Ultra-wide Bandpass Filters

Spacek Labs Ultra-wide Bandpass Filter or “Combo Filter” uses a high pass filter along with a low pass filter to produce a bandpass filter that eliminates harmonic resonances outside the passband. The filters can be designed for extremely high rejection levels, up to 100 dB. These filters are an excellent choice for filtering out unwanted harmonics of a multiplied local oscillator or for enhancing channel isolation on a transceiver. For tight space requirements the length of the filters can be reduced by machining the low pass filter directly inside the high pass filter.


When ordering, we will ask you for a specific pass band, what frequencies you would like to reject and  the amount of rejection you would like to achieve.  We can also deliver our waveguide filters with coaxial input and/or output by integrating the transitions from our full line of waveguide to coax adapters.

  

Standard Features:

  • Frequency Bandwidth: Full waveguide bandwidth
  • Insertion Loss: 1.5 to 4.5 dB max

  • VSWR: 1.5:1 typ
  • Higher rejection levels available
  • Custom passbands available
Part NumberConnectors
(Input/Output)
Passband Frequency
(GHz)
Insertion Loss
(dB) Max
Lower Rejection @ Frequency
(dB @ GHz)
Upper Rejection @ Frequency
(dB @ GHz)
Fc2 P/NConnectors
(Input/Output)
Passband Frequency
(GHz)
Insertion Loss
(dB) Max
Lower Rejection @ Frequency
(dB @ GHz)
Upper Rejection @ Frequency
(dB @ GHz)
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Fc2-22-11WR-4218-26.52.525 @ 1625 @ 29
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Fc2-33-11WR-2826.5-402.525 @ 2425 @ 43
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Fc2-41-11WR-2233-503.025 @ 3025 @ 54
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Fc2-50-11WR-1940-603.525 @ 3625 @ 65
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Fc2-62-11WR-1550-754.025 @ 4525 @ 81
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Fc2-75-11WR-1260-904.025 @ 5425 @ 97
-
Fc2-92-11WR-1075-1104.525 @ 6825 @ 115
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More Ultra-wide Bandpass Filters
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