Figure 3

Reflection \(\vert S_{22}\vert \) and Transmission \(\vert S_{21}\vert \) probed for CR-110 and Esorb-230 filters. Characteristics were obtained for room temperature and ∼3 K (red and blue curves, respectively), where, for the latter, an extra 40 dB of attenuation was added to the ingoing signal. Solid lines represent the average values for 4 filters measured at room temperature and 2 filters measured cryogenically. The RT data is already corrected by the calibration with ‘through’ connection. The lightly shaded areas represent the biggest deviation from the average among 4 or 2 filters demonstrating the reproducibility of manufacturing