ed 7 =) Y) a) +) (O C) 

|1.|Introduction|3|
|---|---|---|
|2.|Specifications|4|
|3.|Antenna Characteristics|6|
|4.|2D Radiation Patterns|8|
|5.|3D Radiation Patterns|10|
|6.|Field Test Results|11|
|7.|Mechanical Drawing|12|
|8.|Packaging|17|
||Changelog|18|



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. 

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## **1.** Introduction 

The Taoglas GGBLA.125.A is a unique embedded ceramic miniature loop antenna designed for GPS L1,L2, L5 and L6 applications. It also covers all GNSS requirements including GLONASS (L1PT, L1CR, L5R), Galileo (E1, E2, E5a, E5b, E6), BeiDou (B1, B2, B3), IRNSS(L5) & QZSS Frequencies. 

With dimensions of just 10 x 3.2 x 1.5mm, a keep out area of just 15 x 9.8mm on the PCB, the GGBLA.125 makes an ideal multi band GNSS antenna solution for compact high precision automotive navigation or asset tracking devices where board space is at a premium. An SMD component, delivered on tape and reel, the middle edge-of-board mounted antenna, has an omnidirectional radiation pattern that allows customers to use an omnidirectional antenna in devices where orientation of the product may be unknown, or subject to frequent movement. 

The wide bandwidth maintains high efficiency and reception stability on all GNSS bands from 1164MHz to 1602MHz. The GGBLA.125 exhibits efficiencies of between 60% and 80%, depending on the band used. With a peak gain of 2.6-3.6dBi, the gain performance compares with the ranges of much larger patch antennas of up to 18 x 18mm. Based on the loop antenna electrical effect, this antenna works best when placed in the center of the edge of the board. 

Typical Applications Include: :: Navigation & RTK Systems :: Transportation, Marine & Agriculture :: Autonomous Vehicles :: UAVs and Robotics :: IOT Devices :: Location based applications 

As with all onboard SMD antennas, care must be taken to ensure the device ground-plane layout and antenna matching has been done correctly. At any of our global design and test facilities, Taoglas can offer professional Gerber review, transmission line design, general integration support and final matching services of the GGBLA.125.A on your device board. 

Contact your regional Taoglas customer support team for more information about this product, its’ integration or immediate support. 

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## **2.** Specifications 

|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|
|---|---|---|---|---|---|---|
|**GPS**|L1|L2|L5|L6|||
||▓|▓|▓|▓|||
|**GLONASS**|G1|G2|G3||||
||▓|▓|▓||||
|**Galileo**|E1|E5a|E5b|E6|||
||▓|▓|▓|▓|||
|**BeiDou**|B1|B2a|B2b|B3|||
||▓|▓|▓|▓|||
|**QZSS**<br>**(Regional)**|L1|L2C|L5|L6|||
||▓|▓|▓|▓|||
|**IRNSS**<br>**(Regional)**|L5||||||
||▓||||||
|**SBAS**|L1/E1/B1|L5/B2a/E5a|G1|G2|G3||
||▓|▓|▓|▓|▓||



*SBAS systems: WASS(L1/L5), EGNOSS(E1/E5a), SDCM(G1/G2/G3), SNAS(B1/B2a), GAGAN(L1/L5), QZSS(L1/L5), KAZZ(L1/L5). 

## GNSS Bands and Constellations 

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## **GNSS Electrical** 

|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|
|---|---|---|---|---|---|---|
|**Frequency (MHz)**|**GPS L5/**<br>**Galileo E5a**|**GPS L2**|**GPS L6/**<br>**Galileo E6**|**BeiDou B1/**<br>**Galileo E2**|**GPS L1/**<br>**Galileo E1**|**GLONASS L1**|
||**1176.45**|**1227.6**|**1278.8**|**1561**|**1575.42**|**1602**|
|Efficiency (%)|80 Typ.|80 Typ.|70 Typ.|60 Typ.|60 Typ.|60Typ.|
|Average Gain (dB)|-0.7|-0.8|-1.2|-2.0|-1.8|-1.7|
|Peak Gain (dBi)|3.6|3.3|3.3|2.6|2.8|3.0|
|Return loss (dB)|< -10|< -10|< -5|< -10|< -10|< -10|
|Group Delay|1|1|1.2|3|3|3|
|PCO (cm)|1.46|2.44|2.3|0.34|0.34|0.40|
|PCV (cm)|9.8|10.3|9.5|7|7.2|7.2|
|Polarization|Linear||||||
|Impedance|50Ω||||||
||**Mechanical**||||||
|Dimensions (mm)|10 x 3.2 x 1.5 mm||||||
|Weight (g)|0.17 g||||||
||**Environmental**||||||
|Operating Temperature|-40°C to 85°C||||||
|Storage Temperature|-25°C to 85°C||||||
|Relative Humidity|20°C to 70°C||||||
|Moisture Sensitivity Level (MSL)|3 (168 Hours)||||||



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## **3.** Antenna Characteristics 

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3.1 Return Loss<br>**----- End of picture text -----**<br>


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3.2 Efficiency<br>**----- End of picture text -----**<br>


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3.3 Average Gain<br>**----- End of picture text -----**<br>


## **3.4** Peak Gain 

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## **4.** 2D Radiation Patterns 

**4.** 

**4.1** Test Setup – on 80*40mm Evaluation Board 

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Y<br>X<br>Z<br>**----- End of picture text -----**<br>


