VHF & UHF Cavity Filters

Coaxial resonator cavity filters available in a 150 mm diameter design. Constructed from aluminium with invar rod tuning for temperature compensation, these filters are engineered for stable performance and reliable operation. The mechanical design features contactless tuning for improved durability and long-term consistency.

UHF
CAV-UBP (Band Pass)
CAV-UBR (Band Reject)
CAV-UBPBR (Band Pass Band Reject)
CAV-UBRBP (Band Reject Band Pass)

Model CAVITY-VBP CAVITY-UBP
Frequency Range (MHz) 75-80 & 138-170 400-510
Bandwidth of Pass Band at 14dB 50 KHz 300 KHz
Insertion Loss (dB) 0.5, 1.0, 1.5
Input Impedance (Ohms) 50
Return Loss (dB & VSWR) <-14 dB 1.5:1
Maximum Power (Watts) 250 @ 0.5dB IL / 100 @ 1.5dB IL
Connector Type N Jack
Temperature Range (deg C) -30 to +50 (5ppm)
Cavity Diameter (mm) 150
Weight (kg) 4 2