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Illustrative purposes only
PRO-OB-572
RF Antenna, GSM / NB-IoT1.71 GHz - 2.17 GHz, 2.3 dBi, Mixed Linear, 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: ABRACON
- Product type:
- Gain: 2.3dBi
- SVHC: No SVHC (04-Feb-2026)
- VSWR: -
- Input Power: -
- Antenna Type: GSM / NB-IoT
- Frequency Max: 2.17GHz
- Frequency Min: 1.71GHz
- Product Range: -
- Input Impedance: 50ohm
- Antenna Mounting: SMD
- Antenna Polarisation: Mixed Linear
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 2.29 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Features**
## **Applications**
- Support NB –IoT Bands:
- 791 ~ 960 MHz + 1710 ~ 2170 MHz
- Profile of 10 mm
- Mixed Linear Polarization
- Max Gain of 2.3 dBi
- Efficiency > 49%
- Surface Mount
- Durable-Shelf life of up to 10 years
- LPWA/NB-IoT/4G/LTE/3G/2G/GSM `o` IoT, M2M `o` Industrial
- Infrastructure IoT
- Consumer electronics
- Wireless modules
- Video and surveillance
- Broadband cellular connectivity
- Networking & Telecommunication
## **Product Imag**
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Electrical Specification**
|**Parameter**|**Specification**|**Specification**|**Unit**|
|---|---|---|---|
|OperatingFrequency|791 - 960|1710 - 2170|MHz|
|Return Loss|˂ -5.1|˂ -6.4|dB|
|Polarization|Mixed Linear|||
|Peak Gain|2.2|2.3|dBi|
|Efficiency|> 65|> 49|%|
|Impedance|50||Ω|
_Note: All measurements were conducted on the evaluation board in free space. Performance will vary depending on the ground plane, application, and environment._
## **Mechanical Specification**
|**Parameter**|**Specification**|
|---|---|
|Antenna Dimension|50.00 x 25.00 x 10.00 mm|
|Evaluation board Dimension|120 x 52 mm|
|MountingType|Surface Mount|
## **Environmental Specification**
|**Parameter**|**Specification**|
|---|---|
|OperatingTemperature|-40°C to +125°C|
|Storage Temperature||
|Maximum Temperature|400°C|
|RoHS Compliance|Yes<br>Compliant with EU directive 2011/65/EU and 2015/863|
|Shelf life|10years|
|MSL|Level 1,unlimited|
|Mechanical resistance|Immunity to vibrations IEC/EN 60068-2-6, Fc test<br>Immunity to shock IEC/EN 60068-2-27, Ea test|
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Product Dimension**
Unit : mm
## **Antenna pins and keep-out block**
Unit : mm
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com | |
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **PCB layout and antenna pin numbering**
The antenna uses PIFA technology and should thus be mounted on a ground plane. If there are several layers in the PCB, there is an advantage to add vias for smooth interconnection of the ground areas to avoid splits in the ground plane. It is also important that there is a ground clearance around the NC pads and the RF feed pad, through all layers of the PCB. It is recommended to implement a matching network to optimize the antenna impedance in your application. The components can be positioned under the antenna. See recommendations in the figures below. All units in mm.
_PCB Layout (from evaluation board)_
_Pin configuration_
_Bottom layer. Clearance through all layers. Pad 6 and 7 have identical layout as top layer and are connected by via_
_Distance between pads Pad dimensions (top layer). 1,3 and 4 are identical. 2 and 5 are identical. 6 and 7 are identical._
_Tinned copper_ Zaeo _Solder resist_ /\ _Via_ \i \ ) A _The sketch shows recommended design for pad 6 & 7 at top-layer._
_Solder mask as an annular ring with inner diameter of 1 mm, the solder resist in center will prevent solder paste/tin to flow down the via._
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572** PO
Request Samples
**50.00 x 25.00 x 10.00 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Measurement Setup**
The antenna measurements were all done in free space with the OnBoard SMD GSM/NB-IoT evaluation board (PROEB-575) that has a PCB size of 120 x 52 mm.
5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com
ABRACON IS ISO9001-2015 CERTIFIED
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572** PO **Reflection Characteristics - Return Loss**
## **Total Radiation Efficiency**
Request Samples
Check Inventory
## **Maximum Radiation Gain**
**50.00 x 25.00 x 10.00 mm RoHS/RoHS II Compliant MSL Level = 1**
5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com
ABRACON IS ISO9001-2015 CERTIFIED
**OnBoard GSM/NB-IoT - Antenna**
**PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Radiation Characteristics - 2D Pattern (890 MHz)**
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_HP: Horisontal Polarization_
## ~~Aran~~
_Unit: dBi_
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ~~|~~
**OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
## **Radiation Characteristics – 2D Pattern (1800 MHz)**
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_Unit: dBi_
## Aaron
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
**OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory 2 © **RoHS/RoHS II Compliant MSL Level = 1**
## **Radiation Characteristics - 2D Pattern (1900 MHz)**
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_Unit: dBi_
## Aaron
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ~~Ld)~~
**OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory ) **RoHS/RoHS II Compliant MSL Level = 1**
## **Radiation Characteristics – 2D Pattern (2100 MHz)**
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_Unit: dBi_
5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com
ABRACON IS ISO9001-2015 CERTIFIED
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572**
Request Samples Check Inventory
**50.00 x 25.00 x 10.00 mm RoHS/RoHS II Compliant MSL Level = 1**
## **Evaluation Board Outline & Matching Circuit**
The evaluation board (PRO-EB-575) is developed to simplify antenna testing and evaluation. It has an arbitrary size of 120 x 52 mm and includes an SMA connector. The purpose is to give a reference design for an optimal antenna implementation. The evaluation board can also be used to test other implementations by cutting and soldering the PCB into any device.
