Bandpass filter
  • Bandpass filter
  • Bandpass filter
  • Bandpass filter
  • Bandpass filter

Bandpass filter

parameter:

Bandpass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

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Bandpass filters are widely used in wireless transmitters and receivers. The main function of such a filter in a transmitter is to limit the bandwidth of the output signal to the band allocated for the transmission. This prevents the transmitter from interfering with other stations. In a receiver, a bandpass filter allows signals within a selected range of frequencies to be heard or decoded, while preventing signals at unwanted frequencies from getting through. A bandpass filter also optimizes the signal-to-noise ratio and sensitivity of a receiver.Bandpass filter

In both transmitting and receiving applications, well-designed bandpass filters, having the optimum bandwidth for the mode and speed of communication being used, maximize the number of signal transmitters that can exist in a system, while minimizing the interference or competition among signals.


Type No.Centre   Wavelength
    (nm)
Bandwidth
    (nm)
Tpeak
    (%)
Blocking   Range
    (nm)
Blocking Depth
BPF-220/1022010>13200-2000OD3
BPF-254/1025410>20200-2000OD3
BPF-260/1026010>20200-2000OD3
BPF-266/1026610>20200-2000OD3
BPF-280/1228012>20200-2000OD3
BPF-302/1230212>20200-2000OD3
BPF-330/1233012>20200-2000OD3
BPF-340/1034010>50200-1200OD5
BPF-350/83508>35200-1200OD2
BPF-352/1035210>45200-1100OD5
BPF-355/83558>40200-1200OD4
BPF-355/1035510>50200-1100OD4
BPF-355/8535585>90200-1000OD3
BPF-358/1335813>55200-1100OD4
BPF-360/1036010>50200-1100OD4
BPF-360/1236012>50200-1200OD4
BPF-365/1036510>50200-1100OD4
BPF-365/4036540>60200-1100OD4
BPF-365/8036580>85200-800OD3
BPF-370/1037010>55200-1100OD3
BPF-375/1037510>55200-1100OD3
BPF-379/1237912>50200-1100OD3
BPF-387/1038710>60200-1100OD3
BPF-395/1039510>50200-1100OD3
BPF-400/1040010>55200-1200OD4
BPF-400/3040030>75200-1100OD4
BPF-405/1040510>55200-1100OD3
BPF-405/2040520>65200-1200OD4
BPF-410/84108>50200-1100OD4
BPF-410/2041020>65200-1200OD4
BPF-410/2541025>90200-1100OD3
BPF-410/3041030>85200-1100OD5
BPF-412/1041210>56200-1200OD4
BPF-415/1041510>60200-1200OD4
BPF-415/2041520>60200-1200OD4
BPF-415/5541555>85200-800OD4
BPF-418/1041810>60200-1200OD4
BPF-420/1042010>50200-1100OD4
BPF-420/2242022>85200-1100OD3
BPF-425/1042510>65200-1200OD4
BPF-427/1042710>70200-1200OD5
BPF-435/1043510>55200-1100OD5
BPF-440/1044010>50200-1200OD4
BPF-445/1044510>70200-1200OD4
BPF-447/1044710>50200-1200OD4
BPF-450/1045010>55200-1200OD4
BPF-450/5045050>60200-1200OD4
BPF-450/3045030>90200-1100OD3
BPF-450/5045050>90400-800OD3
BPF-450/10045010>75200-1200OD3
BPF-455/1045510>60200-1200OD4
BPF-456/1045610>75200-1200OD4
BPF-460/2046020>85200-1200OD3



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