CAVITY FILTER

摘要

A cavity filter includes a first layer circuit board, a second layer circuit board and a middle layer circuit board locates between the first layer circuit board and the second layer circuit board. A plurality of resonators locates on the first layer circuit board. A plurality of resonating cavities is located on the second layer circuit board one-to-one corresponding to the resonators. A slot is defined on the middle layer circuit board. The resonators traverse through the slot and are placed in the resonating cavities to form a plurality of resonating units, and the plurality of resonating couple with the slot of the middle layer circuit board.

主权项

1. A cavity filter, comprising:
a first layer circuit board; a second layer circuit board; a middle layer circuit board located between the first layer circuit board and the second layer circuit board, and the middle layer circuit board defining a slot; a plurality of resonators located on the first layer circuit board; a plurality of resonating cavities located on the second layer circuit board, wherein the plurality of resonating cavities one-to-one correspond to the plurality of resonators; wherein the plurality of resonators traverse through the slot and are placed in the resonating cavities to form a plurality of resonating units, and the plurality of resonating units couple with the slot of the middle layer circuit.