The B291MB0S from Knowles is a Bandpass Filter with a passband from 27.5 to 31 GHz. It has a passband insertion loss of less than 3.25 dB and provides up to 45 dB of rejection both above and below the passband. This BPF can handle an input power of up to 5 W and has a return loss of more than 10 dB. It is available in a surface mount package that measures 11.43 x 3.556 x 2.235 mm and has an operating temperature range of -55 to 125 Degree C.
