Electrically Tunable Bandpass/Dielectric Filter

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Part.No Center frequency range


3dB fractional bandwidth

BW3dB %

Center insertion loss1)


Standing wave ratio

(Zo=50 Ω)

BW30 /BW3 In-band Input power


Tuning voltage Tuning time


VT30-110-x 30-110 3-10 2-6 2.0 7: 1 0 DC-20V 10μs
VT90-200-x 90-200
VT200-400-x 200-400
VT400-700-x 400-700
VT550-865-x 550-865
VT950-1450AE 950-1450 1.5-3.5 15-20 2.0 22dBc (Fc±60MHz) 0 1-20V 10μs


Insertion loss of VT30-110-x to VT550-865-x is related to 3dB fractional bandwidth. Center insertion loss×BW3dB%=20~25, for instance, 5% is 4-5dB;

The loss in the VT950-1450AE table is the actual loss value (including the built-in amplitude equalizer loss) in the full Frequency Range of the product.