
Figure 12: Proposal (1) of the PCB design
2. If proposal 1 is not allowed. Placed a round Copper keep out region (diameter
≥3mm) on the application PCB underneath the RF feed-point to alleviate the
interference from RF signal to other part of circuitries. Besides, ground vias (says, 8)
should be placed surrounding the through hole for further shielding purpose.
Figure 13: Proposal (2) of the PCB design
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