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AWRL1432BOOST-BSD: Replace Rogers with RF4

ericzhang
Prodigy 101 points
Part Number: AWRL1432BOOST-BSD
Other Parts Discussed in Thread: AWRL1432BOOST

Tool/software:

Dear TI experts,

We have to design and maintain two versions of products, one is for clients with high performance expectations and another is for those that are cost sensitive.

Would you please give us some advices on:

1. what should we notice if we want to replace ROGERS RO3003 with RF4? 

2. can we place chips or other components on the rear side of the antenna for cutting the PCB size if 30m detection range is acceptable by clients?  We can see some TI 3rd parties simply place all components on the rear side of the antenna in their design.

Thanks,

Guolong

  • 0
    TI__Intellectual 2741 points

    Hi Guolong, 

    1. Changing to FR4 will most likely degrade the performance, but in any case, you will need to simulate and re-tune the transitions based on the new material to achieve the desired performance. If you have NDA signed with us, we'll be able to provide the encrypted HFSS model which you can use to simulate the design. 

    2. For the components, it is possible to place the components in the opposite side of the antenna however, there are some considerations to ensure the performance of the antenna is not degraded such as EMI, ground plane impact, stack up, and thermal (if the component produces high heat, then should not be placed). Same applies here, you would need to simulate the design and verify the antenna meets the required performance.

    Regards,

    Aydin 

  • 0 in reply to Aydin Kiasat
    Prodigy 101 points

    Hi Aydin,

    Really appreciate your support. Yes, we signed the NDA and please share the HFSS model with us. 

    In addition, is there any reference design using shorter antennas? We may integrate the broad in the rear light of e-bike, in which case the package size matters, especially the height and 50 meters of detection range are good enough.

    Best regards,

    Guolong

  • 0 in reply to ericzhang
    TI__Intellectual 2741 points

    Hi Guolong,

    Please request the model from the field team or marketing and they'll be able to share the model with you. 

    Since the end application is for an e-bike, I'm forwarding this to the appropriate Hardware team to comment here on any available reference design. An expert from the team will get back shortly. 

    Regards,

    Aydin 

  • 0 in reply to ericzhang
    TI__Genius 12460 points

    Hello,

    AWRL1432BOOST board is a smaller antenna with an FR4 base. More info is on ti.com webpage: www.ti.com/.../AWRL1432BOOST

  • 0 in reply to E. Shareef
    Prodigy 101 points

    Dear E. Shareef,

    Thanks for your suggestion and I checked the reference design.

    Its antenna looks much smaller than BSD’s. Would you please share its maximum detection range? 

    Best regards,

    Guolong