ILA.08

## **SPECIFICATION** 

## **Part No.** 

## : **ILA.08** 

## **Description** 

- : 868MHz Embedded Ceramic Loop Antenna for ISM/Lora/LPWAN/Sigfox 

## **Features** 

- : High Efficiency 

   - Omnidirectional 

Low profile Tiny Size Dims: 5.0*3.0*0.5mm Surface-Mount 

RoHS compliant 

DSP-15-8- SPE-16-08-050/A/WY          Page **1** of **19** 

## **1. Introduction** 

The ILA.08 is a new 868MHz ISM band embedded ceramic loop antenna from Taoglas featuring a strong efficiency of 45% at the center of the band. It is the perfect solution for the growing amount of devices using the 868MHz band, such as Sigfox or LoRa applications in Europe, or in metering applications. 

This antenna works the best when placed at the center of the board edge. The ILA.08 antenna, at 5*3*0.5 mm, is low profile and would be suitable for devices with space constraints. The ILA.08 is delivered on tape and reel and now allows M2M customers to use an omnidirectional SMT antenna. The omnidirectional radiation characteristics allow for excellent performance regardless of device orientation. This is especially useful for devices that are not fixed in one particular spot during use. When there is little PCB space available for antenna placement, but high performance is required, the ILA.08 is the ideal choice. 

The antenna is manufactured in a TS16949 first tier automotive approved facility and has passed the most stringent reliability testing. Since it is SMD, it is much easier to integrate and more reliable in high volume production compared to helical antennas which are cumbersome to install and subject to variability due to the need for manual assembly. 

Typical Applications: 

- Sigfox 

- Lora 

- LPWAN 

- Automated Meter Reading (AMR) 

- RFID 

- Remote Monitoring 

- Healthcare 

- Sensing 

- Alarm Systems 

- Handheld Devices 

DSP-15-8- SPE-16-08-050/A/WY          Page **2** of **19** 

## **2. Specification** 

|Electrical Characteristics*<br>~~FT~~|Electrical Characteristics*<br>~~FT~~|Electrical Characteristics*<br>~~FT~~|Electrical Characteristics*<br>~~FT~~|
|---|---|---|---|
|Frequency (MHz)|863|868|870|
|Peak Gain(dBi)|-0.91|-0.51|-0.72|
|Efficiency (%)<br>Return Loss(dB)|42.57<br><-10|46.47<br><-10|44.57<br><-10|
|Impedance<br>Polarization|50Ω<br>Linear|||
|Input Power<br>10W<br>MECHANICAL<br>~~Lo~~||||
|Dimensions(mm)|5.0*3.0*0.5|||
|Groundplane(mm)|80*40(Standard Evaluation Board)|||
|Weight(g)|0.02|||
|ENVIRONMENTAL<br>OperatingTemperature<br>-40°C to 85°C<br>~~Lo~~||||
|Storage Temperature|-40°C to 85°C|||
|Relative Humidity|20% to 70%|||



*Tested on 80*40mm evaluation board. 

DSP-15-8- SPE-16-08-050/A/WY          Page **3** of **19** 

## **3. Antenna Characteristics** 

## **3.1 Return Loss** 

## **3.2 Efficiency** 

DSP-15-8- SPE-16-08-050/A/WY          Page **4** of **19** 

## **3.3 Average Gain** 

## **3.4 Peak Gain** 

DSP-15-8- SPE-16-08-050/A/WY          Page **5** of **19** 

## **4. Antenna Radiation Pattern** 

**==> picture [59 x 91] intentionally omitted <==**

**----- Start of picture text -----**<br>
Y<br>X<br>Z<br>**----- End of picture text -----**<br>


## **4.1 2D Radiation Pattern** 

## **XY Plane** 

**==> picture [155 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
X<br>0<br>30<br>60<br>Y<br>**----- End of picture text -----**<br>


DSP-15-8- SPE-16-08-050/A/WY          Page **6** of **19** 

**==> picture [59 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
XZ Plane<br>**----- End of picture text -----**<br>


**==> picture [12 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Z<br>**----- End of picture text -----**<br>


**==> picture [326 x 317] intentionally omitted <==**

**----- Start of picture text -----**<br>
X<br>210<br>l me- < (dB)<br>Z<br>YZ Plane<br>Y<br>**----- End of picture text -----**<br>


DSP-15-8- SPE-16-08-050/A/WY          Page **7** of **19** 

## **4.2 3D Radiation Pattern** 

##  ISM 868MHz 

DSP-15-8- SPE-16-08-050/A/WY          Page **8** of **19** 

## **5. Mechanical Drawing (Unit: mm)** 

## **5.1 ILA.08** 

DSP-15-8- SPE-16-08-050/A/WY          Page **9** of **19** 

## **5.2 ILAD.08** 

DSP-15-8- SPE-16-08-050/A/WY          Page **10** of **19** 

## **6. Layout Guide** 

## **6.1 Footprint** 

DSP-15-8- SPE-16-08-050/A/WY          Page **11** of **19** 

DSP-15-8- SPE-16-08-050/A/WY          Page **12** of **19** 

DSP-15-8- SPE-16-08-050/A/WY          Page **13** of **19** 

* Footprint drawings in .dwg format will be provided upon request. 

DSP-15-8- SPE-16-08-050/A/WY          Page **14** of **19** 

## **6.2 Matching Circuit** 

Like all antennas, surrounding components, enclosures, and changes to the GND plane dimensions can alter performance. A pi-matching network like the one shown below is required incase adjustments need to be made. The antenna EVB has the same matching network. The components on the EVB are a good starting point for a new design, but will need to be adjusted upon integration for best performance. The zero ohm resistor is needed to solder down a coax pigtail to make measurements with a vector network analyzer. 

DSP-15-8- SPE-16-08-050/A/WY          Page **15** of **19** 

## **7. Solder Reflow Profile** 

Typical Soldering Profile for Lead-free Process: 

DSP-15-8- SPE-16-08-050/A/WY          Page **16** of **19** 

## **8. Packaging** 

DSP-15-8- SPE-16-08-050/A/WY          Page **17** of **19** 

DSP-15-8- SPE-16-08-050/A/WY          Page **18** of **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. 

Copyright © Taoglas Ltd 

DSP-15-8- SPE-16-08-050/A/WY          Page **19** of **19**