Narrow Band and Wideband Lowpass and Lowpass Harmonic Filters

Low Pass Filters
 

  •  Design uses an evanescent-mode waveguide technique
  • Single and double ridge structures for low and medium power applications; triple and double antipodal ridge (with or without   groove) structures for

    • high power applications.
  • Single ridge with TM-coupling for small size quasi eliptic filters

    • Characteristics:
     

  • Low insertion loss, wide out -of-band rejection
  • In band and out-of-band spurious free response
  • mall size, light weight

    • Lowpass Filters
     
    Passband (GHz)
    12 - 18
    18 - 26.5
    26.5 - 40
    R.L. (dB)
    > 15
    > 15
    > 15
    I.L. (dB)
    < 0.5
    < 0.75
    < 1.0
    Stopband Rejection (dB)
    60
    60
    60
    Stopband Frequency (GHz)
    20.7 - 54
    30.5 - 79.5
    46 - 120
    Size (inches)
    3.8 x 1.3 x 1.3
    2.8 x 1 x 1
    2 x 0.75 x 0.75
    Interface
    WR62
    WR42
    WR28
    Typical Examples

    Narrow Band Filters
     
    Ridge Structure Single/Double Triple/D.Antip. S.R. & TM Coupling
    Passband (GHz)
    11.7 - 12.2
    12.2 - 12.75
    11.7 - 12.2
    12.2 - 12.75
    11.7 - 12.2
    12.2 - 12.75
    R.L. (dB)
    26
    26
    26
    I.L. (dB)
    0.2
    0.25
    0.25
    Stopbandrejection (dB)
    60
    60
    60
    Stopband Frequency (GHz)
    14 - 38.5
    14 - 14.5
    2nd & 3rd
    harmonic
    14 - 25.5
     
     
    Power Handling (W)
    800
    2000
    1000
    Size (inches)
    4 x 1.5 x 1.5
    4 x 1.5 x 1.5
    2.6 x 1.5 x 1.5
    Interface
    WR75
    WR75
    WR75

     
    Wideband Filters
     
    Ridge Structure Single/Double Triple/D.Antip. S.R. & TM Coupling
    Passband (GHz)
    10.7 - 12.75
    10.7 - 12.75
    10.7 - 12.75
    R.L. (dB)
    21
    21
    21
    I.L. (dB)
    0.25
    0.3
    0.3
    Stopbandrejection (dB)
    60
    60
    60
    Stopband Frequency (GHz)
    14 - 38.5
    14 - 14.5
    2nd & 3rd
    harmonic
    14 - 25.5
     
     
    Power Handling (W)
    800
    2000
    1000
    Size (inches)
    4.5 x 1.5 x 1.5
    4.5 x 1.5 x 1.5
    3 x 1.5 x 1.5
    Interface
    WR75
    WR75
    WR75
     
    For exact dimensions and specifications contact the home office for outline drawings