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TFM.110A
RF Antenna, 1.606GHz, GNSS/LNA, 25dBi, SMD
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: TAOGLAS
- Product type:
- Gain: 25dBi
- SVHC: To Be Advised
- VSWR: -
- Input Power: -
- Antenna Type: GNSS / LNA
- Frequency Max: 1.606GHz
- Frequency Min: -
- Product Range: TFM Series
- Input Impedance: -
- Antenna Mounting: SMD
- Antenna Polarisation: -
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 15.56 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
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## **Multiband GNSS Front End**
**Part No: TFM.110A**
**Description:** |
Surface Mount GNSS Front End Active Electronics
Covering the full Multiband GNSS Spectrum excluding the L-Bands
**Features:**
Two-stage LNA providing >25 dB Gain across all bands Low Noise Figure: <3.5 dB in low bands and <4.0 dB in high bands Vin = +1.8 to +5.5 VDC
Easy to integrate surface-mount Dimensions: 15 x 15 x 2.7 mm
RoHS & Reach Compliant
SPE-20-8-103-A
www.taoglas.com
|1.|Introduction|3|
|---|---|---|
|2.|Specifications|4|
|3.|FEM Characteristics|5|
|4.|Mechanical Drawing|8|
|5.|Evaluation Board Drawing|9|
|6.|Antenna Integration Guide|10|
||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
The Taoglas TFM.110A is a surface-mount active electronics GNSS front end which covers L1/L2/L5 for multiband multi-constellation high-precision applications. The TFM.110A features a SAW/LNA/SAW/LNA topology in the signal path to prevent unwanted out-of-band interference from overdriving the GNSS LNAs or receiver. The SAW filters have been carefully selected and placed to provide excellent out-of-band rejection while also maintaining low noise figure.
Many currently available dual-band GNSS receivers require additional RF circuits between the antenna and the receiver to properly set the overall system noise figure. This requires additional development time for an otherwise simple integration. Many organizations don’t have the RF expertise to effectively design such a solution. The TFM.110 captures the required additional RF circuits in modular form, allowing the designer to simply place the TFM.110 between their GNSS antenna and GNSS receiver.
The TFM.110 offers > 25 dB gain across all applicable bands while maintaining a high Input P1dB of -25 dBm or better. Noise Figure is < 3.5 dB in the low bands and < 4.0 dB in the high bands. A wide input voltage of +1.8 to +5.5 VDC allows for easy integration in most GNSS systems.
TFM.110A Features & Benefits:
- Ease-of-integration – Single-package solution combines impedance matching, filter efficiency and low noise design for easy, drop-in use with any antenna or GNSS receiver
- Low-noise System Design – Integrated pre-filters deliver exceptional out-of-band rejection across multiple band configurations and neighboring interference to properly set noise figure
- Dual-gain Stage Architecture – Cascaded LNAs, pre-filters and optimized impedance matching deliver sufficient gain to the GNSS receiver without signal-to-noise overload
- Low-profile Form Factor – Small footprint and low-profile design saves valuable real estate without the need for external components and routing
- Accelerated Development Cycles – 2+ years of development by antenna and RF design experts, delivering the highest levels of integration, manufacturability and robustness in a single package
For further information, please contact your regional Taoglas customer support team.
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## **2.** Specifications
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|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|
|---|---|---|---|---|---|---|---|---|---|
|**Frequency (MHz)**|**1166**|**1176**|**1186**|**1197**|**1227**|**1249**|**1559**|**1575.42**|**1606**|
|Noise Figure (dB)*|2.9|2.7|2.6|2.5|3.1|3.1|3.3|3.1|3.6|
|Gain (dB)|29|30|30|31|30|31|27|26|25|
|Group Delay (ns)|22|20|18|19|17|23|16|16|23|
|Input P1dB (dBm)|-23|-24|-24|-24|-22|-23|-18|-18|-17|
|Input Return Loss (dB)|-10|-11|-12|-13|-11|-14|-11|-11|-13|
|Output Return Loss|-9|-9|-10|-14|-14|-17|-24|-31|-25|
|Vin|+1.8 to +5.5 VDC|||||||||
***Note: Tested on evaluation board. Board losses removed.**
|**Mechanical**|**Mechanical**|
|---|---|
|Height|2.76mm|
|Planar Dimension|15.50 x 15.50mm|
|Weight|--|
|**Environmental**||
|Temperature Range|-40°C to 85°C|
|RoHS Compliant|Yes|
|REACH Compliant|Yes|
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## **3.** FEM Characteristics
## **3.1** Input Return Loss |[4]
RF IN Return Loss
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0.00<br>-5.00<br>-10.00<br>-15.00<br>-20.00<br>-25.00<br>-30.00<br>-35.00<br>-40.00<br>1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700<br>Frequency (MHz)<br>S11 (dB)<br>**----- End of picture text -----**<br>
## **3.2** Output Return Loss |[4]
## RF OUT Return Loss
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0<br>-5<br>-10<br>-15<br>-20<br>-25<br>-30<br>-35<br>-40<br>-45<br>-50<br>1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700<br>Frequency (MHz)<br>S22 (dB)<br>**----- End of picture text -----**<br>
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## **3.3** Noise Figure |[4]
