Signal Filters / Radio Frequency Filters / Band Pass
. The metal casing of the filter must ensure good contact with the conductive surface or metal surface of the chassis, and the grounding wire must be properly connected.
. The input and output lines of the filter must be kept apart and must not run in parallel to avoid a reduction in the filter's performance.
. It is best to use twisted-pair cables for the connection lines of the filter, as they can effectively eliminate some high-frequency interference signals.
. The installation position of the filter should be selected at the power inlet to shorten the length of the input line inside the chassis and reduce radiation
Interference.
. The use of filters mainly takes into account their insertion loss. The curves (parameters) provided by manufacturers are generally within the standard range
The test result is 50, but the actual application equipment is generally not 50, and there will be some offset in insertion loss.
. The second point to note when using a filter is the working voltage, working current, withstand voltage value,