The AM3231 from Atlanta Micro is a Bandpass Filter with a passband from 1.5 to 2.5 GHz. It has a center frequency of 2.0 GHz, 1.9 GHz, or 1.8 GHz and a bandwidth of 1 GHz. This passive filter can handle an input power of 1 W, has a passband insertion loss of less than 3.6 dB and provides a stopband rejection of 40 dB. It is available in a compact QFN package that measures 3 x 3 mm and is suitable as an IF filter in any RF system for image, LO, and spur rejection. This 50-ohm BPF is AC coupled and has an operating temperature range from -40°C to +100°C.