ACAR3705-SB

**LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

## ACAR3705-SB Po 

## **Features** 

## **Applications** 

**37.0 x 5.0 x 5.0 mm Pb RoHS/RoHS II Compliant** © **MSL = N/A** 

- NB-IoT, LTE Cat M1 coverage from 698 - 960 MHz 

- LoRa/Sigfox at 868, 915 MHz 

- Linear polarization 

- SMD antenna 

- IoT 

- M2M 

- LPWA, NB-IoT, LoRa, SigFox applications 

- Sub GHz Cellular band applications 

- Smart meter 

- Medical 

- Smart city 

## **Electrical Specifications** 

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Parameters Min. Typ. Max. Units Note<br>ee Frequency Range 698 ~ 960 MHz<br>Depends on the<br>VSWR 4.5 environmental<br>conditions<br>Tt Polarization Linear Lhe<br>Impedance 50 Ω<br>es ee ee<br>Average -1.41 dBi<br>Gain<br>ee Peak  ee ee ee 0.61 dBi<br>40 @ 698 MHz<br>——— 60 @ 791 MHz<br>60 @ 824 MHz<br>Efficiency %<br>50 @ 862 MHz<br>50 @ 880 MHz<br>=> 40 | @ 960 MHz<br>* Evaluation board size: 45 x 120 mm<br>* Actual Electrical Value will depend on the size of ground plane in use<br>**----- End of picture text -----**<br>


## **Environmental Characteristics** 

|**Parameters**|**Description**|
|---|---|
|Termination|Ag (Pb free)|
|OperatingTemperature|-40ºC to +85ºC|
|Storage Temperature|-40ºC to +85ºC|
|Relative Humidity|0 ~ 95 %|



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5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED 

**REVISED** : 01.24.2019 

**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

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ACAR3705-SB<br>**----- End of picture text -----**<br>


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


## **Product Dimensions (Unit: mm)** 

## **Customer’s Requirement Layout Dimension (Unit: mm)** 

## Matching Circuit 

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5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED 

**REVISED** : 01.24.2019 

**LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

## ACAR3705-SB So **Product Dimensions Recommended foot print for Evaluation Board (Unit: mm)** 

## **Pb** S| 

**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

t, w = Dimensions according to the PCB in use 

|**Circuit Symbol**|**Size**|**Description**|
|---|---|---|
|L1|0402|22 nH Inductor|
|L2|0402|12 nH Inductor|
|L3|0402|27 nH Inductor|



**LLC** 

5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

4 —A ABRACON 

ABRACON IS ISO9001-2015 CERTIFIED | 

**REVISED** : 01.24.2019 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

## ACAR3705-SB 

**Pb** 

**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

## **Product Dimensions** 

## **Test Board Dimensions** (Unit: mm) 

5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED** : 01.24.2019 ISO9001-2015 **LLC** For terms and conditions of sales, please visit: CERTIFIED www.abracon.com 

**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

ACAR3705-SB 

## **Pb** 

## **Return Loss and VSWR** 

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|**Frequency (MHz)**|698|791|824|862|880|960|
|---|---|---|---|---|---|---|
|**Return Loss(dB)**|-6.25|-15.02|-11|-7.7|-6.5|-4.17|
|**VSWR**|2.89|1.42|1.78|2.39|2.79|4.24|



5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS **REVISED** : 01.24.2019 ISO9001-2015 CERTIFIED 

**LLC** 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

## ACAR3705-SB ee **Gain and Efficiency** 

**37.0 x 5.0 x 5.0 mm Pb RoHS/RoHS II Compliant MSL = N/A** S| 

Ground Length = 107 mm 

## **Efficiency** 

## **Average Gain** 

**Reference** : Efficiency varies with ground plane size 

## **Peak Gain** 

|**Frequency (MHz)**<br>**Efficienc**|698|791|824|862|880|960|
|---|---|---|---|---|---|---|
|**Efficiency (%)**|43.95|63.31|63.57|56.95|52.49|40.62|
|**Average Gain(dBi)**|-3.57|-1.98|-1.96|-2.44|-2.79|-1.41|
|**Peak Gain(dBi)**|-0.76|0.39|0.61|0.27|-0.19|-1.41|



5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **LLC** For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED | | 

**REVISED** : 01.24.2019 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

ACAR3705-SB 

**Pb** 

**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

## **Gain and Efficiency** 

5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED 

**REVISED** : 01.24.2019 

**LLC** 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

ACAR3705-SB **37.0 x 5.0 x 5.0 mm Pb RoHS/RoHS II Compliant** Po °| **MSL = N/A** 

## **Radiation Patterns** 

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700 MHz 760 MHz<br>824 MHz 960 MHz<br>**----- End of picture text -----**<br>


5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **LLC** For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED 

**REVISED** : 01.24.2019 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

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ACAR3705-SB<br>**----- End of picture text -----**<br>


**37.0 x 5.0 x 5.0 mm Pb RoHS/RoHS II Compliant MSL = N/A** 

## **Packaging (Unit: mm)** 

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No. of pieces per tape 450 pcs<br>No. of pieces per carton 1350 pcs<br>**----- End of picture text -----**<br>


## **Transmission Line and Matching** 

- The matching network has to be individually designed using one, two or three components. 