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**4.2** 2D Plots 

## XY Plane 

## XZ Plane 

## YZ Plane 

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X  X<br>) 330 30<br>}<br>:<br>f<br>Y  Y<br>1176 45MHz<br>12 240 120<br>° —1227 6MHz ee 1575.<br>15¢ 1278.8MHz 2 150<br>Z  Z<br>: 10.<br>¢ 0 N 0<br>| 20<br>X  | X<br>{ 9 270 , 45 9<br>1176.45MHz<br>y, —1176.45M \<br>120 240 \ f 120<br>1227 6MHZ XQ TK ts76<br>1278. 8MHz<br>‘sc m1 50<br>180 aej 780 (dBi<br>Z<br>Z<br>10<br>0<br>om \ soo if x<br>4 3<br>Y  Y<br>**----- End of picture text -----**<br>


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## **5.** 3D Radiation Patterns 

## **5.1** GGBLA.125.A 

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## **6.** Field Test Results 

## **4.** 

## **6.1** Rooftop test 

In this section Taoglas will present the field test result for GGBLA.125A antenna. The test was performed when the antenna was mounted on a static rooftop test set up in an open sky environment for at least 6 hours. 

Taoglas will show the field test results using the following receiver: 

## **1. U-blox ZED-F9P** 

## Receiver features: 

- Multi-band GNSS: 184-channel GPS L1C/A L2C, GLONASS: L1OF L2OF, Galileo: E1B/C E5b, BeiDou: B1I B2I, QZSS: L1C/A L2C 

- Multi ‑ band RTK with fast convergence times and reliable performance 

- Nav. update rate RTK up to 20 Hz 

- Position accuracy = RTK 0.01 m + 1 ppm CEP 

|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|**Positioning Accuracy Table(2D Accuracy)**<br>~~ee~~|
|---|---|---|---|---|---|
|**Test**<br>**Condition**<br>~~ee~~|**Correction**<br>**Service**<br>~~ee~~|**CEP (50%)**<br>~~ee~~|**DRMS (68%)**<br>~~ee~~|**2DRMS (95-98.2%)**<br>~~ee~~|**TTFF (sec)**<br>~~ee~~|
|**EVB**|RTK DISABLED|106.72 cm|134.17 cm|268.34 cm|32|
||RTL ENABLED|10.59 cm|12.88 cm|25.75 cm|32|



## RTK Availability 

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No RTK<br>Float<br>Fixed<br>**----- End of picture text -----**<br>


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SPE-19-8-045-F 

## **7.** Mechanical Drawing (Units: mm) 

## **7.1** Antenna Drawing |[of] 

**7.2** Antenna Dimensions Bottom Pin and View Definition – Back View Ce 

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## Antenna Footprint - Top Viewop 

## Host PCB Layout – Top View 

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## Clearance Area ~~ee~~ 

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## Evaluation Board 

||**Name**|
|---|---|
|**1**|GGBLA.125.A Antenna|
|**2**|GGBLAD.125.A EVB PCB|
|**3**|0 hm Resistor (0402)|
|**4**|1.2pF Capacitor (0402)|
|**5**|3.9pF Capacitor (0402)|
|**6**|SMA(F) ST PCB|



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## Evaluation Board Matching Circuit ~~Be~~ 

|**Matching Circuit**<br>~~ee~~|**Matching Circuit**<br>~~ee~~|
|---|---|
|**Component**|**Component Values**|
|**R1**|0 ohm|
|**R2**|0 ohm|
|**R3**|0 ohm|
|**C1**|1.2 pF|
|**C2**|3.9 pF|



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SPE-19-8-045-F 

## **8.** Packaging 

2000pcs GGBLA.125.A per Tape & Reel Dimensions - Ø330*28.4 Weight - 1Kg 

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28.4mm<br>Ø330mm<br>**----- End of picture text -----**<br>


2000pcs GGBLA.125.A per carton Dimensions - 350*340*47mm Weight - 1.2Kg 

10000pcs GGBLA.125.A per carton Dimensions - 360*370*275mm Weight - 6.8Kg 

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47mm<br>350mm<br>340mm<br>275mm<br>360mm  370mm<br>**----- End of picture text -----**<br>


Pallet Dimensions: 1100*1100*1300mm 36 Cartons Per Pallet 9 Cartons Per Layer, 4 Layers 

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1290mm<br>1100mm<br>1100mm<br>**----- End of picture text -----**<br>


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Changelog for the datasheet<br>SPE-19-8-045 – GGBLA.125.A<br>Revision: F (Current Version)<br>Date: 2021-09-09<br>Changes: Added MSL rating, updated frontpage font.<br>Changes Made by: Erik Landi<br>Previous Revisions<br>Revision: E<br>Date: 2021-05-06<br>Changes: Added L6 band to spec table.<br>Changes Made by: Gary West<br>Revision: D<br>Date: 2020-06-04<br>Changes: Added Field Test Results<br>Changes Made by: Victor Pinazo<br>Revision: C<br>Date: 2020-03-18<br>Changes: Modified RTK Table<br>Changes Made by: Yu Kai Yeung<br>Revision: B<br>Date: 2019-12-08<br>Changes: Added GNSS Frequency Matrix and RTK Data<br>Changes Made by: Yu Kai Yeung<br>Revision: A (Original First Release)<br>Date: 2019-04-04<br>Notes:  Initial Specification Release<br>Author: Yu Kai Yeung<br>**----- End of picture text -----**<br>


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Updated at June 9, 2026

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