Tubular Band Pass Filters
RLC Electronics’ Tubular Band Pass Filters are designed for operation over the frequency range of 15MHz to 8.0 GHz. These fixed tuned filters are constructed utilizing 2 to 12 sections with 3 dB bandwidths of 2 to 60% of center frequency. These filters utilize direct coupled sections.
Specifications
BPF–1–2–3–4–5
Model Number |
Center Frequency Range (MHz) |
3 dB Bandwidth (% of fc) |
Number of Sections |
Stopband Attenuation |
BPF- |
15 to 1000 (BPF-1250) 30 to 2000 (BPF-750) 50 to 4000 (BPF-500) |
2 to 60 |
2 to 12 |
See Curves on this page |
75 to 400 (BPF-250) |
3 to 40 |
|||
400 to 8000 (BPF-250) |
3 to 60 |
VSWR: 1.5:1, Bandwidth: Curve 1, see this page Passband Insertion Loss (max at fc): Curve 1, see this page 0.5 dB Bandwidth: Curve 2, see this page 1 dB Bandwidth: Curve 3, see this page |
Power,Average, Max: 10 Watts BPF-250 25 Watts BPF-500 50 Watts BPF-750 200 Watts BPF-1250 Impedance: 50 Ohms Connectors: Type N, BNC, TNC, SMA (male or female) Environmental: MIL-E-5400, Class 1A Phase Linearity: 5 deg. Curve 4, see this page |
To designate the filter desired use:
1: Filter diameter, “250” is 1/4 inch “500” is 1/2 inch, “750” is 3/4 inch “1250” is 1 1/4 inch 2: Center frequency in MHz 3: 3dB bandwidth in MHz |
4: Number of sections 5: “N” for type N, “B” for BNC, “T” for TNC, “R” for SMA. BPF-250 is available with only SMA. Add “M” or “F” for two male or female. |
Example: BPF-500-950-95-5-R is a 1/2″ diameter, 950 MHz center frequency, 95 MHz 3 dB bandwidth, 5 sections and sma connectors
Insertion Loss
Outline Drawing
