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Helical Filter

Helical Filter

Spiral filters are named because they use spiral resonators to realize the parallel resonance loop in the coupled resonator filter.

Helical Filter

Spiral filters are named because they use spiral resonators to realize the parallel resonance loop in the coupled resonator filter.
Therefore, its characteristics are inseparable from those of the spiral resonator.

PRODUCTION CAPACITY OF HELICAL FILTER

Helical Bandpass

※  The following is partial list of helical filters and their specifications that we have produced.

 

Model Passband (MHz) IL(f0) (dB) Stopband 1 Stopband 2 Connector Dimension (mm)
HB400-6CN (-1dB)397-403 -1.0 370.0M,>=60dB 430.0M,>=50dB N-K 107×28×43.5
HB445-8CS (-1dB)441-449 -2.2 400.0M,>=60dB 490.0M,>=55dB SMA-K 46×20´26

 



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