CGGBP.35.3.A.02

+OD ep < Y) 0) + (© C) 

|1.|Introduction|3|
|---|---|---|
|2.|Specifications|4|
|3.|Antenna Characteristics|9|
|4.|Radiation Patterns|10|
|5.|Mechanical Drawing|14|
|6.|CGGBPD.35.B Evaluation Board|16|
|7.|PCB Footprint Recommendation|17|
|8.|Packaging|18|
||Changelog|19|



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 

This CGGBP.35 35mm*35mm embedded ceramic GPS/GLONASS/Galileo/ BeiDou patch antenna has a wide band of operation, leading to excellent gain and radiation pattern stability on all three GNSS system bands. The CGGBP.35.3 is ideal for devices where height may be at a premium, at just 3mm this low profile patch antenna can be placed in areas where thicker antennas may not fit. 

Typical Applications Include: 

- Wearables -      Navigation -      Transportation - RTK 

Compared to using a smaller antenna, this will translate into the GNSS system having much higher location accuracy, improved reliability of lock in urban areas, better signal reception, with more satellites acquired and a quicker time to first fix. 

The patch is mounted via pin and double-sided adhesive. This antenna has been manufactured in an IATF16969 approved facility. 

While the antenna will operate well in most device environments (Note cannot be covered with metal enclosure), tuning and further optimization of this antenna to different ground-planes and enclosures can be done if required, also including a pin length change. These changes would be subject to possible NRE and a minimum order quantity. For further information contact your regional Taoglas customer support team 

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## **2.** Specifications 

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|**GNSS Frequency Band**|**GNSS Frequency Band**|**GNSS Frequency Band**|**GNSS Frequency Band**|**GNSS Frequency Band**|**GNSS Frequency Band**|||
|---|---|---|---|---|---|---|---|
|**GPS/QZSS**|**L1**<br>**1575.42MHz**|**L2**<br>**1227.6MHz**|**L5**<br>**1176.45MHz**|**L6**<br>**1278.75MHz**||||
||`■`|□|□|□||||
|**GLONASS**|**L5R**<br>**1176.45MHz**|**L3PT**<br>**1201.5MHz**|**L2PT**<br>**1246MHz**|**L1CR**<br>**1575.42MHz**|**L1PT**<br>**1602MHz**|||
||□|□|□|`■`|`■`|||
|**Galileo**|**E5a**<br>**1176.45MHz**|**E5b**<br>**1201.5MHz**|**E4**<br>**1215MHz**|**E3**<br>**1256MHz**|**E6**<br>**1278.75MHz**|**E2**<br>**1561MHz**|**L1**<br>**1575.42MHz**|
||□|□|□|□|□|`■`|`■`|
|**BeiDou**|**B1**<br>**1561MHz**|**B2**<br>**1207.14MHz**|**B3**<br>**1268.52MHz**|||||
||`■`|□|□|||||
|**Compass**|**E5B(B2)/ E6(B3)**<br>**1268.56MHz**|**E2(B1)**<br>**1561MHz**||||||
||□|`■`||||||
|**SBAS**|**Omnistar**<br>**1542.5MHz**|**WAAS/EGN OS**<br>**1575.42MHz**||||||
||□|`■`||||||



|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|**GNSS Electrical**|
|---|---|---|---|
|**Frequency (MHz)**|**1561**|**1575.42**|**1602**|
|Return Loss (dB)|-30|-18|-13|
|Efficiency (%)|63|65.6|67|
|Average Gain (dB)|-2.01|-1.83|-1.74|
|Peak Gain at Zenith (dBi)|4.05|3.82|3.97|
|Polarization|RHCP|||
|Impedance(Ω)|50|||