## _Evaluation board outline_
The evaluation board has a matching circuit implemented next to the antenna. This is aimed to enable optimization possibilities for the user. The component positions are sized for 0402 (1005 metric) SMD components.
**==> picture [460 x 84] intentionally omitted <==**
**----- Start of picture text -----**<br>
Antenna feed<br>C2 C4<br>C2 C4<br>Transmission line<br>C1 C3 api<br>C1 C3<br> Matching circuit<br>**----- End of picture text -----**<br>
The antenna needs a matching circuit to adjust the resonant frequency balance. When delivered, the evaluation board is tuned for optimum balance at the GSM/UMTS frequency bands using the following (can be replaced by equivalent): C1 = 0.9 pF (Murata GJM1555C1HR90WB01) C3 = N/A C2 = 6.8 pF (Murata GJM1555C1H6R8WB01) C4 = 2.4 nH (Murata LQW15AN2N4B00)
However, it is common that the resonant frequency will shift during implementation in an arbitrary device. Therefore, this matching may be changed with other values/components/brands for compensation of such effects. This is further described in the General Implementation Guidelines section below.
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572** ee **General Implementation Guidelines**
**50.00 x 25.00 x 10.00 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1**
The antenna can be positioned in different ways, although there are some positions which are more beneficial. Below picture shows a typical PCB with examples on different antenna positions. The optimal position is option 1 or 4.
**==> picture [333 x 139] intentionally omitted <==**
**----- Start of picture text -----**<br>
1 4<br>Optimal 1 & 4<br>3<br>6<br>2 5<br>2 & 5<br>3 = 6 |<br>**----- End of picture text -----**<br>
**==> picture [121 x 10] intentionally omitted <==**
**----- Start of picture text -----**<br>
= GND pin(s)<br>**----- End of picture text -----**<br>
The antenna should be aligned with the PCB edge if possible, preferably with the GND pin(s) close to a corner.
The antenna enables that small electrical components are mounted inside the antenna keep-out block. This is a spaceefficient solution which has very little influence on the performance. It may have an impact on the antenna tuning, but is fully possible if there is limited space on the PCB.
Another general aspect on surface mounted antennas is regarding the PCB population. If other electrical components are positioned in the surrounding area of the antenna, some impact on the antenna tuning and radiated performance may be expected. It is recommended that such components are distributed below a topographical slope that starts on PCB level at the antenna keep-out block, and slowly increases the height.
It shall also be highlighted that plastic and metal parts in the near proximity of antennas may influence the antenna tuning and/or performance. This aspect should be noted as a general guideline for all antennas. The effects are difficult to estimate without detailed information, but it is common that a plastic housing above the antenna shifts the resonant frequency down. It is recommended to measure the antenna in the actual device after implementation.
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572** Po
Request Samples Check Inventory
**50.00 x 25.00 x 10.00 mm RoHS/RoHS II Compliant MSL Level = 1**
## **Packaging**
The antenna is delivered on tape and reel according to following specifications. The quantity per 13” reel is 100 pcs.
_Unit: mm (unless otherwise noted)_
- 10 sprocket hole pitch cumulative tolerance
- Camber not to exceed 1mm in 100m
- A0 and B0 measured on a plane 0.35mm above the bottom of the pocket
- Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole
- Component load per 13” reel: 100 pcs
- Packing length per 22” reel: M
- K0 measured from a plane on the inside bottom of the Pocket to the top surface of the carrier
ABRACON IS ISO9001-2015 CERTIFIED |
5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com
## **OnBoard GSM/NB-IoT - Antenna**
## **PRO-OB-572** PO **Part Marking**
Request Samples
Check Inventory
**50.00 x 25.00 x 10.00 mm RoHS/RoHS II Compliant MSL Level = 1**
The top marking of the antenna is arranged according to the following illustration.
## **Ordering Information**
**==> picture [480 x 54] intentionally omitted <==**
**----- Start of picture text -----**<br>
Part number Part name Details<br>PRO-OB-572 OnBoard SMD GSM/NB-IoT Antenna for NB-IoT and GSM/UMTS<br>Evaluation board, Evaluation board with PRO-OB-572<br>PRO-EB-575<br>OnBoard SMD GSM/NB-IoT for NB-IoT and GSM/UMTS applications.<br>**----- End of picture text -----**<br>
ATTENTION: Abracon LLC’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependent Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon LLC is required. Please contact Abracon LLC for more information.
5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com
Updated at June 9, 2026
Abracon is an industry-leading manufacturer of passive components, specializing in frequency control, timing devices, RF and antenna solutions, and inductor technology. Through a commitment to quality and technical innovation, the company enables advanced IoT, data communication, industrial, medical, and aerospace applications. Abracon also powers a portfolio of trusted industry brands, including Ecliptek, Fox, ILSI, and ProAnt, delivering comprehensive solutions for modern engineering challenges. Globally recognized for its world-class frequency control devices, Abracon offers a vast selection of quartz crystals and standard oscillators engineered to provide exceptional stability and precision for critical circuitry. The comprehensive timing range also encompasses advanced MEMS oscillators, temperature-compensated (TCXO) and voltage-controlled (VC-TCXO) variants, alongside highly reliable resonators. Beyond timing components, Abracon excels in power management and connectivity. The company's magnetic and RF offerings include a substantial array of high-efficiency power inductors, specialized toroidal coils, and charging coils. To support seamless wireless communication and maintain signal integrity, Abracon provides a robust selection of RF antennas, single-band chip antennas, and common mode chokes designed for effective EMC and RFI suppression.
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