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IWR1443: Response curve of HPF in analog IF

Part Number: IWR1443

Hello,

Is HPF1 and/or HPF2 able to be bypassed?
As I looked at "HPF1/2 Corner Freq" pull down of "Sensor Config" of Radar Studio, "disabled" does not exist. The setting in pull down is  HPF1: 175K, 235K, 350K and 700K, HPF2: 350K, 700K, 1.4M and 2.8M. So I thought HPF1/2 cannot be bypassed.

Why I ask this question is that my customer is considering an application which needs to detect ~1mm thickness object from 2cm to 30cm distance.

Best Regards,
Katsuhiro