Embodiments of this application disclose a dielectric filter and a communication device. In one example, the dielectric filter includes: a first dielectric block and a second dielectric block that are stacked up, where a first surface of the first dielectric block is opposite to a second surface of the second dielectric block; a first blind hole, a first through hole, and two or more resonance through holes whose openings are located on the first surface of the first dielectric block, and a second through hole whose opening is located on the second surface of the second dielectric block. A metal layer on the first surface of the first dielectric block is connected to a metal layer on the second surface of the second dielectric block.

Embodiments of this application disclose a dielectric filter and a communication device. In one example, the dielectric filter includes: a first dielectric block and a second dielectric block that are stacked up, where a first surface of the first dielectric block is opposite to a second surface of the second dielectric block; a first blind hole, a first through hole, and two or more resonance through holes whose openings are located on the first surface of the first dielectric block, and a second through hole whose opening is located on the second surface of the second dielectric block. A metal layer on the first surface of the first dielectric block is connected to a metal layer on the second surface of the second dielectric block.

Disclosed is a frequency-dependent microwave filter (1). The filter (1) comprises an enclosure (11) comprising a filter medium including at least one constituent of: atoms, molecules, ions, and point defects in an optically pumpable solid. The at least one constituent is excitable to an initial energy state. The filter (1) further comprises a field generator (12) configured to generate an inhomogeneous electric and/or magnetic field (12A) within the enclosure (11). The filter (1) further comprises means (13) for feedthrough of a microwave signal through the enclosure (11) and an optical pump (14) configured to periodically excite the at least one constituent of the filter medium to the initial energy state in alternation with the feedthrough of the microwave signal through the enclosure (11). Thereby, intensity-dependent filtering is achieved.

Disclosed is a frequency-dependent microwave filter (1). The filter (1) comprises an enclosure (11) comprising a filter medium including at least one constituent of: atoms, molecules, ions, and point defects in an optically pumpable solid. The at least one constituent is excitable to an initial energy state. The filter (1) further comprises a field generator (12) configured to generate an inhomogeneous electric and/or magnetic field (12A) within the enclosure (11). The filter (1) further comprises means (13) for feedthrough of a microwave signal through the enclosure (11) and an optical pump (14) configured to periodically excite the at least one constituent of the filter medium to the initial energy state in alternation with the feedthrough of the microwave signal through the enclosure (11). Thereby, intensity-dependent filtering is achieved.

The present invention provides target devices such as filter units with at least one receiving channel with a stop surface that is electrically conductive and at least one cable with a connector assembly on a first end portion. The connector assembly includes a first member with an open channel. The first member is coupled to the end portion of the outer conductor with the free end of the inner conductor and the end portion of the dielectric extending through the open channel to reside forward of the first member. The first member resides in a respective one of the at least one receiving channel against the stop surface. The connector assembly also includes second member with an open channel The second member is slidably coupled to the first end portion of the at least one cable and presses the first member against the stop surface.

The present invention provides target devices such as filter units with at least one receiving channel with a stop surface that is electrically conductive and at least one cable with a connector assembly on a first end portion. The connector assembly includes a first member with an open channel. The first member is coupled to the end portion of the outer conductor with the free end of the inner conductor and the end portion of the dielectric extending through the open channel to reside forward of the first member. The first member resides in a respective one of the at least one receiving channel against the stop surface. The connector assembly also includes second member with an open channel The second member is slidably coupled to the first end portion of the at least one cable and presses the first member against the stop surface.

The present invention relates to a waveguide E-plane filter component comprising a first and second main part (2) with a corresponding first and second waveguide section part (3). The main parts (2) are mounted to each other, such that a waveguide arrangement is formed. The waveguide arrangement has a height and a width. The waveguide E-plane filter component further comprises at least one electrically conducting foil (10, 11) that is placed between the main parts (3), said foil comprising a filter part (25) with apertures (12a, 12b, 12c, 12d). Each pair of adjacent apertures is separated by a corresponding foil conductor (13a, 13b, 13c) of which at least one is constituted by a tuning foil conductor (13a) that has a first, second and third part (14, 16, 18) with a corresponding first, second and third width (15, 17, 19).

The present invention relates to a waveguide E-plane filter component comprising a first and second main part (2) with a corresponding first and second waveguide section part (3). The main parts (2) are mounted to each other, such that a waveguide arrangement is formed. The waveguide arrangement has a height and a width. The waveguide E-plane filter component further comprises at least one electrically conducting foil (10, 11) that is placed between the main parts (3), said foil comprising a filter part (25) with apertures (12a, 12b, 12c, 12d). Each pair of adjacent apertures is separated by a corresponding foil conductor (13a, 13b, 13c) of which at least one is constituted by a tuning foil conductor (13a) that has a first, second and third part (14, 16, 18) with a corresponding first, second and third width (15, 17, 19).

In an end surface 32b of the second transmission line forming body 32 forming a second waveguide 30, the height of a central region 33 which includes an opening of the second transmission line 30b is a reference plane. A depressed portion 32e that is depressed to a depth greater than the length of a thread portion of a screw 205 from the reference plane is provided in a region outside the central region 33 and includes a screw hole forming position. A screw hole 32d for fixing an external circuit 200 to be connected is provided at the screw hole forming position in the depressed portion 32e. The height of a region, which is excluding the depressed portion 32e and is further away from the central region 33 than the screw hole forming position, is equal to the reference plane.

In an end surface 32b of the second transmission line forming body 32 forming a second waveguide 30, the height of a central region 33 which includes an opening of the second transmission line 30b is a reference plane. A depressed portion 32e that is depressed to a depth greater than the length of a thread portion of a screw 205 from the reference plane is provided in a region outside the central region 33 and includes a screw hole forming position. A screw hole 32d for fixing an external circuit 200 to be connected is provided at the screw hole forming position in the depressed portion 32e. The height of a region, which is excluding the depressed portion 32e and is further away from the central region 33 than the screw hole forming position, is equal to the reference plane.