Utilizing passive components like inductors and capacitors, this RF bandpass filter forms a resonant circuit that responds to signals within a defined frequency range. The dielectric properties of materials within the filter influence its performance, affecting its ability to discriminate and transmit signals efficiently.

Specification

• Model: RDDLZ-BPF-C1221.5M122M-SE
• Frequency Range: 1165~1287 MHz
• Impedance: 50 Ohm
• Insertion Loss: ≤1.0dB
• Passband Fluctuation: ≤0.5dB
• Restraint Outside the Band: ≥40dB@DC-1058MHz, ≥40dB@1394-3000MHz
• VSWR: ≤1.5
• Power: 5W
• Input/ Output Connectors: SMA-Female
• Operation Temperature: -40℃~+70℃
• Storage Temperature: -55℃~+85℃
• Surface Fishing: Black Paint
• Dimension: 72*45*36mm

Dimension (Unit: mm)

Tips: How does a passive RF bandpass filter work?

A passive RF bandpass filter allows a specific range of radio frequency (RF) signals to pass through while attenuating frequencies outside this range. It typically consists of capacitors and inductors arranged in a way that forms a resonant circuit. At the filter's center frequency, the reactive components provide a low impedance path, facilitating signal transmission. Frequencies deviating from the center experience increased impedance due to the filter's resonant behavior, causing attenuation. The filter's bandwidth, determined by the quality factor (Q) of the components, defines the range of accepted frequencies. By carefully selecting component values, designers tailor the filter's characteristics to meet specific RF requirements, such as signal isolation and interference rejection. Passive RF bandpass filters find applications in communication systems, ensuring selective signal passage within desired frequency bands.