I am monitoring power up to 20W using the LMH2110 from DC to 8GHz. To reduce the power to the detector, I am using a resistor divider connected in parallel to my output RF, the output of the detector drops to zero below 0.1 to 0.2V. I tried different resistor combinations but the linear behavior of the detector with logarithmic power fails below 0.1 to 0.2V output. This phenomenon is giving less dynamic range than 20dB to 25dB depending on frequency. Any explanation for this phenomenon? or a suggestion to get rid of the detector nonlinearity at low power levels?