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Original question:

CC3235MODSF: Single-Band and Dual-Band External Antenna Recommends..

CC3235MODSF: CC3235MODSF: Dual-Band (and Single Band) External Antenna Recommends.. To Retain Pre-Certification..

Newman
Expert 5605 points
Part Number: CC3235MODSF

Hi Team WiFi,

Reference (https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/p/842148/3115233 ). 

Customer reports that..

"The Laird dual band antenna (001-0016) that was used during TI’s FCC and IC approval is quite costly.  They'd like to maintain an off-board antenna, but the referenced antenna is, once again, quite costly. 

Is TI aware of a lower cost dual-band off-board antenna that will still maintain the FCC/IC/Module approval? 

Is it true that to retain the pre-approval, the alternate antenna must be of the same antenna type and equal or less gain to what was used during the approvals testing?

I would greatly appreciate your prompt assistance in locating an alternate antenna that does not invalidate the modules pre-approval."

Any ideas?

Thanks, Merril

  • 0
    TI__Mastermind 29570 points

    Hi Merril,

    If you change the antenna, then it is important that the antenna gain is the same or lower than the original antenna in order to retain the approval.

    Check out ProAnt antennas which we have used in a couple of designs: 

    Since the antenna is also dependent on the GND plane size or slight difference in placing in the casing, I would make a measurement with the existing antenna and with the new one; then provide this to the test house to guarantee that the new antenna will be compliant.

    Regards,

       Richard