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Bandpass Filter

A Bandpass Filter (BPF) is a passive RF component that passes signals within a specified frequency range—between a lower and an upper cutoff frequency—while attenuating all frequencies outside that band. Bandpass filters are designed for low passband insertion loss and high stopband rejection, effectively isolating the desired frequency band and blocking out-of-band interference, harmonics, and spurious signals from reaching sensitive receiver front-ends
  • GSM Band Cavity Bandpass Filter with Passband 864MHz-872MHz

    GSM Band Cavity Bandpass Filter with Passband 864MHz-872MHz

    CBF00864M00872M80NWP is a GSM-band coaxial bandpass filter with a passband frequency of 864MHz to 872MHz. The typical insertion loss of the bandpass filter is 1.0dB and the passband ripple is ±0.2dB. The rejection frequencies are 721-735MHz . The typical rejection is 80dB@721-735MHz. The typical passband VSWR of the filter is better than 1.2. This RF cavity band pass filter design is built with SMA connectors that are female gender

  • UHF Band Cavity Bandpass Filter with Passband 225MH-400MHz

    UHF Band Cavity Bandpass Filter with Passband 225MH-400MHz

     

    Concept model CBF00225M00400N01 is a cavity band pass filter with a center frequency of 312.5MHz designed for operation UHF band. It has a max insertion loss of 1.0 dB and a maximum VSWR of 1.5:1. This model is outfitted with N-female connectors.

  • GSM Band Cavity Bandpass Filter with Passband from 950MHz-1050MHz

    GSM Band Cavity Bandpass Filter with Passband from 950MHz-1050MHz

     

    Concept model CBF00950M01050A01 is a cavity band pass filter with a center frequency of 1000MHz designed for operation GSM band. It has a max insertion loss of 2.0 dB and a maximum VSWR of 1.4:1. This model is outfitted with SMA-female connectors.

  • GSM Band Cavity Bandpass Filter with Passband 1300MHz-2300MHz

    GSM Band Cavity Bandpass Filter with Passband 1300MHz-2300MHz

     

    Concept model CBF01300M02300A01 is a cavity band pass filter with a center frequency of 1800MHz designed for operation GSM band. It has a max insertion loss of 1.0 dB and a maximum VSWR of 1.4:1. This model is outfitted with SMA-female connectors.

  • GSM Band Cavity Bandpass Filter with Passband 936MHz-942MHz

    GSM Band Cavity Bandpass Filter with Passband 936MHz-942MHz

     

    Concept model CBF00936M00942A01 is a cavity band pass filter with a center frequency of 939MHz designed for operation GSM900 band. It has a max insertion loss of 3.0 dB and a maximum VSWR of 1.4. This model is outfitted with SMA-female connectors.

  • L Band Cavity Bandpass Filter with Passband 1176-1610MHz

    L Band Cavity Bandpass Filter with Passband 1176-1610MHz

     

    Concept model CBF01176M01610A01 is a cavity band pass filter with a center frequency of 1393MHz designed for operation L band. It has a max insertion loss of 0.7dB and a maximum return loss of 16dB. This model is outfitted with SMA-female connectors.

  • S Band Cavity Bandpass Filter with Passband 3100MHz-3900MHz

    S Band Cavity Bandpass Filter with Passband 3100MHz-3900MHz

     

    Concept model CBF03100M003900A01 is a cavity band pass filter with a center frequency of 3500MHz designed for operation S band. It has a max insertion loss of 1.0 dB and a maximum return loss of 15dB. This model is outfitted with SMA-female connectors.

  • UHF Band Cavity Bandpass Filter with Passband 533MHz-575MHz

    UHF Band Cavity Bandpass Filter with Passband 533MHz-575MHz

     

    Concept model CBF00533M00575D01 is a cavity band pass filter with a center frequency of 554MHz designed for operation UHF band with 200W high power. It has a max insertion loss of 1.5dB and a maximum VSWR of 1.3. This model is outfitted with 7/16 Din-female connectors.

  • X Band Cavity Bandpass Filter with Passband 8050MHz-8350MHz

    X Band Cavity Bandpass Filter with Passband 8050MHz-8350MHz

    Concept model CBF08050M08350Q07A1 is a cavity band pass filter with a center frequency of 8200MHz designed for operation X band. It has a max insertion loss of 1.0 dB and a maximum return loss of 14dB. This model is outfitted with SMA-female connectors.

  • Bandpass Filter

    Bandpass Filter

    Features

     

    •  Very low insertion loss, typically 1 dB or much less

    •  Very high selectivity typically 50 dB to 100 dB

    •  Broad, high frequency pass and stopbands

    •  Ability to handle very high Tx power signals of its system and other wireless systems signals appearing at its Antenna or Rx input

     

    Applications of the Bandpass Filter

     

    •  Bandpass filters are used in a wide range of applications such as mobile devices

    •  High-performance Bandpass filters are used in 5G supported devices to improve signal quality

    •  Wi-Fi routers are using bandpass filters to improve signal selectivity and avoid other noise from surroundings

    •  Satellite technology uses bandpass filters to choose the desired spectrum

    •  Automated vehicle technology is using bandpass filters in their transmission modules

    •  Other common applications of bandpass filters are RF test laboratories to simulate test conditions for various applications