PRO-OB-440

## **OnBoard 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

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**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Features** 

## **Applications** 

- Compact 

- Low Cost 

- Mixed Linear Polarization 

- Peak Gain of 5.2 dBi 

- Efficiency > 65% 

- Surface Mount 

- Durable-Shelf life of up to 10 years 

- 2.4 GHz - Wi-Fi/BT/BLE/ZigBee/ISM 

- IoT, M2M 

   - Industrial IoT 

   - Consumer IoT 

   - Medical IoT 

- Telemetry 

- Wireless Remote Control 

- Personal Area Networks (PAN) 

- Industrial/Commercial Equipments 

## **Product Image** 

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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

**13.75 x 5.23 x 3.53 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Electrical Specification** 

|**Parameter**|**Specification**|**Unit**|
|---|---|---|
|OperatingFrequency|2400 - 2500|MHz|
|Center Frequency|2450||
|Return Loss|˂ -6.9|dB|
|Polarization|Mixed Linear|-|
|Peak Gain|5.2|dBi|
|Efficiency|> 65|%|
|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|13.75 x 5.23 x 3.53 mm|
|Evaluation board Dimension|100 x 50 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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

**13.75 x 5.23 x 3.53 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Product Dimension** 

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Unit : mm<br>**----- End of picture text -----**<br>


## **Antenna pins and keep-out block** 

Unit : 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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** ee 

Request Samples Check Inventory 

**13.75 x 5.23 x 3.53 mm 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. 

_Pin configuration PCB Layout (from evaluation board)_ 

_Clearance through all layers_ 

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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

Request Samples Check Inventory 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Measurement Setup** 

The antenna measurements were all done in free space with the OnBoard SMD 2400 evaluation board (PRO-EB-450) that has a PCB size of 100 x 50 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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** Po **Reflection Characteristics – Return Loss** 

Request Samples 

Check Inventory 

## **Total Radiation Efficiency** 

## **Maximum Radiation Gain** 

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 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

ABRACON IS ISO9001-2015 CERTIFIED 

**OnBoard 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

Request Samples 

Check Inventory 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Radiation Characteristics – 2D Pattern (2400 MHz)** 

_VP: Vertical Polarization HP: Horisontal Polarization_ 

_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 2.4 GHz SMD - Antenna PRO-OB-440** Po 

**13.75 x 5.23 x 3.53 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant** Ca **MSL Level = 1** 

## **Radiation Characteristics – 2D Pattern (2500 MHz)** 

_VP: Vertical Polarization HP: Horisontal Polarization_ 

_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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

Request Samples Check Inventory 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Evaluation Board Outline & Matching Circuit** 

The evaluation board (PRO-EB-450) is developed to simplify antenna testing and evaluation. It has an arbitrary size of 100 x 50 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 [521 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
Antenna feed  ef C3  .<br>C1  Transmission line<br>C2 C1<br>C2  C3<br>ro . .<br>M atching circuit<br>The antenna needs a matching circuit to adjust the resonant frequency balance. When delivered, the evaluation board<br>is tuned for optimum balance at the 2.4 GHz frequency band using the following component values:<br>**----- End of picture text -----**<br>


C1 = 1.5 nH C2 = 0.5 pF C3 = N/A. 

However, it is common that the resonant frequency will shift during implementation in an arbitrary device. Therefore, this matching may be changed for compensation of such effects. This is further described in 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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** ee 

Request Samples Check Inventory 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **General Implementation Guidelines** 

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. 

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1  4<br>2  5<br>3  6<br>= !<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Optimal  1 & 4<br>3<br>6<br>2 & 5<br>|<br>**----- End of picture text -----**<br>


## _= GND pin(s)_ 

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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

Request Samples 

Check Inventory 

**13.75 x 5.23 x 3.53 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 1000 pcs. 

_Unit: mm (unless otherwise noted)_ 

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 2.4 GHz SMD - Antenna** 

## **PRO-OB-440** 

Request Samples Check Inventory 

**13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Part Marking** 

The top marking of the antenna is arranged according to the following illustration. 

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Example top marking<br>**----- End of picture text -----**<br>


## **Ordering Information** 

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Part number  Part name  Details<br>PRO-OB-440  OnBoard SMD 2400  Antenna for 2.4-2.5 GHz.<br>PRO-EB-450  Evaluation board, Onboard SMD  Evaluation board with PRO-OB-440<br>2400 for 2.4 - 2.5 GHz (Wi-Fi/BT/BLE/Zigbee) 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 ~~]~~