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6.00<br>5.50<br>5.00<br>4.50<br>4.00<br>3.50<br>3.00<br>2.50<br>2.00<br>1.50<br>1.00<br>0.50<br>0.00<br>1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700<br>Frequency (MHz)<br>Noise Figure (dB)<br>**----- End of picture text -----**<br>
## **3.4** In-Band Gain |[4]
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40<br>30<br>20<br>10<br>0<br>-10<br>-20<br>-30<br>-40<br>-50<br>1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700<br>Frequency (MHz)<br>S21 (dB)<br>**----- End of picture text -----**<br>
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3.5 Wideband Gain<br>40<br>30<br>20<br>10<br>0<br>-10<br>-20<br>-30<br>-40<br>-50<br>-60<br>-70<br>-80<br>-90<br>-100<br>-110<br>0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000<br>Frequency (MHz)<br> 3.6 Low Band Group Delay<br>New<br>50<br>45<br>40<br>35<br>30<br>25<br>20<br>15<br>10<br>5<br>0 Se i<br>1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700<br>Frequency (MHz)<br>S21 (dB)<br>Group Delay (ns)<br>**----- End of picture text -----**<br>
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## **4.** Mechanical Drawing
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1.800 26X<br>CL<br>1 26<br>CL<br>LAYOUT<br>ORIGIN<br>CL<br>CL<br>13 14<br> 15.50<br> 15.300 PAD<br>TOP VIEW CL CL NUMBERING<br>PCB FOOTPRINT<br>SIDE VIEW ORIGIN<br>CL<br>PIN 13 PIN 14<br>CL<br> 1.000 26X<br>PIN 1 PIN 26<br>BOTTOM VIEW<br>0.50 26X<br> 0.800 26X<br> 15.50<br> 13.20 2X<br> 1.100 24X<br> 2.76 MAX<br> 13.20 2X<br> 0.75 2X 0.800 26X<br>**----- End of picture text -----**<br>
## **BOTTOM VIEW SOLDER PAD DETAIL**
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**ISO VIEW**
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**5.** Eval Board Drawing
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## **6.** Antenna Integration Guide
## e
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## **6.1** Schematic Symbol and Pin Definitions
The circuit symbol for the TFM.110A is shown below. The front-end module has 26 pins as indicated below.
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Pin Description<br>Pe<br>1-11, 13-14, 16-24, 26 Ground<br>12 Signal Output<br>15 Voltage Input<br>25 Signal Input<br>**----- End of picture text -----**<br>
## **6.2** Antenna Integration Gudie
The TFM.110A should be placed as close to the signal input and output as possible to shorten the length of the transmission lines. The RF IN/OUT traces must maintain a 50 Ohm transmission line. A Pi Matching Network is recommended for the RF IN transmission line, the values and components for the matching circuit will depend on the tuning needed. Ground vias should be placed beside each ground pad and the DC Voltage input should be between +1.8 & +5.5 VDC. It's recommended that the DC Voltage input should be coupled with a 100pF Capacitor.
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## **6.3** PCB Clearance
The footprint and clearance on the PCB must comply with the front-end module's specification. The PCB layout shown in the diagram below demonstrates the TFM.110A clearance area for Pin 12 (RF OUT Pad) & Pin 25 (RF IN Pad). The copper keep out area only applies to the same layer the TFM110.A was placed.
Pin 12 (RF OUT PAD)
Pin 25 (RF IN PAD)
## **6.4** PCB Layout
The footprint and clearance on the PCB must comply with the front-end module's specification. The PCB layout shown in the diagram below demonstrates the TFM.110A footprint.
Topside
Bottom side
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## **6.5** Evaluation Board
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## **6.6** Evaluation Board Layout
The footprint and clearance on the PCB must comply with the front-end module's specification. The PCB layout shown in the diagram below demonstrates the TFM.110A footprint.
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Topside Bottom side
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## **6.7** Evaluation Board
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45mm<br>**----- End of picture text -----**<br>
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Topside<br>**----- End of picture text -----**<br>
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Bottom side<br>**----- End of picture text -----**<br>
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## **6.8** Demonstration Board
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## **6.9** Demonstration Board Layout
The footprint and clearance on the PCB must comply with the front-end module's specification. The PCB layout shown in the diagram below demonstrates the TFM.110A footprint. This is a typical implementation.
Topside
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## **6.10** Demonstration Board
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## Changelog for the datasheet
## **SPE-22-8-149 – TFM.110.A**
## **Revision: B (Current Version)**
Date: 2022-10-28 Notes: Added antenna integration guide Author: Gary West
## **Previous Revisions**
## **Revision: A (Original First Release)**
Date: 2022-09-26 Notes: Initial Release Author: David Connolly
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www.taoglas.com
© Taoglas www.taoglas.com 20
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Updated at June 9, 2026
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