Low temperature co-fired ceramic ultra-wideband micro filter

The invention relates to a low-temperature co-fired ceramic ultra-wideband micro filter, comprising input and output interfaces suitable for pasting on a surface; input and output inductors; nine parallel resonance units implemented by three-layer folded coupling strip line and comb type coupled resonance structures; and eight groups of enhanced coupling diaphragms with resonance levels which are directly connected with each other, the structures are implemented by multi-layer low-temperature co-fired ceramic technology. According to the invention, the low-temperature co-fired ceramic ultra-wideband micro filter has the advantages of wide frequency coverage, low insertion loss, good controllability, small volume, light weight, high reliability, good electrical property, good phase frequency characteristic linearity, good temperature stability, low cost and mass production, and is particularly applied to fields of millimeter wave communication, microwave navigation, guidance, telemetry, remote control, satellite communication and military confrontation, and corresponding frequency range systems having excessive demand on volume, weight, electrical property and reliability.