The TBF (triple band pass filter) contains one or two complete pass band, one low pass band or one high pass band.
Please refer to the graph below.
A common application is to pass two bands of the forward path signals/ channels and return path band.
But it also has other combine of pass bands according to customer's system needs.
The circuit architecture of this triple band pass filter was invented by Soontai.
We can design filters with more than 3 passbands, and even more, and according to your specifications.
Soontai's triple band pass filters provide many features (see below).
1. Wide and deep reject band, provides excellent rejection capabilities to clear undesired signal,
rejection better than 50dB.
2. Lowest insertion loss, signal-through-loss reduced to a minimum.
3. Excellent return loss, good impedance match reduces signal loss to keep the signal clean. (see figure)
4. Dual layer copper tubes provide the best radio frequency interference (RFI) / electromagnetic interference (EMI) protection.
For more filter products, please see our filter category.
To learn more filter types please see the filter profile technical notes in our Tech Support.
Custom filters or more details on inquires, please refer to Custom Filters.