5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS ISO9001-2015 CERTIFIED 

**REVISED** : 01.24.2019 

**LLC** 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

## ACAR3705-SB 

**37.0 x 5.0 x 5.0 mm Pb RoHS/RoHS II Compliant MSL = N/A** 

## **Recommended Reflow Soldering Profile** 

|**Phase**|**Profile Features**|**Pb- Free Assembly (SnAgCu)**|
|---|---|---|
|Preheat|- Temperature min (Tsmin)<br>- Temperature max (Tsmax)<br>- Time(ts)from Tsmin to Tsmax|150°C<br>200°C<br>60 – 120 sec|
|Ramp-up|Avg. Ramp-upRate(Tsmax to TP)|3°C/second(max)|
|Reflow|-Temperature (TL)<br>-Total time above TL(t L)|217°C<br>30-100 sec|
|Peak|-Temperature (TP)<br>-Time(tp)|260°C<br>20-30 sec|
|Ramp-down|Rate|6°C / sec max.|
|Time from 25°C to Peak Temperature||8 min max.|
|Composition of Solderpaste||96.5 Sn/Ag/0.5Cu|
|Solder Paste Model||SHENMAO PF606 – P26|



* All the temperature measurement points are on the component surface. If the temperature goes over the recommended value, it might cause component damage or peeling of the surface. 

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


5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS **REVISED** : 01.24.2019 ISO9001-2015 CERTIFIED 

## **LPWA/ Sub-GHz Cellular Ceramic Chip Antenna** 

ACAR3705-SB 

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


**37.0 x 5.0 x 5.0 mm RoHS/RoHS II Compliant MSL = N/A** 

## **Soldering Condition** 

Soldering Iron temperature 270°C ± 10°C 

- i. The solder iron should be heated up to 120°C for 2-3 minutes. 

- ii. Each terminal should be soldered within 3 seconds. If the temperature of the solder iron is over 270°C ± 10°C or if soldering takes more than 3 seconds, the component surface could peel off or the component could be damaged. 

- iii. Soldering should be done with care to ensure that there are no short circuits or open paths for leakage of current. 

## **Reliability Tests** 

- i. Low-temperature test: Expose the specimen to -30°C for 16 hours and then to normal temperature/ humidity for 24 hours or more. After this test, examine its appearance and functions. 

- ii. High-temperature test: Expose the specimen to +85°C for 16 hours and then to normal temperature/humidity for 24 hours or more. After this test, examine its appearance and functions. 

- iii. High-temperature/ High-humidity test: Subject the object to the environmental conditions of +85°C and 90 – 95 % R.H. for 96 hours, then expose to normal temperature/ humidity for 24 hours or more. After this test, examine its appearance and functions. 

- iv. Thermal shock test: Subject the object to cyclic temperature change (-30°C, 30 minutes <=> +85°C,30 minutes) for 5 cycles, the expose to normal temperature/humidity for 24 hours or more. 

- v. Vibration test: 

   - Sinusoidal vibration test: Subject the object to vibrations of 5 to 200 to 5 Hz swept in 10 minutes, 4.5 G at maximum (2 mm amplitude), in X and Y directions for two hours each and in Z direction for four hours. After this test, examine its appearance functions. 

   - Vibration test in packaged condition: Subject the object, which is packaged as illustrated, to vibrations of 15 to 60 to 15 Hz swept in 6 minutes, 4 G at maximum (2 mm amplitude at maximum), applied in X, Y and Z directions for two hours each, i.e. six hours in total. After this test, examine its appearance and functions. 

- vi. Free fall test in packaged condition: Drop the object, which is packaged as illustrated, to a concrete surface from the height of 90 cm, on one comer, three edges and six faces once each, i.e. 10 times in total. After this, check the appearance and functions. 

- vii. Soldering heat resistance test: After the lead pins of the unit are soaked in solder bath at 270 ± 5°C for 10± 0.5 seconds and then be left for more than 1 hour at 25 ± 5°C in less than 65 % relative humidity. 

- viii. Adhesion test: The device is subjected to be soldered on test PCB. Then apply 0.5 Kg (5 N) of force for 10 ± 1 seconds in the direction parallel to the substrate. (The soldering should be done by reflow and be conducted with care so that the soldering is uniform and free of defect by stress such as heat shock). 

**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. 

4—A ABRACON 

5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED** : 01.24.2019 ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com | | 

**LLC**