In audio applications, passive radio frequency bandpass filters help isolate desired frequency bands, contributing to clearer sound reproduction by minimizing interference from extraneous signals. In antenna systems, RF band pass filters narrow the receiving or transmitting frequency range, preventing adjacent channels or unwanted noise from affecting signal integrity.

Specification

• Model: RDDLZ-BPF-2.2/2.4-SE
• Frequency Range: 2.2~2.4 GHz (2200~2400MHz)
• Insertion Loss: ≤2.0dB
• Passband Fluctuation: ≤1.0dB
• Restraint Outside the Band: ≥60dB@DC-2100MHz, ≥60dB@2500-6000MHz
• VSWR: ≤1.50:1
• Input/ Output Connectors: SMA-Female
• Operation Temperature: -40℃~+70℃
• Surface Fishing: Black Paint
• Dimension: 58*22*12mm

Dimension (Unit: mm)

Test Curve Diagram

Tips: What is the difference between a passive and an active bandpass filter?

A passive bandpass filter and an active bandpass filter are both electronic circuits designed to allow a specific range of frequencies to pass through while attenuating others. The key difference lies in their use of active components, such as operational amplifiers.

A passive bandpass filter relies solely on passive components like resistors, capacitors, and inductors to achieve frequency selectivity. It lacks amplification capabilities and may experience signal loss due to its passive nature. In contrast, an active bandpass filter incorporates active components, typically operational amplifiers, to not only filter specific frequencies but also provide signal amplification. The active design enables greater control over the filter characteristics and allows for additional features like gain adjustment. While passive filters are simpler and suitable for some applications, active bandpass filters offer more flexibility and are often preferred in scenarios where signal amplification is crucial.