This filter is a narrow band pass filter of ceramic dielectric resonator type, which can carry higher power. The 1dB bandwidth is about 27MHz, and the cutoff characteristic is steep. It is used for signal testing of CDMA800, TDMA, etc. in the frequency range of 868-895 MHz, which can effectively filter out-of-band signals, reduce noise, and increase dynamic range.

Model: CRFB-881

Impedance: 50 Ohms

Center frequency: 881 MHz

Passband (1dB bandwidth): 868 ~ 895 MHz

Band interpolation loss: <=3.0 dB (typical value: ~ 2.3 dB)

Maximum carrying power: 1 W (30 dBm)

Interface: SMA-F, SMA-F (the radio frequency characteristic is non-directional, both ends can be input/output)

Frequency response graph (marked as 3dB bandwidth in the figure):

----Scan mark frequency: 881MHz, scan width: 500MHz. The blue line is the transmission loss, 10dB per vertical division. The yellow line is the reflection loss, 5dB per grid vertically