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**Field Test Result with 70*70mm ground plane** 

|**Field Test Result with 70*70mm ground plane**|**Field Test Result with 70*70mm ground plane**|**Field Test Result with 70*70mm ground plane**|**Field Test Result with 70*70mm ground plane**|**Field Test Result with 70*70mm ground plane**|
|---|---|---|---|---|
|**Frequency**|**GPS L1**|**Galileo E1**|**GLONASS G1**|**BeiDou B1I**|
||**1563-1587**|**1559-1591**|**1598-1605**|**1559-1563**|
|Carrier-to-Noise Values(dB-<br>Hz)|41.7|38.2|40.1|40.2|
|2*DRMS Positioning<br>Accuracy (cm)**without** **RTK**|83|83|83|83|
|2*DRMS Positioning<br>Accuracy (cm)**with** **RTK**|1.4|1.4|1.4|1.4|
|TTFF(s)|25.4|25.4|25.4|25.4|
|Group Delay @ Zenith<br>Variation Across Single<br>Constellation(ns)|3.2|3.2|3.2|3.2|
|Phase Centre Offset PCO<br>(cm)|3.5|3.5|3.5|3.5|
|Phase Centre Variation<br>PCV (mm)|35|35|35|35|
|Axial Ratio (dB)|2|2|2|2|



*All outdoor measurements performed on the roof top of the Taoglas R&D Labs facility in Dublin Ireland. 

** Recommended Minimum C/No for Standard Precision Acquisition/ Tracking (dB-Hz): 26-30/ 12-15. 

***Data Measured Free Space. 

****Group Delay, PCO, PCV and Axial Ratio values includes Active Circuitry. *****Ublox C099-F9P application board is used for Field test Measurements. 

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||**Mechanical**|
|---|---|
|Dimensions|35 x 35 x 3mm|
|Material|Ceramic|
|Pin Diameter|0.9mm|
|Pin Length|2.4mm|
|Weight|13.5g|
||**Environmental**<br><br><br>|
|Temperature Range|~~E~~<br>~~i~~<br>~~l~~<br>-40°C to 85°C|
|Humidity|Non-condensing 65°C 95% RH|



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## **3.** Antenna Characteristics 

## **3.1** Return Loss 

## **3.2** Efficiency 

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


## **3.4** Peak Gain 

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dBi<br>**----- End of picture text -----**<br>


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**3.5** Axial Ratio @ L1 

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20<br>L1 Phi=0 hsGO<br>19<br>L1 Phi=90 ahGO 18<br>L SC<br>17<br>esOO 16<br>es 15 OO<br>es GOGO 14 GOOGO<br>(OO<br>13<br>esOO 12<br>eses eGGO 1110 (QOGO<br>es(OO 9<br>es sD 8 (OO<br>Rsesesesa OOO(OOeseesDeeGO 76543 (CO(OO<br>es 2 ee ee ee ee<br>ee 1 eee<br>ee<br>0<br>-80 -60 -40 -20 0 20 40 60 80<br>Degrees [˚]<br>Axial Ratio [dB]<br>**----- End of picture text -----**<br>


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## **4.** Radiation Patterns 

**4.1** Test Setup – on 70*70mm Ground Plane |[of] 

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4.2 1561MHz 3D and 2D Radiation Patterns<br>**----- End of picture text -----**<br>


## XY Plane 

## XZ Plane 

## YZ Plane 

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## **4.3** 1575.42MHz 3D and 2D Radiation Patterns 

## XY Plane 

## XZ Plane 

## YZ Plane 

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4.4 1602MHz 3D and 2D Radiation Patterns<br>**----- End of picture text -----**<br>


## XY Plane 

## XZ Plane 

## YZ Plane 

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## 5. Mechanical Drawing (Units:mm) 

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5.2 Adhesive Thickness<br>**----- End of picture text -----**<br>


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## **6.** CGGBPD.35.B Evaluation Board(unit:mm) 

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6.1 Evaluation Board Drawing<br>**----- End of picture text -----**<br>


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## **7.** PCB Footprint Recommendation 

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## **8.** Packaging 

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## Changelog for the datasheet 

**SPE-15-8-010 – CGGBP.35.3.A.02** 

**Revision: C (Current Version)** Date: 2021-06-09 Changes: Updated pin length to 2.4mm Updated mechanical drawing Changes Made by: Dan Cantwell 

## **Previous Revisions** 

**Revision: B** Date: 2020-03-18 Changes: Updated Data Changes Made by: Jack Conroy 

**Revision: A (Original First Release)** Date: 2017-10-11 Notes: Initial Datasheet Release Author: Jack Conroy 

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© Taoglas 

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