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The antenna design of NFC is supported by this web site

  1. Before using this web site, Confirmed "Notes for using this web site"
  2. Using this web site, read "Tutorial" and "Design guide"

  1. If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed.
  2. The technical information described in this book is intended only to show the main characteristics and application circuit examples of the products. No license is granted in and to any intellectual property right or other right owned by Panasonic Corporation or any other company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other company which may arise as a result of the use of technical information described in this book.
  3. The products described in this book are intended to be used for general applications (such as office equipment, communications equipment, measuring instruments and household appliances), or for specific applications as expressly stated in this book. Consult our sales staff in advance for information on the following applications:
    Special applications (such as for airplanes, aerospace, automotive equipment, traffic signaling equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. It is to be understood that our company shall not be held responsible for any damage incurred as a result of or in connection with your using the products described in this book for any special application, unless our company agrees to your using the products in this book for any special application.
  4. The products and product specifications described in this book are subject to change without notice for modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements.
  5. When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any defect which may arise later in your equipment.
    Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products.
  6. Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS, thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages.
  7. This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of our company.
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  2. A recommended browser: Chrome
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Panasonic Semiconductor NFCTAGLSI

since 2012        

Ver. 3.6  

 Tag antenna design
: mm
: mm
: mm
: mm
:  µm
: turn
No update while a slider is moving
Cr (Resonance capacity)
Auto Set :

Specified max. antenna size
(more than 8mm)

No   Yes

Lx(Length X) :
Ly(Length Y) :


The value should be integer, 8 to 100

The aspect ratio should be less than 8

  Note: Using the result, clicking "Accept"
          "Custom" is selected, calculation is        cancelled

  Setting is invalid on Save/Load

 R/W Setting

Original R/W

Nexus S

 (Nexus is registered trademark of Google Inc.)


L[µH] C1[pF] C2[pF] r1[Ω]

Resonance capacity* input capacity(**) Tag antenna design parameter
Cr Ci L Lx Ly w g t N
pF pF µH mm µm turn

  *An external resonance capacity may subtract the input capacity(**) of the LSI from the displayed Cr.
  [RF Spec.]:  ISO/IEC14443 Type B       JIS X 6319-4 FeliCaNote2:

  [ ! ] The aspect ratio should be less than 8 ( Adjusted to less than 8 ) 

  [!] The patterns are adjusted without overlap 

  [ ! ] Resonance capacitor should be inputted to first decimal place 

Not corresponded Internet Explorer 8 or less (Use other browsers)

 Function and result    Model Number : MN63Y1213 MN63Y1210A MN63Y1214/MN63Y1221

  Selection of LSI

     Communication distance and Magnetic field for selected device are supported

Model Number NFC spec. Host IF IF
Encrypted communication
MN63Y1213 TYpeB
3V system 432Byte AES128
MN63Y1210A TYpeB
3V/5V system 432Byte -
3V system 960Byte -

Note: "FeliCa" is registered trademark of Sony Corporation.    

     For first visited user

         After confirmed device, select function on tab, If "Mag. Field" is selected
         The communication distance and magnetic field strength of the antenna
         is displayed

    Video of operation for NFC Design Navigator

         Clicking opens new window for viewing video.

NFC Design Navigator Explanation Video

  Magnetic field strength and communication distance*     
   About Comparison with the measured values 

    Note: Example of our LSI, Characteristics is not guarantee on any condition
      Note: "FeliCa" is registered trademark of Sony Corporation.
The position of Tag antenna Communication distance (Height of antenna)
Offset Tilt Type A Type B FeliCa (Note)
mm ° mm mm mm

  Adjusting position of Tag antenna

 Rotation of α·β·γ:

:  mm
:  mm
:  mm
:  °
:  °
:  °

   W.                                                  S.  

  Displaying distance dependence of induction voltage No   Yes

   It takes time for display. if necessary, please select "Yes"

  Parameter dependence

        Adjusting the parameters with dependence of the communication distance.
       Adjusting result of the parameters are displayed in the graph
                               *  Note: The graph is not updated, until the button is clicked.
                    (            :  Setting before the update,            :  Range can not be set )

  Resonance capacity ( Cr )
   The shape of tag antenna (Lx, Ly, w, g, t, N)

  Communication demo


The relative position of Tag antenna
Offset  Tilt sensor sync
x y z α(z) β(y) γ(x)
mm °
        0         0 ↑      1         0         0         0

 W.                                          S.

   The position is shown as three dimensions  (  The shadow is shown )

  Suitable antenna design

      The best antenna for R/W is calculated. [The max. distance for FeliCa]

      1) "Calc." is clicked on Tag antenna design[Auto]
      2) Clicking "Accept" shows result,Adjustment is possible
       * When max. distance is same on calculated antennae by size setting,
         one of antennaea is shown.
       * Note: "FeliCa" is registered trademark of Sony Corporation.

Parameters of Tag antenna Communication distance
(Height of antenna)
Type A Type B FeliCa (Note)
mm µm turn mm

  Creating PCB design data  ("Antenna" only)

PCB design data :
Antenna* Antenna+LSI peripheral (without connector)
Antenna+LSI peripheral Antenna+LSI peripheral (with connector)
Output data for PCB   (Refer to design guide)

  Note: Our company shall not be held responsible for any damage by making board
            with this output data

  Writing setting data

The text data are copied and pasted into a file

  Reading setting data

The saved text data are copied and pasted into this area