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    Filter products Showing all 7 results
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    BAND PASS FILTER

    DETI has been designing Band pass filters over the last 25 years. As a result, we can offer you a variety of designs and technologies. Therefore you can choose the product best suited for your application:

    • Planar filters : Wideband, cost efficient and small, this technology offers products with good VSWR and insertion losses, and a good rejection. However, it can handle only small amounts of power (usually a couple of Watts).

    • Mecanical filters :  Interdigited, combline or cavity, all of these mecanical filter technologies show the same advantage:  a very strong quality coefficient. It means that these filters have very low insertion losses and a tight and strong rejection. They can also cope with more power. However, because of the complexity of their design they are usually not as small and cost-efficient as planar Filter.

    DETI offers products over a 1 to 40 GHz frequency range. Please contact us if you need to customize a product or to request a new design.

    LOWPASSHIGHPASSBANDPASSBANDSTOP

    Filter products Showing all 7 results
    Fmin (MHz)
    Fmax (MHz)
    • Band Pass Filter 2.0 – 18 GHz

      This Suspended Substrate Bandpass filter shows high-end performances in its 2000 MHz to 18000 MHz bandwidth. Indeed, it offers very low insertion losses < 1 dB and a VSWR < 2.0:1. Futhermore, it has a strong rejection of 20 dB from DC to 1200 MHz and of 20 dB starting from 21000 MHz. Moreover, it can cope with an average input power up to 2 W CW in a small volume of 24.8 x 17.5 x 10.2 mm ( 0.98 x 0.69 x 0.4 Inch(es)).

    • Band Pass Filter 23.1 GHz

      This Mecanical Inter Digited Bandpass filter shows high-end performances in its 22700 MHz to 23500 MHz bandwidth. Indeed, it offers very low insertion losses < 1.5 dB and a VSWR < 1.5:1. Futhermore, it has a strong rejection of 60 dB from DC to 21000 MHz and of 60 dB starting from 25000 MHz. Moreover, it can cope with an average input power up to 2 W CW in a small volume of 35 x 10 x 10 mm ( 1.38 x 0.39 x 0.39 Inch(es)).

    • Band Pass Filter 4230 – 4232 MHz

      This Cavity Bandpass filter shows high-end performances in its 4230 MHz to 4232 MHz bandwidth. Indeed, it offers very low insertion losses < 0.5 dB and a VSWR < 1.5:1. Futhermore, it has a strong rejection of 40 dB from DC to 4081 MHz and of 40 dB starting from 4381 MHz. Moreover, it can cope with an average input power up to 30 W CW in a small volume of 30 x 82.9 x 37.2 mm ( 1.18 x 3.26 x 1.46 Inch(es)).

    • Band Pass Filter 7250 – 7750 MHz (1)

      This Cavity Bandpass filter shows high-end performances in its 7250 MHz to 7750 MHz bandwidth. Indeed, it offers very low insertion losses < 0.9 dB and a VSWR < 1.33:1. Futhermore, it has a strong rejection of 31 dB from DC to 7100 MHz and of 43 dB starting from 7900 MHz. Moreover, it can cope with an average input power up to 0.5 W CW in a small volume of 82 x 16 x 15 mm ( 3.23 x 0.63 x 0.59 Inch(es)).

    • Band Pass Filter 7250 – 7750 MHz (2)

      This Cavity Bandpass filter shows high-end performances in its 7250 MHz to 7750 MHz bandwidth. Indeed, it offers very low insertion losses < 1.1 dB and a VSWR < 1.38:1. Futhermore, it has a strong rejection of 65 dB from DC to 6100 MHz and of 48 dB starting from 7900 MHz. Moreover, it can cope with an average input power up to 1.5 W CW in a small volume of 82 x 16 x 15 mm ( 3.23 x 0.63 x 0.59 Inch(es)).

    • Band Pass Filter 7900 – 8400 MHz

      500,00 

      This Cavity Bandpass filter shows high-end performances in its 7900 MHz to 8400 MHz bandwidth. Indeed, it offers very low insertion losses < 1.1 dB and a VSWR < 1.45:1. Futhermore, it has a strong rejection of 53 dB from DC to 7750 MHz and of 50 dB starting from 11850 MHz. Moreover, it can cope with an average input power up to 40 W CW in a small volume of 82 x 15 x 12.7 mm ( 3.23 x 0.59 x 0.5 Inch(es)).

    • Filter 1.2 – 1.4 GHz

      This Mecanical Combline Bandpass filter shows high-end performances in its 1250 MHz to 1400 MHz bandwidth. Indeed, it offers very low insertion losses < 0.5 dB and a VSWR < 1.5:1. Futhermore, it has a strong rejection of 50 dB from DC to 1050 MHz and of 50 dB starting from 1600 MHz. Moreover, it can cope with an average input power up to 1 W CW in a small volume of 240 x 43.5 x 25.4 mm ( 9.45 x 1.71 x 1 Inch(es)).

    A band pass filter is a component which selects a predefined part of a frequency range, the selected part is called: the passband. The bandpass filter will therefore act in such a way as to let pass signals in its passband and to block those that are higher or lower. It can be form by adding a high pass and a low pass filter in series or by using resonant elements (usually quarter length coupled lines). In order to define the filter need in a particular system, the main specifcations are as follow:

    • The bandwidth: defined by Fmin and Fmax (also called cut-off frequencies), it is the frequency range in which the signals are allowed to go through the filter. Usually, maximum insertion losses and VSWR are given within this range.

    • The rejection frequencies both “before” and “after” the pass band and the value of attenuation, defining the quantity of signal passing through the filter even out of the pass band.

    Band-pass filter are used in several cases:

    • To reduce noise and improve signal quality

    • To reinforce the isolation of transmitters

    • To improve the input selectivity of receivers and amplifiers

    All our bandpass filters are designed to be compact and to withstand complicated environmental conditions to make them adaptable to all your projects.