The E1911 from Mercury Systems is a Space Qualified RF Filter with a frequency range of 19.7-20.2 GHz and a maximum insertion loss of 2 dB. It has a maximum flatness of 0.4 dB and a flatness variation of 0.1 dB. This RF filter has a gain slope of 0.015 dB/MHz and a maximum group delay variation of 1.5 ns. It has a return loss value of 20 dB and a rejection range of 15-50 dB. The space-qualified filter features a cavity design and supports SMA and SMP connectors. It weighs 0.03 lbs and measures 0.51 x 0.966 x 1.5 inches. The filter is ideal for applications such as satellite communications and test equipment.