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CC-ANTENNA-DK2: dual (SubG and 2.4G) antenna design/ options for simultaneous operation

SmartEnrg
Expert 1145 points
Part Number: CC-ANTENNA-DK2
Other Parts Discussed in Thread: CC1352R, , LAUNCHXL-CC1352R1

Hi,

I am looking at CC-ANTENNA-DK2 boards #3, #9 and #11 for dual (SubG and 2.4G simultaneous operation) antenna design using cc1352r.

A couple of questions in this connection: 

1) Are these three designs (#3, #9, #11) meant for simultaneous dual (SubG and 2.4G) band operation? vs. only one band or the other?

2) #11 schematic reads "Single band BOM" - which band is that?

I would like to get BOM values for dual band (915MHz and 2.4G) for all three of these board designs - especially for #3 and #11. Thanks.

  • 0
    TI__Mastermind 29560 points
    Hi,

    1. Antennas #3, #9, #11 can be used for dual-band operation (868/915 MHz + 2.4 GHz)

    2. Antenna #11 "Single-band" is for the 2.4 GHz ISM band i.e. 2402 - 2480 MHz. This can be made dual-band with the antenna match network.

    The exact antenna match values will vary pending your GND size and the surrounding housing/packaging. The process to find the antenna match values is documented in the app note: www.ti.com/.../swra640.pdf

    Section 6 describes in detail how to determine the antenna match values for dual-band design.

    Regards,
    Richard
  • 0 in reply to RGW
    Expert 1145 points
    Thanks Richard,

    A followup question - with reference to my evaluation setup as follows:
    * LAUNCHXL-CC1352R1, rev B - C482 removed and C483 installed
    * (FL3) RF-switched dual-band signal connected, via J7 > to TIDC-CC-Antenna-DK-Ver2_2_1 Reference Design

    Question:
    Just to reconfirm, what I understand - circuit/ schematics for #3 (consisting of Z8-Z12) and #11 (Z43-Z46) are
    adequate as-is to serve both <1G and 2.4G simultaneously. We just need BOM change, for network matching
    purpose. Is that correct?
  • 0 in reply to SmartEnrg
    TI__Mastermind 29560 points
    Hi,
    Yes, the dual band matching is in the antenna match components.
    Regards,
    Richard