HIGH-FREQUENCY FILTER WITH DIELECTRIC SUBSTRATES FOR TRANSMITTING TM MODES IN TRANSVERSE DIRECTION

摘要

A high-frequency filter consists of a housing, which includes resonators, each of which has at least one dielectric. The n resonators are arranged along a central axis. The n resonators are isolated from one another by at least n−1 isolation devices. The n−1 isolation devices have coupling openings, through which a coupling is established at a right angle to or with one component predominantly at a right angle to the H field. A first signal line terminal is inserted into the first resonator chamber through a first opening in the housing and is in contact with the respective dielectric there. In addition or alternatively, a second signal line terminal is inserted into the nth resonator chamber through a second opening in the housing and is in contact with the respective dielectric there.

主权项

1. A high-frequency filter having a housing, comprising:
at least n resonators, each of which comprises a resonator chamber surrounded by the housing, where n≧2, the resonator chambers of the n resonators being arranged next to one another in the direction of signal transmission, which is perpendicular to an H field; at least n dielectrics, at least one of which is arranged in a resonator chamber of the n resonators; n−1 isolation devices, wherein each resonator chamber is adjacent to at most two other resonator chambers and is isolated from each of them by an isolation device; each of the n−1 isolation devices having at least one coupling opening through which the adjacent resonator chambers are coupled to one another; the coupling between the resonator chambers taking place at a right angle or with one component predominantly at a right angle to the H field; a first signal line terminal being coupled to the at least one dielectric through a first opening in the housing of the first resonator; and
a) the first signal line terminal is in central or eccentric contact with the dielectric in the resonator chamber of the first resonator; orb) the dielectric in the resonator chamber of the first resonator has an indentation into which the first signal line terminal protrudes; orc) the dielectric in the resonator chamber of the first resonator has a continuous recess through which the first signal line terminal extends, so that the first signal line terminal is in contact with the first isolation device; and/or a second signal line terminal is coupled to the dielectric of the nth resonator through a second opening in the housing; and
a) the second signal line terminal is in central or eccentric contact with the dielectric in the resonator chamber of the nth resonator; orb) the dielectric in the resonator chamber of the n-th resonator has an indentation into which the second signal line terminal protrudes; orc) the dielectric in the resonator chamber of the n-th resonator has a continuous recess through which the second signal line terminal extends, so that the second signal line terminal is in contact with the n−1-th isolation device.