Interdigital Cavity Bandpass Filters

Sirius Microwave’s series of interdigital cavity bandpass filters covers frequencies from 400MHz to 35GHz. These filters are available for bandwidths from 1% to 80% and with 3 to 20+ resonant sections. Interdigital design features high “Q”, wide passband and symmetric response. Some examples of Interdigital designs are listed in table below. Contact factory for special requirements here.

Category:

Description

Features

  • High “Q” Response

  • Low Insertion Loss

  • Symmetric Rejection

  • 3 dB Bandwidth from 1-80%

  • 3 to 20+ sections

  • Stopbands up to 2.7*Fc

Specifications

Model no. Center Frequency [MHz] 1dB Bandwidth [MHz] VSWR Insertion Loss [dB] Lower Stopband DC to [GHz] Higher Stopband from [GHz] Higher Stopband to [GHz] Stopband attenuation [dB] Power
FID10-1400-600 1400 600 1.5 : 1 0.4 0.9 1.95 3.1 50 50
FID10-5200-3200 5200 3200 2.0 : 1 1.5 2.8 7.5 15 50 5
FID8-7000-4000 7000 4000 1.5 : 1 0.6 2.7 10.3 19 50 10
FID11-7000-4400 7000 4400 2.0 : 1 1.5 3.8 10.5 16 50 5
FID12-9000-4600 9000 4600 1.5 : 1 0.6 5.5 12.5 21 60 10
FID7-9200-250 9200 250 1.5 : 1 1.2 8.85 9.55 20 60 10
FID11-9400-6000 9400 6000 2.0 : 1 1.5 5.1 13.9 21 50 5
FID14-11000-6000 11000 6000 1.7 : 1 1.0 7 15 25 60 5
FID10-13000-10000 13000 10000 1.7 : 1 1.0 6 20.5 30 40 5
FID10-14000-8000 14000 8000 2.0 : 1 1.5 8 21.5 28 50 5

Model no. description:

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