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CC3135MOD: CC3x35MOD patch approved Antennas

TISL
Expert 3795 points
Part Number: CC3135MOD

Dear support,

Because of their end equipment constraints, my customer would need to use a patch antenna, as the SWDP.2458.15.4.A.02, from Taoglas.

He is concerned about the FCC and CE certifications, as it's not referred in our Approved Antennas (from doc CC3135MOD OEM Integrator's Guide).

Do we have any feedback/experience on certifications with patch antennas?

Do we have any specific vendor/ref to recommend?

Further details can be send in PM on the application, etc... if needed.

Regards,

  • 0
    TI__Mastermind 34570 points

    Hi TISL,

    Refer to the approved antenna list that can be found in each regions test report.

    For JP certification, you can only use the antennas on the list.

    For other regions, you can use any antenna as long as the gain does not exceed what is shown on that list. And this is done by type.

    For example, the max gain for PIFA antennas is 2.5Bi (2.4GHz) and 3dBi (5GHz) . So you cannot use a PIFA antenna with a higher gain than these.

    BR,

    Seong

  • 0 in reply to Seong Kim
    TI__Expert 3795 points

    Thank you Seong.

    My point was referring to the experience we have (with our current customer) on patch antenna specifically.

    Do we have antenna patch references, for which we know that our customers have been able to get their end product certified?

    Regards,

  • 0 in reply to TISL
    TI__Mastermind 34570 points

    HI TISL,

    I'm not sure. I'll look into this and get back to you shortly.

    BR,

    Seong

  • 0 in reply to Seong Kim
    TI__Mastermind 34570 points

    Hey TISL,

    First, I'll check if PIFA and patch antennas are considered to be an equivalent.

    We do not have any patch antenna references. Perhaps the customer can consider using one of the PIFA antennas listed in the approved antenna table:

    1. LSR 001-0016
    2. LSR 001-0021

    Looking at the Taoglas SWDP.2458.15.4.A.02 datasheet, the peak gain is 5.7dBi for 2.4GHz and 4~5.3 dBi for 5GHz. This means that they'll need to redo all certification tests since the output power will need to be reduced to pass.

    BR,

    Seong

  • 0 in reply to Seong Kim
    TI__Mastermind 34570 points

    TISL,

    Our test house confirmed that because patch antennas are not listed in the original report, an additional evaluation is required. 

    I advise the customer look for an alternative solution if possible.

    BR,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 40 points

    Hi Seong, 
    Concerning the project, we will look at existing approved antennas if it can fit our needs.
    Can you confirm that a full certification for this antenna will be time & money consuming? We heard about 6/8months and about 50k$ for such a certification (especially FCC certification)?


    I have another concern about FCC Certification of the module :

    "The antenna must be installed so 20 cm of space is maintained between the antenna and the users.".

    If the device can be less than 20cm from the user, we are not able to keep the FCC Certification? Is it an issue with EMF/SAR measurements?

    Thank you for your feedback,

    Sincerely,

    Guillaume

  • 0 in reply to Guillaume Chatalic
    TI__Mastermind 34570 points

    Hi Guillaume,

    Cost and timeline for a full certification will vary by test house. so I recommend asking the ones you are considering to work with.

    If the distance will be less than 20cm, SAR testing is required. Go here and use the second link to request support and we can generate a letter for you to in order to perform the delta testing on your own FCC/IC IDs and reuse our data. This way, you can still leverage the majority of our certification, but any additional testing will need to be performed by you.

    BR,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 40 points

    Hi Seong,
    The module we want to use is CC3135MOD not WL18XX. Do you have the same process for CC3135MOD?

    Thank you,

    Sincerely,

    Guillaume

  • 0 in reply to Guillaume Chatalic
    TI__Mastermind 34570 points

    Guillaume,

    Yes, please use this link instead.

    BR,

    Seong