0868AT43A0020001E

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **868 MHz RF Chip Antenna** 

Johanson Technology, Inc. (JTI) miniature RF ceramic chip antennas are made using Low Temperature Co-fired Ceramic (LTCC) technology which has the ability to embed low and high dielectric constants inside our antenna. This enables our components to have high detuning resilience and stability over extreme temperatures (~2ppm). 

Recommended mounting locations for this antenna 

a PCB End 

PCB Corner 

## **General Specifications[1][2]** 

|**General Specifications[1] [2]**||
|---|---|
|**Frequency Range (MHz)**|**858 - 878**|
|Impedance (Ω)|50|
|Return Loss (dB)|9.5 Min.|
|Peak Gain (dBi)|-2.5 Typ.|
|Average Gain (dBi)|-6.0 Typ.|
|Average Radiated Efficiency (%)|26|



## **Maximum Ratings** 

|**Maximum Ratings**||
|---|---|
|Power Capacity (W)|2 Max. (CW)|
|Operating Temperature (°C)|-40 to +85|
|Recommended Storage Conditions post-installation (°C)|-40 to +85|
||45% - 75% RH|
|Recommended Storage Conditions and Period for Unused T&R Product|+5 to +35 °C|
||18 Months Max.|



1 Typical value represents average measurement at 25°C. Min./Max. values represent measurements over specified operating temperature. 2 General specifications measured on Johanson’s evaluation board PN 0868AT43A0020001CE1. 

**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **1** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Mechanical Dimensions** 

||**Inches**|**Millimeters**|
|---|---|---|
|**L**<br>**W**<br>**T**<br>**a**|0.276<br>±<br>0.008<br>0.079<br>±<br>0.008<br>0.031<br>0.020<br>±<br>0.012<br>+0.004/-0.008|7.00<br>±<br>0.20<br>2.00<br>±<br>0.20<br>0.80<br>0.50<br>±<br>0.30<br>+0.10/-0.20|



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## **Terminal Configuration[3]** 

|**Pin Number**|**Pin Number**<br>**Function**|
|---|---|
|**1**|**Feed**|
|**2**|**NC**|



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3 The termination type is Nickel Tin. Go to: https://www.johansontechnology.com/ipcsoldering-profile for Typical Soldering Profile.  This terminal must be soldered for anchoring and mechanical stability. 

**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **2** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Evaluation Board and Recommended Mounting Configuration 1 (P/N 0868AT43A0020001CE1)** 

All units in mm 

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40  9.5<br>50Ω Feed line  Ground Vias* Antenna Matching Network<br>20<br>GND Plane<br>Ground Clearance<br>; | .  en<br>©) en =<br>— ———————<br>19 (can be any length)<br>*Note: Ground Vias are highly recommended to have better antenna efficiency.<br>1<br>GND Plane  8<br>1  6  1<br>18nH<br>50Ω GCPW  1.8<br>3.9pF  0.3pF<br>5.1  0.5<br>5.1<br>GND Plane<br>3<br>Antenna Matching Network<br>| 7.1<br>JTI P/N’s for Matching Network [4]<br>Cap (3.9pF): QSCF500Q3R9B1GV001T<br>Inductor (18nH): LRC0402CJ18NGV001T<br>Cap (0.3pF): QSCF500Q0R3B1GV001T<br>If you’d like the CAD PCB layout or have any questions,<br> contact our application engineers at https://www.johansontechnology.com/ask-a-question<br>**----- End of picture text -----**<br>


> 4 It is recommended that the designer leave available slots for a "pi" (or shunt-series-shunt) network. The antenna matching network values above are used when antenna is mounted on Johanson's evaluation board. The matching values on client’s PCB will be different, depending on the layout, thickness, material, etc. Go to: https://www.johansontechnology.com/tuning and see how to obtain the new values. 

**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **3** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Evaluation Board Typical Return Loss Measurement (P/N 0868AT43A0020001CE1)** 

**Evaluation Board  Typical 2D Radiation Patterns @868MHz (P/N 0868AT43A0020001CE1)** 

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+Z  (0°) +Z  (0°)<br>-X<br>+Y  (90°)  -X +Y  (90°)<br>+X  (0°)  +X  (90°)  -Y<br>-Y<br>-Z  -Z<br>+X  +Z  +Z<br>-Y  +Y  -X  +X  -Y  +Y<br>-X  -Z  -Z<br>**----- End of picture text -----**<br>


**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **4** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Recommended Mounting Configuration 2 (Evaluation Board Unavailable)** 

We have conducted internal studies to show that the following corner placements provide antenna efficiency results with minimal detrimental effects. 

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All units in mm<br>11<br>10<br>3<br>10  11<br>3<br>GND clearance -<br>free of metal<br>below and<br>above.<br>42  42<br>Ground Vias<br>50Ω Feed Line<br>GND Plane  GND Plane<br>26  26<br>1<br>GND Plane  8<br>1  6  1<br>50Ω GCPW  1.8<br>5.1<br>0.5<br>5.1<br>GND Plane<br>3<br>Antenna Matching Network [5]<br>rd 7.1<br>**----- End of picture text -----**<br>


If you’d like the CAD PCB layout or have any questions, contact our application engineers at https://www.johansontechnology.com/ask-a-question 

5 It is recommended that the designer leave available slots for a "pi" (or shunt-series-shunt) network. The optimal matching values will vary depending on the layout, thickness, material, etc. Go to: https://www.johansontechnology.com/tuning for more information. 

**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **5** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Tape and Reel Specification (Units in mm)** 

Tape Dimensions 

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Embossed Tape  A’<br>T  D<br>LO E  ef<br>F<br>| ( HER BER EER<br>C  B  A<br>A  A’  B  C  D  E  F  T  Quantity/reel  Tape material<br>4.0±0.1  4.0±0.1  2.4±0.1  7.3±0.1  2.0±0.05  5.5±0.1  12.0±0.1  1.45±0.1  1000pcs  Plastic (Embossed)<br>**----- End of picture text -----**<br>


Reel Dimensions 

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Top View  Side View<br>1.485 ± 0.5  >\|*<br>Label  Label<br>D=13.5 ± 0.5  ai<br>Johanson Technology, Inc.<br>Part #<br>178 ± 1<br>60 ± 0.5  Lot #<br>Quantity<br>Date<br>2.3<br>13 ± 0.5<br>>| |+<br>**----- End of picture text -----**<br>


## Leader and Trailer Dimensions 

Leader End 

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Empty Compartment with Cover Tape (500mm min.)<br>**----- End of picture text -----**<br>


**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **6** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E 

**P/N: 0868AT43A0020001E Legacy P/N: 0868AT43A0020** 

## **Orderable Part Number** 

|**Packaging Style**|**Part Number**|**Termination**|
|---|---|---|
|Bulk(loosepcs.)|0868AT43A0020001B|Nickel Tin|
|T & R(7" Reel Embossed Tape)|0868AT43A0020001E(Qty: 1,000pcs/reel)||
|Evaluation Board with 1 SMA Connector|0868AT43A0020001CE1||



## **Important Links** 

0868AT43A0020001E Product Page 

More Chip Antennas 

Antenna Tuning, Optimization, and Validation Services 

Soldering Information 

MSL Information 

Packaging Information 

Recommended Storage Condition and Max Shelf Life 

RoHS Compliance 

## _Contact our application engineers for a PCB layout review!_ 

**Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions.** 

**johansontechnology.com** 4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166 2023 Johanson Technology, Inc.  All Rights Reserved 

Doc# 36S00210 Page **7** of **7 / Revision 2.0** Datasheet: 0868AT43A0020001E