Patent ID: 9024705
Filing Date: 2015-05-05
Classification: H01P

Abstract:
1. A cavity filter, comprising: a base member comprising a resonant space defined therein, an antenna port, which runs through a thickness direction of the filter, two signal input/output ports respectively disposed at two distal ends of said resonant space for signal input/output, two series of resonance chambers respectively connected between said signal input/output ports and said antenna port, the antenna port being disposed at the center of the two series of resonance chambers, and the first and last resonance chambers of each said series of resonance chambers and the second and the second to last resonance chambers of each said series of resonance chambers are directly separated by a respective partition plate with a channel cut therethrough; and a cover member covered on said base member to close said resonant space, said cover member carrying a plurality of frequency-adjusting rods of a frequency adjustment device for tuning by a user to adjust the frequency and bandwidth in said resonant space.